{"id":89083,"date":"2026-08-02T12:00:49","date_gmt":"2026-08-02T04:00:49","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/89083.html"},"modified":"2026-08-02T12:00:49","modified_gmt":"2026-08-02T04:00:49","slug":"linux-%e7%a3%81%e7%9b%98%e5%88%86%e5%8c%ba%e7%ae%a1%e7%90%86-raid%e5%ad%98%e5%82%a8%e6%8a%80%e6%9c%af-%e9%80%bb%e8%be%91%e5%8d%b7%e7%ae%a1%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/89083.html","title":{"rendered":"Linux \u78c1\u76d8\u5206\u533a\u7ba1\u7406 | RAID\u5b58\u50a8\u6280\u672f | \u903b\u8f91\u5377\u7ba1\u7406"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>Linux \u78c1\u76d8\u5206\u533a\u7ba1\u7406 | RAID\u5b58\u50a8\u6280\u672f | \u903b\u8f91\u5377\u7ba1\u7406<\/li>\n<li>\n<ul>\n<li>\u78c1\u76d8\u5206\u533a\u7ba1\u7406<\/li>\n<li>\n<ul>\n<li>\u4e00\u3001 GPT \u5206\u533a\u65b9\u6848\u6df1\u5ea6\u89e3\u6790<\/li>\n<li>\n<ul>\n<li>1. \u4e3a\u4ec0\u4e48\u9700\u8981 GPT&#xff1f;<\/li>\n<li>2. GPT \u5206\u533a\u8868\u7ed3\u6784&#xff08;LBA \u5e03\u5c40&#xff09;<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001 \u78c1\u76d8\u5206\u533a\u7ba1\u7406\u5de5\u5177\u5b9e\u6218<\/li>\n<li>\n<ul>\n<li>1. &#096;gdisk&#096; \u5de5\u5177\u7ba1\u7406 GPT \u78c1\u76d8<\/li>\n<li>\n<ul>\n<li>1.1 \u67e5\u770b\u5206\u533a\u8868\u4e0e\u8f6c\u6362\u4e3a GPT<\/li>\n<li>1.2 \u521b\u5efa\u65b0\u5206\u533a<\/li>\n<li>1.3 \u66f4\u6539\u5206\u533a\u540d\u79f0\u4e0e\u67e5\u770b\u8be6\u60c5<\/li>\n<li>1.4 \u5220\u9664\u5206\u533a<\/li>\n<\/ul>\n<\/li>\n<li>2. &#096;wipefs&#096; \u5de5\u5177&#xff1a;\u5f7b\u5e95\u6e05\u9664\u78c1\u76d8\u5143\u6570\u636e<\/li>\n<li>3. &#096;parted&#096; \u5de5\u5177&#xff1a;\u5168\u80fd\u5206\u533a\u7ba1\u7406\u5927\u5e08<\/li>\n<li>\n<ul>\n<li>3.1 \u8bbe\u7f6e\u5355\u4f4d\u4e0e\u67e5\u770b\u5206\u533a\u8868<\/li>\n<li>3.2 \u7ba1\u7406 MBR (msdos) \u78c1\u76d8<\/li>\n<li>3.3 \u7ba1\u7406 GPT \u78c1\u76d8<\/li>\n<li>3.4 \u975e\u4ea4\u4e92\u5f0f\u64cd\u4f5c&#xff08;\u5355\u884c\u547d\u4ee4&#xff09;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001 \u6587\u4ef6\u7cfb\u7edf\u6301\u4e45\u5316\u6302\u8f7d&#xff08;&#096;\/etc\/fstab&#096;&#xff09;<\/li>\n<li>\n<ul>\n<li>1. &#096;\/etc\/fstab&#096; \u516d\u5b57\u6bb5\u8be6\u89e3<\/li>\n<li>2. \u5b9e\u6218\u914d\u7f6e\u4e0e\u6d4b\u8bd5<\/li>\n<\/ul>\n<\/li>\n<li>\u56db\u3001 \u6587\u4ef6\u7cfb\u7edf\u7a7a\u95f4\u4e0d\u8db3\u7efc\u5408\u6392\u969c<\/li>\n<li>\n<ul>\n<li>\u573a\u666f 1&#xff1a;\u5927\u91cf\u7684\u5927\u6587\u4ef6\u5360\u7528\u7a7a\u95f4<\/li>\n<li>\u573a\u666f 2&#xff1a;\u5220\u9664\u6587\u4ef6\u540e&#xff0c;\u7a7a\u95f4\u6ca1\u6709\u91ca\u653e&#xff08;\u7ecf\u5178\u9677\u9631&#xff09;<\/li>\n<li>\u573a\u666f 3&#xff1a;inode \u8017\u5c3d&#xff08;\u5927\u91cf\u5c0f\u6587\u4ef6\u5360\u6ee1&#xff09;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>RAID\u5b58\u50a8\u6280\u672f<\/li>\n<li>\n<ul>\n<li>\u4e00\u3001 RAID \u6280\u672f\u6982\u8ff0<\/li>\n<li>\n<ul>\n<li>1.1 RAID \u7684\u5386\u53f2\u4e0e\u5b9a\u4e49<\/li>\n<li>1.2 RAID \u7684\u5b9e\u73b0\u65b9\u5f0f<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001 \u6838\u5fc3 RAID \u7ea7\u522b\u8be6\u89e3<\/li>\n<li>\n<ul>\n<li>2.1 RAID 0&#xff08;\u6761\u5e26\u5316&#xff09;<\/li>\n<li>2.2 RAID 1&#xff08;\u955c\u50cf&#xff09;<\/li>\n<li>2.3 RAID 5&#xff08;\u5206\u5e03\u5f0f\u5947\u5076\u6821\u9a8c&#xff09;<\/li>\n<li>2.4 RAID 6&#xff08;\u53cc\u91cd\u5206\u5e03\u5f0f\u5947\u5076\u6821\u9a8c&#xff09;<\/li>\n<li>2.5 RAID 10&#xff08;\u6761\u5e26\u5316&#043;\u955c\u50cf&#xff09;<\/li>\n<li>2.6 \u590d\u5408 RAID \u7ea7\u522b&#xff08;RAID 50 \/ RAID 60&#xff09;<\/li>\n<li>2.7 RAID \u5404\u7ea7\u522b\u53c2\u6570\u5bf9\u6bd4\u603b\u7ed3<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001 \u8f6f RAID \u7684\u914d\u7f6e\u4e0e\u7ba1\u7406\u5b9e\u6218&#xff08;&#096;mdadm&#096;&#xff09;<\/li>\n<li>\n<ul>\n<li>3.1 RAID 0 \u7684\u521b\u5efa\u4e0e\u7ba1\u7406<\/li>\n<li>3.2 RAID 1 \u7684\u5bb9\u9519\u4e0e\u70ed\u5907\u76d8\u673a\u5236<\/li>\n<li>3.3 RAID 5 \u7684\u52a8\u6001\u6269\u5bb9\u4e0e\u6545\u969c\u6a21\u62df<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u903b\u8f91\u5377\u7ba1\u7406<\/li>\n<li>\n<ul>\n<li>\u786c\u76d8\u5206\u533a\u7ba1\u7406\u65b9\u6848\u7f3a\u70b9<\/li>\n<li>\u903b\u8f91\u5377\u7ba1\u7406&#xff08;LVM&#xff09;\u7684\u4f18\u52bf<\/li>\n<li>\u57fa\u672c\u6982\u5ff5<\/li>\n<li>LVM \u7ba1\u7406\u57fa\u672c\u6d41\u7a0b<\/li>\n<li>\n<ul>\n<li>\u521b\u5efa\u7269\u7406\u5377<\/li>\n<li>\u521b\u5efa\u5377\u7ec4<\/li>\n<li>\u521b\u5efa\u903b\u8f91\u5377<\/li>\n<li>\u521b\u5efa\u6587\u4ef6\u7cfb\u7edf<\/li>\n<li>\u6e05\u7406 LVM<\/li>\n<\/ul>\n<\/li>\n<li>\u6269\u5c55\u548c\u7f29\u51cf\u5377\u7ec4<\/li>\n<li>\n<ul>\n<li>\u73af\u5883\u51c6\u5907<\/li>\n<li>\u6269\u5c55\u5377\u7ec4<\/li>\n<li>\u7f29\u51cf\u5377\u7ec4<\/li>\n<li>\u6269\u5c55\u903b\u8f91\u5377<\/li>\n<li>\u7f29\u51cf\u903b\u8f91\u5377<\/li>\n<li>\u6269\u5c55 XFS \u6587\u4ef6\u7cfb\u7edf<\/li>\n<li>\u6269\u5c55 EXT4 \u6587\u4ef6\u7cfb\u7edf<\/li>\n<li>\u7f29\u51cf EXT4 \u6587\u4ef6\u7cfb\u7edf<\/li>\n<li>\u903b\u8f91\u5377\u5feb\u7167<\/li>\n<\/ul>\n<\/li>\n<li>RAID \u903b\u8f91\u5377<\/li>\n<li>\n<ul>\n<li>\u521b\u5efa RAID1 \u903b\u8f91\u5377<\/li>\n<li>\u6a21\u62df\u6545\u969c\u4e0e\u4fee\u590d<\/li>\n<li>\u521b\u5efa RAID5 \u903b\u8f91\u5377\u793a\u4f8b<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Linux \u78c1\u76d8\u5206\u533a\u7ba1\u7406 | RAID\u5b58\u50a8\u6280\u672f | \u903b\u8f91\u5377\u7ba1\u7406<\/h2>\n<h3>\u78c1\u76d8\u5206\u533a\u7ba1\u7406<\/h3>\n<h4>\u4e00\u3001 GPT \u5206\u533a\u65b9\u6848\u6df1\u5ea6\u89e3\u6790<\/h4>\n<h5>1. \u4e3a\u4ec0\u4e48\u9700\u8981 GPT&#xff1f;<\/h5>\n<p>\u4f20\u7edf\u7684 MBR&#xff08;Master Boot Record&#xff09; \u5206\u533a\u65b9\u6848\u81ea 1982 \u5e74\u4ee5\u6765\u957f\u671f\u7edf\u6cbb\u78c1\u76d8\u7ba1\u7406&#xff0c;\u4f46\u5176\u5177\u6709\u4e24\u4e2a\u786c\u6027\u74f6\u9888&#xff1a;<\/p>\n<ul>\n<li>\u5bb9\u91cf\u9650\u5236&#xff1a;MBR \u8bb0\u5f55\u5206\u533a\u603b\u6247\u533a\u6570\u65f6\u4ec5\u4f7f\u7528 4 \u4e2a\u5b57\u8282&#xff0c;\u6700\u5927\u53ea\u80fd\u8868\u793a 2^32 \u4e2a\u6247\u533a\u3002\u6309\u6bcf\u6247\u533a 512 \u5b57\u8282\u8ba1\u7b97&#xff0c;MBR \u5355\u4e2a\u5206\u533a\u6700\u5927\u65e0\u6cd5\u8d85\u8fc7 2 TiB\u3002<\/li>\n<li>\u5206\u533a\u6570\u91cf\u9650\u5236&#xff1a;MBR \u6700\u591a\u652f\u6301 4 \u4e2a\u4e3b\u5206\u533a&#xff0c;\u5373\u4f7f\u5229\u7528\u6269\u5c55\u5206\u533a\u548c\u903b\u8f91\u5206\u533a&#xff0c;\u6700\u591a\u4e5f\u53ea\u80fd\u6269\u5c55\u5230 15 \u4e2a\u5206\u533a\u3002<\/li>\n<\/ul>\n<p>\u800c GPT&#xff08;GUID Partition Table&#xff09; \u662f\u8fd0\u884c\u5728 UEFI \u56fa\u4ef6 \u7cfb\u7edf\u4e0a\u7684\u5168\u65b0\u6807\u51c6&#xff0c;\u5f7b\u5e95\u89e3\u51b3\u4e86\u4e0a\u8ff0\u95ee\u9898&#xff1a;<\/p>\n<ul>\n<li>\u8d85\u5927\u5bb9\u91cf&#xff1a;GPT \u4f7f\u7528 8 \u4e2a\u5b57\u8282&#xff08;64 \u4f4d&#xff09;\u5b58\u50a8\u6247\u533a\u603b\u6570&#xff0c;\u7406\u8bba\u53ef\u652f\u6301 18 ZiB&#xff08;\u7ea6 18 \u4ebf TB&#xff09;\u7684\u5206\u533a\u548c\u78c1\u76d8\u3002<\/li>\n<li>\u6d77\u91cf\u5206\u533a&#xff1a;GPT \u9ed8\u8ba4\u652f\u6301 128 \u4e2a\u5206\u533a&#xff08;\u8fdc\u8d85 MBR \u7684 15 \u4e2a&#xff09;&#xff0c;\u65e0\u9700\u7e41\u7410\u7684\u6269\u5c55\u5206\u533a\u903b\u8f91\u3002<\/li>\n<li>\u6570\u636e\u5197\u4f59&#xff1a;GPT \u5728\u78c1\u76d8\u5934\u90e8\u548c\u5c3e\u90e8\u5404\u4fdd\u5b58\u4e86\u4e00\u4efd\u5206\u533a\u8868\u4fe1\u606f&#xff0c;\u5177\u5907\u6781\u5f3a\u7684\u81ea\u6211\u4fee\u590d\u80fd\u529b\u3002<\/li>\n<\/ul>\n<h5>2. GPT \u5206\u533a\u8868\u7ed3\u6784&#xff08;LBA \u5e03\u5c40&#xff09;<\/h5>\n<p>GPT \u5bf9\u78c1\u76d8\u7684\u6247\u533a\u7ba1\u7406\u91c7\u7528\u4e86\u903b\u8f91\u5757\u5bfb\u5740&#xff08;LBA&#xff09;\u7684\u65b9\u5f0f&#xff0c;\u5176\u7ed3\u6784\u4e25\u8c28\u4e14\u5e26\u6709\u9632\u62a4\u673a\u5236&#xff1a;<\/p>\n<ul>\n<li>LBA0&#xff08;\u4fdd\u62a4\u6027 MBR&#xff09;&#xff1a;\n<ul>\n<li>GPT \u5728\u78c1\u76d8\u7b2c\u4e00\u4e2a\u6247\u533a\u4fdd\u7559\u4e86\u517c\u5bb9\u6027\u3002\u524d 446 \u5b57\u8282\u7528\u4e8e\u5b58\u653e\u542f\u52a8\u5f15\u5bfc\u7a0b\u5e8f&#xff0c;\u540e 4 \u4e2a\u5206\u533a\u8868\u9879\u4e2d&#xff0c;\u6709\u4e00\u4e2a\u5b58\u653e\u4e86\u7279\u6b8a\u6807\u8bc6\u7b26 0xEE\u3002<\/li>\n<li>\u4f5c\u7528&#xff1a;\u5f53\u4f7f\u7528\u8001\u65e7\u3001\u4e0d\u652f\u6301 GPT \u7684\u78c1\u76d8\u7ba1\u7406\u8f6f\u4ef6\u8bfb\u53d6\u8be5\u78c1\u76d8\u65f6&#xff0c;\u7cfb\u7edf\u4f1a\u8ba4\u4e3a\u8fd9\u662f\u4e00\u4e2a\u5df2\u5206\u533a\u7684\u78c1\u76d8&#xff0c;\u4ece\u800c\u907f\u514d\u8bef\u64cd\u4f5c\u8986\u76d6\u5206\u533a\u8868&#xff0c;\u8d77\u5230\u4e86\u4fdd\u62a4\u4f5c\u7528\u3002<\/li>\n<\/ul>\n<\/li>\n<li>LBA1&#xff08;GPT \u8868\u5934\u8bb0\u5f55&#xff09;&#xff1a;\n<ul>\n<li>\u8fd9\u662f GPT \u7684\u6838\u5fc3\u5143\u6570\u636e&#xff0c;\u8bb0\u5f55\u4e86\u5206\u533a\u8868\u81ea\u8eab\u7684\u4f4d\u7f6e\u548c\u5927\u5c0f\u3001\u5907\u4efd GPT \u6240\u5728\u7684\u4f4d\u7f6e&#xff08;\u901a\u5e38\u4f4d\u4e8e\u78c1\u76d8\u6700\u540e 34 \u4e2a LBA&#xff09;&#xff0c;\u4ee5\u53ca\u5206\u533a\u8868\u7684 CRC32 \u6821\u9a8c\u7801\u3002<\/li>\n<li>\u4f5c\u7528&#xff1a;\u64cd\u4f5c\u7cfb\u7edf\u542f\u52a8\u65f6&#xff0c;\u4f1a\u901a\u8fc7\u6821\u9a8c\u7801\u5224\u65ad GPT \u4fe1\u606f\u662f\u5426\u6b63\u786e\u3002\u4e00\u65e6\u68c0\u6d4b\u5230\u635f\u574f&#xff0c;\u7cfb\u7edf\u4f1a\u7acb\u523b\u4ece\u5907\u4efd GPT \u4e2d\u6062\u590d\u6570\u636e&#xff0c;\u786e\u4fdd\u78c1\u76d8\u7ed3\u6784\u7684\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<li>LBA2 ~ LBA33&#xff08;\u5206\u533a\u8bb0\u5f55\u533a&#xff09;&#xff1a;\n<ul>\n<li>\u9ed8\u8ba4\u60c5\u51b5\u4e0b&#xff0c;\u6bcf\u4e2a LBA&#xff08;512 \u5b57\u8282&#xff09;\u53ef\u5b58\u653e 4 \u7ec4\u5206\u533a\u8bb0\u5f55\u4fe1\u606f\u3002\u56e0\u6b64&#xff0c;32 \u4e2a LBA \u6700\u5927\u53ef\u63d0\u4f9b 128 \u7ec4\u5206\u533a\u8bb0\u5f55\u3002<\/li>\n<li>\u6ce8\u610f&#xff1a;\u867d\u7136 GPT \u7406\u8bba\u4e0a\u652f\u6301 128 \u4e2a\u5206\u533a&#xff0c;\u4f46\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d&#xff0c;\u5982\u679c\u903b\u8f91\u5206\u533a\u8d85\u8fc7 120 \u4e2a&#xff0c;\u53ef\u80fd\u4f1a\u51fa\u73b0\u65e0\u6cd5\u683c\u5f0f\u5316\u4f7f\u7528\u7684\u5f02\u5e38\u60c5\u51b5\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>\u4e8c\u3001 \u78c1\u76d8\u5206\u533a\u7ba1\u7406\u5de5\u5177\u5b9e\u6218<\/h4>\n<p>\u5728 Linux \u4e2d&#xff0c;\u9488\u5bf9\u4e0d\u540c\u5206\u533a\u8868\u7c7b\u578b&#xff0c;\u7cfb\u7edf\u63d0\u4f9b\u4e86\u4e0d\u540c\u7684\u7ba1\u7406\u5de5\u5177\u3002gdisk \u4e13\u95e8\u7528\u4e8e\u7ba1\u7406 GPT \u78c1\u76d8&#xff0c;\u800c parted \u5219\u662f\u4e00\u4e2a\u540c\u65f6\u652f\u6301 MBR \u548c GPT \u7684\u5f3a\u5927\u5168\u80fd\u5de5\u5177\u3002<\/p>\n<h5>1. gdisk \u5de5\u5177\u7ba1\u7406 GPT \u78c1\u76d8<\/h5>\n<h6>1.1 \u67e5\u770b\u5206\u533a\u8868\u4e0e\u8f6c\u6362\u4e3a GPT<\/h6>\n<p>\u4f7f\u7528 gdisk -l \/dev\/sdb \u53ef\u4ee5\u67e5\u770b\u76ee\u6807\u78c1\u76d8\u7684\u5206\u533a\u8868\u72b6\u6001\u3002 \u5982\u679c\u7cfb\u7edf\u68c0\u6d4b\u5230\u78c1\u76d8\u5f53\u524d\u662f MBR \u683c\u5f0f&#xff0c;\u800c\u6211\u4eec\u9700\u8981\u5c06\u5176\u8f6c\u6362\u4e3a GPT&#xff0c;\u53ef\u4ee5\u8fdb\u5165\u4ea4\u4e92\u5f0f\u754c\u9762&#xff1a;<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># gdisk \/dev\/sdb<\/span><br \/>\nCommand <span class=\"token punctuation\">(<\/span>? <span class=\"token keyword\">for<\/span> <span class=\"token builtin class-name\">help<\/span><span class=\"token punctuation\">)<\/span>: o   <span class=\"token comment\"># \u8f93\u5165o&#xff0c;\u6e05\u7a7a\u6240\u6709\u5206\u533a&#xff0c;\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7a7a GPT \u5206\u533a\u8868<\/span><br \/>\nThis option deletes all partitions and creates a new protective MBR.<br \/>\nProceed? <span class=\"token punctuation\">(<\/span>Y\/N<span class=\"token punctuation\">)<\/span>: Y        <span class=\"token comment\"># \u786e\u8ba4\u5220\u9664\u64cd\u4f5c<\/span><br \/>\nCommand <span class=\"token punctuation\">(<\/span>? <span class=\"token keyword\">for<\/span> <span class=\"token builtin class-name\">help<\/span><span class=\"token punctuation\">)<\/span>: w   <span class=\"token comment\"># \u8f93\u5165w&#xff0c;\u5c06\u66f4\u6539\u5199\u5165\u78c1\u76d8\u5e76\u9000\u51fa<\/span><\/p>\n<p>(\u6ce8&#xff1a;\u5982\u679c\u4f60\u4e0d\u60f3\u4fdd\u5b58\u66f4\u6539&#xff0c;\u53ef\u4ee5\u8f93\u5165 q \u76f4\u63a5\u9000\u51fa&#xff0c;\u907f\u514d\u7834\u574f\u539f\u6709\u6570\u636e\u3002)<\/p>\n<h6>1.2 \u521b\u5efa\u65b0\u5206\u533a<\/h6>\n<p>\u8f6c\u6362\u5e76\u4fdd\u5b58\u540e&#xff0c;\u518d\u6b21\u8fdb\u5165 gdisk&#xff0c;\u6b64\u65f6\u4f1a\u8bc6\u522b\u5230 GPT \u65b9\u6848\u3002\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u521b\u5efa\u4e00\u4e2a 2GB \u7684\u5206\u533a&#xff1a;<\/p>\n<p>Command <span class=\"token punctuation\">(<\/span>? <span class=\"token keyword\">for<\/span> <span class=\"token builtin class-name\">help<\/span><span class=\"token punctuation\">)<\/span>: n     <span class=\"token comment\"># \u8f93\u5165n&#xff0c;\u6dfb\u52a0\u65b0\u5206\u533a<\/span><br \/>\nPartition number <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span>-128, default <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span>: \u56de\u8f66   <span class=\"token comment\"># \u4f7f\u7528\u9ed8\u8ba4\u5206\u533a\u53f71<\/span><br \/>\nFirst sector <span class=\"token punctuation\">(<\/span><span class=\"token number\">34<\/span>&#8211;<span class=\"token punctuation\">..<\/span>., default <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2048<\/span><span class=\"token punctuation\">)<\/span>: \u56de\u8f66 <span class=\"token comment\"># \u4f7f\u7528\u9ed8\u8ba4\u8d77\u59cb\u6247\u533a&#xff08;\u652f\u63014K\u5bf9\u9f50&#xff09;<\/span><br \/>\nLast sector <span class=\"token punctuation\">(<\/span><span class=\"token number\">2048<\/span>&#8211;<span class=\"token punctuation\">..<\/span>., default <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">..<\/span>.<span class=\"token punctuation\">)<\/span>: &#043;2G <span class=\"token comment\"># \u6307\u5b9a\u5206\u533a\u5927\u5c0f\u4e3a2GB<\/span><br \/>\nCurrent <span class=\"token builtin class-name\">type<\/span> is <span class=\"token string\">&#039;Linux filesystem&#039;<\/span><br \/>\nHex code or GUID <span class=\"token punctuation\">(<\/span>L to show codes, Enter <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">8300<\/span><span class=\"token punctuation\">)<\/span>: \u56de\u8f66 <span class=\"token comment\"># \u4f7f\u7528\u9ed8\u8ba4\u7684Linux filesystem (8300) \u7c7b\u578b<\/span><\/p>\n<h6>1.3 \u66f4\u6539\u5206\u533a\u540d\u79f0\u4e0e\u67e5\u770b\u8be6\u60c5<\/h6>\n<p>\u4e3a\u4e86\u4fbf\u4e8e\u8bc6\u522b&#xff0c;\u6211\u4eec\u53ef\u4ee5\u7ed9\u5206\u533a\u8bbe\u7f6e\u4e00\u4e2a\u6613\u8bfb\u7684\u540d\u79f0&#xff08;PARTLABEL&#xff09;&#xff1a;<\/p>\n<p>Command <span class=\"token punctuation\">(<\/span>? <span class=\"token keyword\">for<\/span> <span class=\"token builtin class-name\">help<\/span><span class=\"token punctuation\">)<\/span>: c     <span class=\"token comment\"># \u8f93\u5165c&#xff0c;\u66f4\u6539\u5206\u533a\u540d\u79f0<\/span><br \/>\nUsing <span class=\"token number\">1<\/span>                     <span class=\"token comment\"># \u9009\u62e9\u5206\u533a\u53f71<\/span><br \/>\nEnter name: data01          <span class=\"token comment\"># \u8f93\u5165\u65b0\u7684\u5206\u533a\u540d\u79f0<\/span><\/p>\n<p>\u5b8c\u6210\u521b\u5efa\u548c\u547d\u540d\u540e&#xff0c;\u53ef\u4ee5\u7528 p \u67e5\u770b\u5206\u533a\u8868&#xff0c;\u6216\u8005\u7528 i \u67e5\u770b\u7279\u5b9a\u5206\u533a\u7684\u8be6\u7ec6 GUID \u4fe1\u606f&#xff1a;<\/p>\n<p>Command <span class=\"token punctuation\">(<\/span>? <span class=\"token keyword\">for<\/span> <span class=\"token builtin class-name\">help<\/span><span class=\"token punctuation\">)<\/span>: i     <span class=\"token comment\"># \u67e5\u770b\u5206\u533a1\u8be6\u7ec6\u4fe1\u606f<\/span><br \/>\nUsing <span class=\"token number\">1<\/span><br \/>\nPartition GUID code: 0FC63DAF-8483-4772-8E79-3D69D8477DE4 <span class=\"token punctuation\">(<\/span>Linux filesystem<span class=\"token punctuation\">)<\/span><br \/>\nPartition name: <span class=\"token string\">&#039;data01&#039;<\/span><\/p>\n<h6>1.4 \u5220\u9664\u5206\u533a<\/h6>\n<p>\u5982\u679c\u9700\u8981\u6e05\u7406\u5206\u533a&#xff0c;\u4f7f\u7528 d \u547d\u4ee4\u5373\u53ef&#xff1a;<\/p>\n<p>Command <span class=\"token punctuation\">(<\/span>? <span class=\"token keyword\">for<\/span> <span class=\"token builtin class-name\">help<\/span><span class=\"token punctuation\">)<\/span>: d     <span class=\"token comment\"># \u5220\u9664\u5206\u533a<\/span><br \/>\nUsing <span class=\"token number\">1<\/span>                     <span class=\"token comment\"># \u9009\u62e9\u8981\u5220\u9664\u7684\u5206\u533a\u53f7<\/span><\/p>\n<p>\u5220\u9664\u5b8c\u6210\u540e&#xff0c;\u52a1\u5fc5\u8f93\u5165 w \u4fdd\u5b58\u5e76\u9000\u51fa\u3002<\/p>\n<h5>2. wipefs \u5de5\u5177&#xff1a;\u5f7b\u5e95\u6e05\u9664\u78c1\u76d8\u5143\u6570\u636e<\/h5>\n<p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b&#xff0c;\u78c1\u76d8\u4e0a\u6b8b\u7559\u7684\u65e7\u5206\u533a\u8868\u6216\u6587\u4ef6\u7cfb\u7edf\u7b7e\u540d\u4f1a\u5bfc\u81f4\u65b0\u7684\u5206\u533a\u64cd\u4f5c\u5931\u8d25\u3002\u6b64\u65f6\u53ef\u4ee5\u4f7f\u7528 wipefs \u5de5\u5177\u5f7b\u5e95\u6e05\u9664\u8fd9\u4e9b\u5143\u6570\u636e\u3002<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u78c1\u76d8\u4e0a\u73b0\u6709\u7684\u5206\u533a\u8868\u7b7e\u540d<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># wipefs \/dev\/sdb<\/span><\/p>\n<p><span class=\"token comment\"># \u6e05\u9664\u672a\u6302\u8f7d\u78c1\u76d8\u7684\u6240\u6709\u5206\u533a\u8868\u4fe1\u606f&#xff08;\u5373\u91cd\u7f6e\u4e3a\u7a7a\u767d\u78c1\u76d8&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># wipefs -a \/dev\/sdb<\/span><\/p>\n<p><span class=\"token comment\"># \u5982\u679c\u7cfb\u7edf\u63d0\u793a\u6709\u4fdd\u62a4&#xff0c;\u53ef\u4f7f\u7528 -f \u5f3a\u5236\u6e05\u9664<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># wipefs -fa \/dev\/sdb<\/span><\/p>\n<p>\u26a0\ufe0f \u6ce8\u610f&#xff1a;\u8be5\u64cd\u4f5c\u975e\u5e38\u5371\u9669&#xff0c;\u4f1a\u5c06\u786c\u76d8\u4e0a\u7684\u6240\u6709\u5206\u533a\u8bb0\u5f55\u6e05\u7a7a&#xff0c;\u8bf7\u52a1\u5fc5\u786e\u8ba4\u6570\u636e\u5df2\u5907\u4efd\u6216\u786e\u8ba4\u4e0d\u9700\u8981\u4fdd\u7559\u539f\u6709\u6570\u636e\u540e\u518d\u6267\u884c\u3002<\/p>\n<h5>3. parted \u5de5\u5177&#xff1a;\u5168\u80fd\u5206\u533a\u7ba1\u7406\u5927\u5e08<\/h5>\n<p>parted \u53ef\u4ee5\u4ea4\u4e92\u5f0f\u6216\u975e\u4ea4\u4e92\u5f0f\u5730\u64cd\u4f5c MBR&#xff08;msdos&#xff09;\u548c GPT \u78c1\u76d8\u3002<\/p>\n<h6>3.1 \u8bbe\u7f6e\u5355\u4f4d\u4e0e\u67e5\u770b\u5206\u533a\u8868<\/h6>\n<p>\u64cd\u4f5c\u7684\u7b2c\u4e00\u6b65\u901a\u5e38\u662f\u5c06\u9ed8\u8ba4\u7684 MB&#xff08;1000\u8fdb\u5236&#xff09;\u5355\u4f4d\u6539\u4e3a MiB&#xff08;1024\u8fdb\u5236&#xff09;&#xff0c;\u4ee5\u4fdd\u8bc1\u6247\u533a\u8fb9\u754c\u5b8c\u7f8e 4K \u5bf9\u9f50&#xff1a;<\/p>\n<p><span class=\"token punctuation\">(<\/span>parted<span class=\"token punctuation\">)<\/span> unit MiB          <span class=\"token comment\"># \u8bbe\u7f6e\u5355\u4f4d\u4e3a MiB<\/span><br \/>\n<span class=\"token punctuation\">(<\/span>parted<span class=\"token punctuation\">)<\/span> print             <span class=\"token comment\"># \u67e5\u770b\u5f53\u524d\u5206\u533a\u8868<\/span><\/p>\n<h6>3.2 \u7ba1\u7406 MBR (msdos) \u78c1\u76d8<\/h6>\n<p>\u2460 \u521b\u5efa\u5206\u533a\u8868\u4e0e\u5206\u533a<\/p>\n<p><span class=\"token punctuation\">(<\/span>parted<span class=\"token punctuation\">)<\/span> mklabel msdos              <span class=\"token comment\"># \u8bbe\u7f6e\u4e3a MBR \u683c\u5f0f<\/span><br \/>\n<span class=\"token punctuation\">(<\/span>parted<span class=\"token punctuation\">)<\/span> mkpart primary xfs <span class=\"token number\">1<\/span> <span class=\"token number\">2049<\/span>  <span class=\"token comment\"># \u521b\u5efa\u4e3b\u5206\u533a&#xff0c;\u8d77\u59cb1MiB&#xff0c;\u7ed3\u675f2049MiB&#xff08;\u5927\u5c0f2GiB&#xff09;<\/span><\/p>\n<p>\u2461 \u6269\u5c55\u5206\u533a\u5bb9\u91cf<\/p>\n<p><span class=\"token punctuation\">(<\/span>parted<span class=\"token punctuation\">)<\/span> resizepart <span class=\"token number\">1<\/span> <span class=\"token number\">4097<\/span>          <span class=\"token comment\"># \u5c06\u5206\u533a1\u7684\u7ed3\u675f\u4f4d\u7f6e\u6269\u5c55\u52304097MiB&#xff08;\u5373\u6269\u5927\u52304GiB&#xff09;<\/span><\/p>\n<p>(\u6ce8&#xff1a;\u5728 parted \u4e2d\u8c03\u6574\u5206\u533a\u5927\u5c0f\u4f1a\u7acb\u5373\u751f\u6548&#xff0c;\u65e0\u9700\u50cf\u4f20\u7edf fdisk \u90a3\u6837\u5220\u9664\u91cd\u5efa\u3002)<\/p>\n<p>\u2462 \u5220\u9664\u5206\u533a<\/p>\n<p><span class=\"token punctuation\">(<\/span>parted<span class=\"token punctuation\">)<\/span> <span class=\"token function\">rm<\/span> <span class=\"token number\">1<\/span>                       <span class=\"token comment\"># \u5220\u9664\u5206\u533a1<\/span><\/p>\n<h6>3.3 \u7ba1\u7406 GPT \u78c1\u76d8<\/h6>\n<p>parted \u7ba1\u7406 GPT \u78c1\u76d8\u7684\u6b65\u9aa4\u4e0e MBR \u57fa\u672c\u4e00\u81f4&#xff0c;\u4ec5\u5728\u521b\u5efa\u5206\u533a\u548c\u8bbe\u7f6e\u6807\u7b7e\u65f6\u6709\u7ec6\u5fae\u5dee\u522b&#xff1a;<\/p>\n<p><span class=\"token punctuation\">(<\/span>parted<span class=\"token punctuation\">)<\/span> mklabel gpt                <span class=\"token comment\"># \u8bbe\u7f6e\u4e3a GPT \u683c\u5f0f<\/span><br \/>\n<span class=\"token punctuation\">(<\/span>parted<span class=\"token punctuation\">)<\/span> mkpart data01 xfs <span class=\"token number\">1<\/span> <span class=\"token number\">2049<\/span>   <span class=\"token comment\"># \u521b\u5efa\u540d\u4e3a data01 \u7684 xfs \u5206\u533a<\/span><\/p>\n<p>\u6269\u5c55\u548c\u5220\u9664\u64cd\u4f5c\u4e0e MBR \u4e0b\u7684 resizepart \u548c rm \u547d\u4ee4\u5b8c\u5168\u76f8\u540c\u3002<\/p>\n<h6>3.4 \u975e\u4ea4\u4e92\u5f0f\u64cd\u4f5c&#xff08;\u5355\u884c\u547d\u4ee4&#xff09;<\/h6>\n<p>parted \u652f\u6301\u76f4\u63a5\u5728\u4e00\u884c\u547d\u4ee4\u884c\u4e2d\u5b8c\u6210\u64cd\u4f5c&#xff0c;\u975e\u5e38\u9002\u5408\u7f16\u5199\u81ea\u52a8\u5316\u811a\u672c&#xff1a;<\/p>\n<p><span class=\"token comment\"># \u521b\u5efa\u4e00\u4e2a msdos \u5206\u533a\u8868\u7684\u4e3b\u5206\u533a<\/span><br \/>\n<span class=\"token function\">parted<\/span> \/dev\/sdb unit MiB mkpart primary <span class=\"token number\">1<\/span> <span class=\"token number\">2049<\/span><\/p>\n<p><span class=\"token comment\"># \u521b\u5efa\u4e00\u4e2a gpt \u5206\u533a\u8868\u7684\u5206\u533a<\/span><br \/>\n<span class=\"token function\">parted<\/span> \/dev\/sdb unit MiB mkpart data01 xfs <span class=\"token number\">1<\/span> <span class=\"token number\">2049<\/span><\/p>\n<p><span class=\"token comment\"># \u5220\u9664\u5206\u533a1<\/span><br \/>\n<span class=\"token function\">parted<\/span> \/dev\/sdb <span class=\"token function\">rm<\/span> <span class=\"token number\">1<\/span><\/p>\n<h4>\u4e09\u3001 \u6587\u4ef6\u7cfb\u7edf\u6301\u4e45\u5316\u6302\u8f7d&#xff08;\/etc\/fstab&#xff09;<\/h4>\n<p>\u4f7f\u7528 mount \u547d\u4ee4\u6302\u8f7d\u7684\u5206\u533a\u5728\u670d\u52a1\u5668\u91cd\u542f\u540e\u4f1a\u5931\u6548\u3002\u4e3a\u4e86\u5b9e\u73b0\u5f00\u673a\u81ea\u52a8\u6302\u8f7d&#xff0c;\u9700\u8981\u5c06\u914d\u7f6e\u5199\u5165 \/etc\/fstab \u6587\u4ef6\u3002<\/p>\n<h5>1. \/etc\/fstab \u516d\u5b57\u6bb5\u8be6\u89e3<\/h5>\n<p>\u8be5\u6587\u4ef6\u7684\u6bcf\u4e00\u884c\u4ee3\u8868\u4e00\u4e2a\u6302\u8f7d\u914d\u7f6e&#xff0c;\u4ee5\u7a7a\u683c\u5206\u9694&#xff0c;\u5305\u542b 6 \u4e2a\u5b57\u6bb5&#xff1a;<\/p>\n<li>\u8bbe\u5907&#xff08;Device&#xff09;&#xff1a;\u63a8\u8350\u4f7f\u7528 UUID&#xff08;\u901a\u8fc7 blkid \u547d\u4ee4\u83b7\u53d6&#xff09;&#xff0c;\u4e0d\u5efa\u8bae\u4f7f\u7528 \/dev\/sdb1 \u8fd9\u79cd\u8bbe\u5907\u540d&#xff0c;\u907f\u514d\u56e0\u78c1\u76d8\u63d2\u62d4\u987a\u5e8f\u6539\u53d8\u800c\u5bfc\u81f4\u5f00\u673a\u6302\u8f7d\u5931\u8d25\u3002<\/li>\n<li>\u6302\u8f7d\u70b9&#xff08;Mount point&#xff09;&#xff1a;\u5fc5\u987b\u662f\u4e00\u4e2a\u5df2\u5b58\u5728\u7684\u7a7a\u76ee\u5f55&#xff08;\u5982 \/data01&#xff09;\u3002<\/li>\n<li>\u6587\u4ef6\u7cfb\u7edf\u7c7b\u578b&#xff08;File system type&#xff09;&#xff1a;\u4f8b\u5982 xfs\u3001ext4\u3002<\/li>\n<li>\u6302\u8f7d\u9009\u9879&#xff08;Mount options&#xff09;&#xff1a;\u901a\u5e38\u8bbe\u7f6e\u4e3a defaults&#xff08;\u5305\u542b\u8bfb\u5199\u3001\u5f02\u6b65\u7b49\u9ed8\u8ba4\u7279\u6027&#xff09;\u3002<\/li>\n<li>dump \u5907\u4efd\u6807\u8bb0&#xff1a;\u4e00\u822c\u4e3a 0&#xff0c;\u8868\u793a\u4e0d\u5907\u4efd\u3002<\/li>\n<li>fsck \u68c0\u67e5\u987a\u5e8f&#xff1a;\u51b3\u5b9a\u5f00\u673a\u65f6\u662f\u5426\u8fd0\u884c\u6587\u4ef6\u7cfb\u7edf\u68c0\u67e5\u3002\n<ul>\n<li>0&#xff1a;\u4e0d\u68c0\u67e5&#xff08;XFS \u6587\u4ef6\u7cfb\u7edf\u63a8\u8350\u8bbe\u4e3a 0&#xff0c;\u56e0\u4e3a XFS \u6709\u81ea\u6709\u7684\u65e5\u5fd7\u673a\u5236&#xff09;\u3002<\/li>\n<li>1&#xff1a;\u4f18\u5148\u68c0\u67e5&#xff08;\u901a\u5e38\u4ec5\u7528\u4e8e\u6839\u5206\u533a \/&#xff09;\u3002<\/li>\n<li>2&#xff1a;\u6309\u987a\u5e8f\u68c0\u67e5&#xff08;\u7528\u4e8e\u5176\u4ed6 ext4 \u6587\u4ef6\u7cfb\u7edf\u5206\u533a&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<h5>2. \u5b9e\u6218\u914d\u7f6e\u4e0e\u6d4b\u8bd5<\/h5>\n<p><span class=\"token comment\"># 1. \u83b7\u53d6 UUID<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># blkid \/dev\/sdb1<\/span><br \/>\n\/dev\/sdb1: <span class=\"token assign-left variable\">UUID<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;f5c35f10-0274-45af-b044-73694989fe01&#034;<\/span> <span class=\"token assign-left variable\">TYPE<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;xfs&#034;<\/span><\/p>\n<p><span class=\"token comment\"># 2. \u521b\u5efa\u6302\u8f7d\u70b9\u5e76\u7f16\u8f91 fstab<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mkdir \/data01<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vim \/etc\/fstab<\/span><br \/>\n<span class=\"token comment\"># \u5728\u6587\u4ef6\u672b\u5c3e\u8ffd\u52a0\u4ee5\u4e0b\u5185\u5bb9&#xff08;\u6ce8\u610f\u5fc5\u987b\u7528\u5236\u8868\u7b26\u6216\u7a7a\u683c\u6b63\u786e\u9694\u5f00&#xff09;&#xff1a;<\/span><br \/>\n<span class=\"token assign-left variable\">UUID<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;f5c35f10-0274-45af-b044-73694989fe01&#034;<\/span> \/data01 xfs defaults <span class=\"token number\">0<\/span> <span class=\"token number\">0<\/span><\/p>\n<p><span class=\"token comment\"># 3. \u7acb\u5373\u6d4b\u8bd5\u6302\u8f7d&#xff08;\u65e0\u9700\u91cd\u542f\u670d\u52a1\u5668&#xff01;&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mount \/data01<\/span><br \/>\n<span class=\"token comment\"># \u6216\u8005\u4f7f\u7528 mount -a \u6d4b\u8bd5\u6240\u6709 fstab \u6761\u76ee\u7684\u6b63\u786e\u6027<\/span><\/p>\n<p><span class=\"token comment\"># 4. \u9a8c\u8bc1<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># df -h \/data01<\/span><\/p>\n<p>\u26a0\ufe0f \u91cd\u8981\u63d0\u9192&#xff1a;\u5728\u6267\u884c mount \/data01 \u6216\u91cd\u542f\u670d\u52a1\u5668\u4e4b\u524d&#xff0c;\u52a1\u5fc5\u786e\u8ba4 \/etc\/fstab \u914d\u7f6e\u65e0\u8bed\u6cd5\u9519\u8bef\u3002\u5982\u679c\u914d\u7f6e\u9519\u8bef&#xff0c;\u53ef\u80fd\u5bfc\u81f4\u7cfb\u7edf\u5f00\u673a\u5361\u6b7b\u5728\u6587\u4ef6\u7cfb\u7edf\u68c0\u67e5\u9636\u6bb5\u800c\u65e0\u6cd5\u6b63\u5e38\u5f15\u5bfc\u3002<\/p>\n<h4>\u56db\u3001 \u6587\u4ef6\u7cfb\u7edf\u7a7a\u95f4\u4e0d\u8db3\u7efc\u5408\u6392\u969c<\/h4>\n<p>\u5728\u8fd0\u7ef4\u8fc7\u7a0b\u4e2d&#xff0c;\u201c\u78c1\u76d8\u5199\u6ee1\u201d\u662f\u9ad8\u9891\u6545\u969c\u3002\u9488\u5bf9\u4e0d\u540c\u7684\u573a\u666f&#xff0c;\u6392\u67e5\u4e0e\u89e3\u51b3\u65b9\u6cd5\u622a\u7136\u4e0d\u540c\u3002<\/p>\n<h5>\u573a\u666f 1&#xff1a;\u5927\u91cf\u7684\u5927\u6587\u4ef6\u5360\u7528\u7a7a\u95f4<\/h5>\n<p>\u73b0\u8c61&#xff1a;df -h \u663e\u793a\u8be5\u5206\u533a\u5229\u7528\u7387\u5df2\u8fbe\u5230 100%&#xff0c;\u4e14\u7cfb\u7edf\u54cd\u5e94\u53d8\u6162\u3002 \u89e3\u51b3\u7b56\u7565&#xff1a;\u4f7f\u7528 find \u6216 du \u7ec4\u5408\u547d\u4ee4\u5feb\u901f\u5b9a\u4f4d\u5927\u6587\u4ef6\u5e76\u5220\u9664\u3002<\/p>\n<p><span class=\"token comment\"># \u76f4\u63a5\u67e5\u627e\u5927\u4e8e100M\u7684\u6587\u4ef6<\/span><br \/>\n<span class=\"token function\">find<\/span> \/myapp-1\/ <span class=\"token parameter variable\">-size<\/span> &#043;100M<br \/>\n\/myapp-1\/etc\/bigfile<\/p>\n<p><span class=\"token comment\"># \u6216\u8005\u9010\u5c42\u8fdb\u5165\u76ee\u5f55&#xff0c;\u5229\u7528 du \u548c sort \u627e\u51fa\u6700\u5927\u76ee\u5f55<\/span><br \/>\n<span class=\"token function\">du<\/span> <span class=\"token parameter variable\">-sk<\/span> \/myapp-1\/* <span class=\"token operator\">|<\/span> <span class=\"token function\">sort<\/span> <span class=\"token parameter variable\">-n<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">tail<\/span> <span class=\"token parameter variable\">-2<\/span><\/p>\n<p>\u5b9a\u4f4d\u540e\u76f4\u63a5 rm -f \u5220\u9664\u5373\u53ef\u3002<\/p>\n<h5>\u573a\u666f 2&#xff1a;\u5220\u9664\u6587\u4ef6\u540e&#xff0c;\u7a7a\u95f4\u6ca1\u6709\u91ca\u653e&#xff08;\u7ecf\u5178\u9677\u9631&#xff09;<\/h5>\n<p>\u73b0\u8c61&#xff1a;\u6267\u884c rm -f \u5220\u9664\u4e86\u4e00\u4e2a 2GB \u7684\u65e5\u5fd7\u6587\u4ef6&#xff0c;\u4f46 df -h \u663e\u793a\u4f9d\u7136 100% \u6ee1\u3002 \u539f\u56e0&#xff1a;\u8be5\u6587\u4ef6\u867d\u7136\u4ece\u76ee\u5f55\u4e2d\u79fb\u9664\u4e86&#xff0c;\u4f46\u4ecd\u6709\u8fdb\u7a0b&#xff08;\u5982 tail -f \u6216\u7a0b\u5e8f\u8fdb\u7a0b&#xff09;\u6b63\u5728\u6301\u7eed\u6253\u5f00\u5e76\u5199\u5165\u8be5\u6587\u4ef6\u3002Linux \u4e0d\u4f1a\u91ca\u653e\u88ab\u6253\u5f00\u6587\u4ef6\u5360\u7528\u7684\u78c1\u76d8\u5757&#xff0c;\u76f4\u5230\u8be5\u8fdb\u7a0b\u5f7b\u5e95\u9000\u51fa\u3002 \u89e3\u51b3\u65b9\u6cd5&#xff1a;\u4f7f\u7528 lsof \u67e5\u627e\u88ab\u5220\u9664\u4f46\u4ecd\u88ab\u5360\u7528\u7684\u6587\u4ef6&#xff0c;\u5e76\u7ec8\u6b62\u8be5\u8fdb\u7a0b\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lsof |grep delete |grep \/myapp-1<\/span><br \/>\n<span class=\"token function\">tail<\/span>      <span class=\"token number\">1654<\/span> root    3r   REG  <span class=\"token number\">8,17<\/span> <span class=\"token number\">2061565952<\/span> \/myapp-1\/etc\/bigfile <span class=\"token punctuation\">(<\/span>deleted<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># kill 1654<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># df -h \/myapp-1\/<\/span><br \/>\n<span class=\"token comment\"># \u7a7a\u95f4\u7acb\u5373\u91ca\u653e&#xff01;<\/span><\/p>\n<p>&#x1f4a1; \u5efa\u8bae&#xff1a;\u5728\u65e5\u5e38\u6e05\u7406\u5927\u6587\u4ef6\u65f6&#xff0c;\u53ef\u4ee5\u5148\u6267\u884c &gt; \/myapp-1\/etc\/bigfile \u91cd\u5b9a\u5411\u6e05\u7a7a\u6587\u4ef6\u5185\u5bb9&#xff0c;\u518d\u6267\u884c rm \u5220\u9664&#xff0c;\u8fd9\u6837\u4ece\u6e90\u5934\u907f\u514d\u4e86\u8fdb\u7a0b\u5360\u7528\u95ee\u9898\u3002<\/p>\n<h5>\u573a\u666f 3&#xff1a;inode \u8017\u5c3d&#xff08;\u5927\u91cf\u5c0f\u6587\u4ef6\u5360\u6ee1&#xff09;<\/h5>\n<p>\u73b0\u8c61&#xff1a;df -h \u663e\u793a\u8fd8\u6709\u5927\u91cf\u5269\u4f59\u7a7a\u95f4&#xff08;\u5982 1.8M \u5df2\u7528 \/ 905M \u53ef\u7528&#xff09;&#xff0c;\u4f46\u521b\u5efa\u65b0\u6587\u4ef6\u65f6\u5374\u62a5\u9519 \u8bbe\u5907\u4e0a\u6ca1\u6709\u7a7a\u95f4\u3002 \u539f\u56e0&#xff1a;\u6587\u4ef6\u7cfb\u7edf\u7684**\u7d22\u5f15\u8282\u70b9&#xff08;Inode&#xff09;**\u88ab\u5927\u91cf 1KB \u7684\u7a7a\u6587\u4ef6\u6216\u5c0f\u6587\u4ef6\u8017\u5c3d\u4e86\u3002Inode \u7528\u4e8e\u5b58\u653e\u6587\u4ef6\u7684\u5143\u6570\u636e&#xff08;\u5982\u6743\u9650\u3001\u4f4d\u7f6e\u3001\u65f6\u95f4&#xff09;&#xff0c;\u6bcf\u4e2a\u6587\u4ef6\u5fc5\u7136\u5360\u7528 1 \u4e2a Inode\u3002\u5f53 Inode \u6570\u91cf\u8fbe\u5230\u4e0a\u9650\u65f6&#xff0c;\u5373\u4f7f\u78c1\u76d8\u6709\u7a7a\u95f4&#xff0c;\u4e5f\u65e0\u6cd5\u521b\u5efa\u65b0\u6587\u4ef6\u3002 \u6392\u67e5\u4e0e\u89e3\u51b3&#xff1a;<\/p>\n<p><span class=\"token comment\"># \u4f7f\u7528 df -hi \u67e5\u770b inode \u4f7f\u7528\u60c5\u51b5<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># df -hi \/myapp-2<\/span><br \/>\n\u6587\u4ef6\u7cfb\u7edf     Inodes IUsed IFree IUse% Mounted on<br \/>\n\/dev\/sdb2         64K   64K     <span class=\"token number\">0<\/span>  <span class=\"token number\">100<\/span>% \/myapp-2<\/p>\n<p><span class=\"token comment\"># \u89e3\u51b3\u65b9\u6cd5\u4e00&#xff1a;\u76f4\u63a5\u5220\u9664\u4e0d\u9700\u8981\u7684\u6d77\u91cf\u5c0f\u6587\u4ef6<\/span><br \/>\n<span class=\"token function\">rm<\/span> <span class=\"token parameter variable\">-f<\/span> \/myapp-2\/file-0*<\/p>\n<p><span class=\"token comment\"># \u89e3\u51b3\u65b9\u6cd5\u4e8c&#xff1a;\u5c06\u5927\u91cf\u5c0f\u6587\u4ef6\u5408\u5e76\u4e3a\u4e00\u4e2a\u5927\u6587\u4ef6&#xff08;\u5f52\u6863&#xff09;<\/span><br \/>\n<span class=\"token function\">cat<\/span> \/myapp-2\/file-<span class=\"token punctuation\">{<\/span>00001<span class=\"token punctuation\">..<\/span><span class=\"token number\">10000<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token operator\">&gt;<\/span> file-00001<\/p>\n<h3>RAID\u5b58\u50a8\u6280\u672f<\/h3>\n<h4>\u4e00\u3001 RAID \u6280\u672f\u6982\u8ff0<\/h4>\n<h5>1.1 RAID \u7684\u5386\u53f2\u4e0e\u5b9a\u4e49<\/h5>\n<p>RAID \u7684\u6982\u5ff5\u6700\u65e9\u8d77\u6e90\u4e8e 1988 \u5e74&#xff0c;\u7531\u7f8e\u56fd\u52a0\u5dde\u5927\u5b66\u4f2f\u514b\u5229\u5206\u6821\u7684 D. A. Patterson \u6559\u6388\u7b49\u4eba\u5728\u8bba\u6587\u300aA Case of Redundant Array of Inexpensive Disks\u300b\u4e2d\u9996\u6b21\u63d0\u51fa&#xff0c;\u5176\u5168\u79f0\u4e3a \u5ec9\u4ef7\u78c1\u76d8\u5197\u4f59\u9635\u5217&#xff08;Redundant Array of Inexpensive Disks&#xff09;\u3002\u5f53\u65f6\u5927\u5bb9\u91cf\u78c1\u76d8\u6781\u5176\u6602\u8d35&#xff0c;RAID \u7684\u57fa\u672c\u601d\u60f3\u662f\u5c06\u591a\u5757\u5bb9\u91cf\u8f83\u5c0f\u3001\u76f8\u5bf9\u5ec9\u4ef7\u7684\u78c1\u76d8\u7ec4\u5408\u8d77\u6765&#xff0c;\u4ee5\u8f83\u4f4e\u7684\u6210\u672c\u83b7\u5f97\u4e0e\u6602\u8d35\u5927\u5bb9\u91cf\u78c1\u76d8\u76f8\u5f53\u7684\u5bb9\u91cf\u3001\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n<p>\u968f\u7740\u786c\u4ef6\u6210\u672c\u7684\u964d\u4f4e&#xff0c;\u201c\u5ec9\u4ef7\u201d\u4e00\u8bcd\u5df2\u5931\u53bb\u5b9e\u9645\u610f\u4e49\u3002RAID \u54a8\u8be2\u59d4\u5458\u4f1a&#xff08;RAB&#xff09;\u51b3\u5b9a\u7528\u201c\u72ec\u7acb\u201d\u66ff\u4ee3\u201c\u5ec9\u4ef7\u201d&#xff0c;\u56e0\u6b64 RAID \u73b0\u5728\u7684\u6b63\u5f0f\u540d\u79f0\u53d8\u4e3a \u72ec\u7acb\u78c1\u76d8\u5197\u4f59\u9635\u5217&#xff08;Redundant Array of Independent Disks&#xff09;\u3002\u5c3d\u7ba1\u540d\u79f0\u6539\u53d8&#xff0c;\u4f46\u5176\u6838\u5fc3\u6280\u672f\u601d\u60f3\u5e76\u672a\u53d1\u751f\u5b9e\u8d28\u53d8\u5316\u3002<\/p>\n<h5>1.2 RAID \u7684\u5b9e\u73b0\u65b9\u5f0f<\/h5>\n<p>\u4ece\u5e95\u5c42\u5b9e\u73b0\u89d2\u5ea6\u770b&#xff0c;RAID \u4e3b\u8981\u5206\u4e3a\u4ee5\u4e0b\u4e09\u79cd\u7c7b\u578b&#xff1a;<\/p>\n<ul>\n<li>\u8f6f RAID&#xff1a;\u6240\u6709 RAID \u7684\u903b\u8f91\u529f\u80fd&#xff08;\u5305\u62ec\u6570\u636e\u6761\u5e26\u5316\u3001\u955c\u50cf\u3001\u6821\u9a8c\u8ba1\u7b97\u7b49&#xff09;\u5747\u7531\u64cd\u4f5c\u7cfb\u7edf\u548c CPU \u5b8c\u6210\u3002\u5b83\u6ca1\u6709\u72ec\u7acb\u7684 RAID \u63a7\u5236\u82af\u7247\u548c I\/O \u5904\u7406\u82af\u7247&#xff0c;\u56e0\u6b64\u6548\u7387\u6700\u4f4e&#xff0c;\u4f46\u6210\u672c\u6781\u4f4e&#xff0c;\u65e0\u9700\u989d\u5916\u786c\u4ef6\u652f\u6301\u3002<\/li>\n<li>\u786c RAID&#xff1a;\u914d\u5907\u4e86\u4e13\u95e8\u7684 RAID \u63a7\u5236\u82af\u7247\u3001I\/O \u5904\u7406\u82af\u7247\u4ee5\u53ca\u72ec\u7acb\u7684\u9635\u5217\u7f13\u5b58\u3002\u6240\u6709\u7684\u6570\u636e\u8fd0\u7b97\u90fd\u7531\u786c\u4ef6\u72ec\u7acb\u5b8c\u6210&#xff0c;\u5b8c\u5168\u4e0d\u5360\u7528\u670d\u52a1\u5668\u7684 CPU \u8d44\u6e90&#xff0c;\u6027\u80fd\u6781\u4f73&#xff0c;\u4f46\u786c\u4ef6\u6210\u672c\u5f88\u9ad8\u3002<\/li>\n<li>\u8f6f\u786c\u6df7\u5408 RAID&#xff1a;\u5177\u5907\u4e13\u95e8\u7684 RAID \u63a7\u5236\u82af\u7247&#xff0c;\u4f46\u7f3a\u4e4f\u72ec\u7acb\u7684 I\/O \u5904\u7406\u82af\u7247&#xff0c;\u90e8\u5206\u63a7\u5236\u903b\u8f91\u4ecd\u9700\u8981 CPU \u914d\u5408\u9a71\u52a8\u7a0b\u5e8f\u6765\u5b8c\u6210\u3002\u5176\u6027\u80fd\u548c\u6210\u672c\u4ecb\u4e8e\u8f6f RAID \u548c\u786c RAID \u4e4b\u95f4\u3002<\/li>\n<\/ul>\n<hr \/>\n<h4>\u4e8c\u3001 \u6838\u5fc3 RAID \u7ea7\u522b\u8be6\u89e3<\/h4>\n<p>RAID \u4e3b\u8981\u901a\u8fc7\u6570\u636e\u6761\u5e26\u5316&#xff08;Striping&#xff09;\u3001**\u955c\u50cf&#xff08;Mirroring&#xff09;\u548c\u6570\u636e\u6821\u9a8c&#xff08;Parity&#xff09;**\u4e09\u79cd\u6280\u672f\u6765\u83b7\u53d6\u9ad8\u6027\u80fd\u3001\u53ef\u9760\u6027\u548c\u5bb9\u9519\u80fd\u529b\u3002\u6839\u636e\u8fd9\u4e9b\u6280\u672f\u7684\u4e0d\u540c\u7ec4\u5408&#xff0c;\u884d\u751f\u51fa\u4e86\u591a\u79cd RAID \u7ea7\u522b\u3002\u4e1a\u754c\u516c\u8ba4\u7684\u6807\u51c6\u4e3b\u8981\u6709 RAID 0~RAID 5&#xff0c;\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u4f7f\u7528\u6700\u5e7f\u7684\u662f RAID 0\u3001RAID 1\u3001RAID 5\u3001RAID 6 \u548c RAID 10\u3002<\/p>\n<h5>2.1 RAID 0&#xff08;\u6761\u5e26\u5316&#xff09;<\/h5>\n<ul>\n<li>\u539f\u7406&#xff1a;\u5c06\u6570\u636e\u5206\u5272\u6210\u56fa\u5b9a\u5927\u5c0f\u7684\u5757&#xff0c;\u5e76\u4f9d\u6b21\u5206\u5e03\u5728\u591a\u5757\u78c1\u76d8\u4e0a&#xff0c;\u901a\u8fc7\u5e76\u884c\u8bfb\u5199\u63d0\u9ad8\u6027\u80fd\u3002\u4e0d\u63d0\u4f9b\u4efb\u4f55\u6570\u636e\u5197\u4f59\u3002<\/li>\n<li>\u4f18\u70b9&#xff1a;\u6027\u80fd\u6781\u9ad8&#xff0c;\u8bfb\u5199\u901f\u5ea6\u5feb&#xff1b;\u6ca1\u6709\u5bb9\u91cf\u5197\u4f59&#xff0c;\u7a7a\u95f4\u5229\u7528\u7387 100%\u3002<\/li>\n<li>\u7f3a\u70b9&#xff1a;\u6ca1\u6709\u5bb9\u9519\u80fd\u529b&#xff0c;\u4e00\u65e6\u4efb\u610f\u4e00\u5757\u78c1\u76d8\u635f\u574f&#xff0c;\u6574\u4e2a\u9635\u5217\u7684\u6570\u636e\u5168\u90e8\u4e22\u5931\u3002<\/li>\n<li>\u9002\u7528\u573a\u666f&#xff1a;\u89c6\u9891\u7f16\u8f91\u3001\u5927\u578b\u6570\u636e\u5e93\u6216\u5b9e\u65f6\u6d41\u5a92\u4f53\u7b49\u5bf9\u6027\u80fd\u8981\u6c42\u6781\u9ad8\u3001\u4f46\u6570\u636e\u53ef\u4e34\u65f6\u6062\u590d\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n<h5>2.2 RAID 1&#xff08;\u955c\u50cf&#xff09;<\/h5>\n<ul>\n<li>\u539f\u7406&#xff1a;\u5c06\u6570\u636e\u5b8c\u5168\u590d\u5236\u5230\u4e24\u5757\u6216\u4ee5\u4e0a\u7684\u78c1\u76d8\u4e0a\u3002\u5199\u5165\u65f6\u6570\u636e\u540c\u65f6\u5199\u5165\u6240\u6709\u78c1\u76d8&#xff0c;\u8bfb\u53d6\u65f6\u53ef\u5e76\u884c\u4ece\u591a\u5757\u78c1\u76d8\u8bfb\u53d6\u63d0\u5347\u6027\u80fd\u3002<\/li>\n<li>\u4f18\u70b9&#xff1a;\u63d0\u4f9b 100% \u7684\u6570\u636e\u5197\u4f59&#xff0c;\u53ef\u9760\u6027\u6781\u9ad8&#xff1b;\u8bfb\u53d6\u6027\u80fd\u63d0\u5347&#xff1b;\u6545\u969c\u6062\u590d\u6781\u5176\u7b80\u5355\u3002<\/li>\n<li>\u7f3a\u70b9&#xff1a;\u78c1\u76d8\u7a7a\u95f4\u5229\u7528\u7387\u4ec5\u4e3a 50%&#xff0c;\u6210\u672c\u8f83\u9ad8&#xff1b;\u5199\u5165\u6027\u80fd\u7565\u4f4e\u4e8e\u5355\u5757\u78c1\u76d8\u3002<\/li>\n<li>\u9002\u7528\u573a\u666f&#xff1a;\u4f01\u4e1a\u8d22\u52a1\u6570\u636e\u3001\u5ba2\u6237\u4fe1\u606f\u3001\u6570\u636e\u5e93\u670d\u52a1\u5668\u7b49\u5bf9\u6570\u636e\u5b89\u5168\u8981\u6c42\u6781\u9ad8\u7684\u5173\u952e\u4e1a\u52a1\u3002<\/li>\n<\/ul>\n<h5>2.3 RAID 5&#xff08;\u5206\u5e03\u5f0f\u5947\u5076\u6821\u9a8c&#xff09;<\/h5>\n<ul>\n<li>\u539f\u7406&#xff1a;\u5c06\u6570\u636e\u6761\u5e26\u5316\u5206\u5e03\u5728\u591a\u5757\u78c1\u76d8\u4e0a&#xff0c;\u540c\u65f6\u5c06\u5947\u5076\u6821\u9a8c\u4fe1\u606f\u5747\u5300\u5206\u5e03\u5728\u6240\u6709\u78c1\u76d8\u4e0a\u3002\u5f53\u4e00\u5757\u78c1\u76d8\u6545\u969c\u65f6&#xff0c;\u53ef\u901a\u8fc7\u5269\u4f59\u7684\u5947\u5076\u6821\u9a8c\u4fe1\u606f\u8ba1\u7b97\u6062\u590d\u4e22\u5931\u7684\u6570\u636e\u3002<\/li>\n<li>\u4f18\u70b9&#xff1a;\u517c\u5177\u6027\u80fd\u548c\u6570\u636e\u5197\u4f59&#xff1b;\u4ec5\u9700\u989d\u5916\u4e00\u5757\u78c1\u76d8\u7684\u7a7a\u95f4\u4f5c\u4e3a\u5947\u5076\u6821\u9a8c&#xff0c;\u7a7a\u95f4\u5229\u7528\u7387\u8f83\u9ad8\u3002<\/li>\n<li>\u7f3a\u70b9&#xff1a;\u5199\u64cd\u4f5c\u6d89\u53ca\u6821\u9a8c\u8ba1\u7b97&#xff0c;\u5199\u5165\u6027\u80fd\u53d7\u9650&#xff1b;\u5728\u78c1\u76d8\u6545\u969c\u671f\u95f4&#xff0c;\u6570\u636e\u6062\u590d\u8fc7\u7a0b\u4e2d\u7cfb\u7edf\u6027\u80fd\u4f1a\u4e0b\u964d&#xff0c;\u4e14\u5b58\u5728\u6570\u636e\u5b8c\u6574\u6027\u98ce\u9669\u3002<\/li>\n<li>\u9002\u7528\u573a\u666f&#xff1a;\u6587\u4ef6\u670d\u52a1\u5668\u3001\u4e2d\u5c0f\u4f01\u4e1a\u6570\u636e\u5e93\u7b49\u9700\u8981\u517c\u987e\u6027\u80fd\u548c\u6570\u636e\u5b89\u5168\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n<h5>2.4 RAID 6&#xff08;\u53cc\u91cd\u5206\u5e03\u5f0f\u5947\u5076\u6821\u9a8c&#xff09;<\/h5>\n<ul>\n<li>\u539f\u7406&#xff1a;\u5728 RAID 5 \u7684\u57fa\u7840\u4e0a&#xff0c;\u589e\u52a0\u4e86\u7b2c\u4e8c\u4efd\u72ec\u7acb\u7684\u5947\u5076\u6821\u9a8c\u4fe1\u606f&#xff0c;\u5e76\u5c06\u5176\u4e5f\u5206\u5e03\u5f0f\u5b58\u50a8\u5728\u6240\u6709\u78c1\u76d8\u4e0a\u3002<\/li>\n<li>\u4f18\u70b9&#xff1a;\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7ea7\u522b\u7684\u6570\u636e\u5197\u4f59&#xff0c;\u5373\u4f7f\u540c\u65f6\u53d1\u751f\u4e24\u5757\u78c1\u76d8\u6545\u969c&#xff0c;\u6570\u636e\u4f9d\u7136\u53ef\u4ee5\u6062\u590d\u3002<\/li>\n<li>\u7f3a\u70b9&#xff1a;\u5199\u5165\u6027\u80fd\u6bd4 RAID 5 \u66f4\u4f4e&#xff0c;\u9700\u8981\u66f4\u591a\u7684\u8ba1\u7b97\u5f00\u9500&#xff1b;\u786c\u4ef6\u6210\u672c\u66f4\u9ad8\u3002<\/li>\n<li>\u9002\u7528\u573a\u666f&#xff1a;\u5927\u5bb9\u91cf\u5b58\u50a8\u7cfb\u7edf\u3001\u865a\u62df\u5316\u73af\u5883\u3001\u957f\u671f\u8fd0\u884c\u7684\u5173\u952e\u6570\u636e\u5e93\u3002<\/li>\n<\/ul>\n<h5>2.5 RAID 10&#xff08;\u6761\u5e26\u5316&#043;\u955c\u50cf&#xff09;<\/h5>\n<ul>\n<li>\u539f\u7406&#xff1a;\u7ed3\u5408\u4e86 RAID 0 \u548c RAID 1 \u7684\u4f18\u70b9\u3002\u5148\u5bf9\u6570\u636e\u8fdb\u884c\u955c\u50cf&#xff08;RAID 1&#xff09;&#xff0c;\u518d\u5bf9\u955c\u50cf\u540e\u7684\u6570\u636e\u8fdb\u884c\u6761\u5e26\u5316&#xff08;RAID 0&#xff09;\u3002\u901a\u5e38\u9700\u8981 4 \u5757\u76d8\u7ec4\u6210&#xff08;\u4e24\u4e24\u955c\u50cf&#xff0c;\u518d\u6761\u5e26&#xff09;\u3002<\/li>\n<li>\u4f18\u70b9&#xff1a;\u517c\u5177 RAID 0 \u7684\u9ad8\u6027\u80fd\u548c RAID 1 \u7684\u9ad8\u53ef\u9760\u6027&#xff1b;\u6545\u969c\u6062\u590d\u6781\u5feb&#xff0c;\u65e0\u9700\u8ba1\u7b97\u6821\u9a8c\u3002<\/li>\n<li>\u7f3a\u70b9&#xff1a;\u7a7a\u95f4\u5229\u7528\u7387\u4ec5\u4e3a 50%&#xff0c;\u6210\u672c\u9ad8\u6602\u3002<\/li>\n<li>\u9002\u7528\u573a\u666f&#xff1a;\u91d1\u878d\u4ea4\u6613\u7cfb\u7edf\u3001\u5728\u7ebf\u7535\u5546\u5e73\u53f0\u3001\u865a\u62df\u5316\u73af\u5883\u7b49\u6781\u5ea6\u4f9d\u8d56\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u7684\u6838\u5fc3\u4e1a\u52a1\u3002<\/li>\n<\/ul>\n<h5>2.6 \u590d\u5408 RAID \u7ea7\u522b&#xff08;RAID 50 \/ RAID 60&#xff09;<\/h5>\n<ul>\n<li>RAID 50&#xff1a;\u7531\u591a\u4e2a RAID 5 \u9635\u5217&#xff08;\u81f3\u5c11 2 \u7ec4&#xff09;\u901a\u8fc7 RAID 0 \u6761\u5e26\u5316\u7ec4\u5408\u800c\u6210\u3002\u63d0\u4f9b\u4e86\u6bd4 RAID 5 \u66f4\u9ad8\u7684\u6027\u80fd\u548c\u66f4\u5f3a\u7684\u5bb9\u9519\u80fd\u529b&#xff08;\u5141\u8bb8\u6bcf\u7ec4 RAID 5 \u4e2d\u5404\u574f\u4e00\u5757\u76d8&#xff09;\u3002<\/li>\n<li>RAID 60&#xff1a;\u7531\u591a\u4e2a RAID 6 \u9635\u5217&#xff08;\u81f3\u5c11 2 \u7ec4&#xff09;\u901a\u8fc7 RAID 0 \u6761\u5e26\u5316\u7ec4\u5408\u800c\u6210\u3002\u63d0\u4f9b\u4e86\u6bd4 RAID 6 \u66f4\u9ad8\u7684\u6027\u80fd&#xff0c;\u4ee5\u53ca\u6781\u5f3a\u7684\u5bb9\u9519\u80fd\u529b\u3002<\/li>\n<\/ul>\n<h5>2.7 RAID \u5404\u7ea7\u522b\u53c2\u6570\u5bf9\u6bd4\u603b\u7ed3<\/h5>\n<table>\n<tr>RAID\u7ea7\u522b\u6700\u5c0f\u78c1\u76d8\u6570\u5bb9\u9519\u80fd\u529b\u78c1\u76d8\u7a7a\u95f4\u5f00\u9500\u8bfb\u53d6\u901f\u5ea6\u5199\u5165\u901f\u5ea6\u786c\u4ef6\u6210\u672c<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">RAID 0<\/td>\n<td align=\"left\">2<\/td>\n<td align=\"left\">\u65e0<\/td>\n<td align=\"left\">0%<\/td>\n<td align=\"left\">\u9ad8<\/td>\n<td align=\"left\">\u9ad8<\/td>\n<td align=\"left\">\u4f4e<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">RAID 1<\/td>\n<td align=\"left\">2<\/td>\n<td align=\"left\">\u5355\u5757\u78c1\u76d8<\/td>\n<td align=\"left\">50%<\/td>\n<td align=\"left\">\u9ad8<\/td>\n<td align=\"left\">\u4f4e<\/td>\n<td align=\"left\">\u4e2d<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">RAID 5<\/td>\n<td align=\"left\">3<\/td>\n<td align=\"left\">\u5355\u5757\u78c1\u76d8<\/td>\n<td align=\"left\">1 \/ N<\/td>\n<td align=\"left\">\u4e2d<\/td>\n<td align=\"left\">\u4f4e<\/td>\n<td align=\"left\">\u4e2d<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">RAID 6<\/td>\n<td align=\"left\">4<\/td>\n<td align=\"left\">\u4e24\u5757\u78c1\u76d8<\/td>\n<td align=\"left\">2 \/ N<\/td>\n<td align=\"left\">\u4e2d<\/td>\n<td align=\"left\">\u4f4e<\/td>\n<td align=\"left\">\u9ad8<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">RAID 10<\/td>\n<td align=\"left\">4<\/td>\n<td align=\"left\">\u591a\u5757\u78c1\u76d8<\/td>\n<td align=\"left\">50%<\/td>\n<td align=\"left\">\u9ad8<\/td>\n<td align=\"left\">\u4e2d<\/td>\n<td align=\"left\">\u9ad8<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">RAID 50<\/td>\n<td align=\"left\">6<\/td>\n<td align=\"left\">\u591a\u5757\u78c1\u76d8<\/td>\n<td align=\"left\">1 \/ N<\/td>\n<td align=\"left\">\u9ad8<\/td>\n<td align=\"left\">\u4e2d<\/td>\n<td align=\"left\">\u9ad8<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">RAID 60<\/td>\n<td align=\"left\">8<\/td>\n<td align=\"left\">\u591a\u5757\u78c1\u76d8<\/td>\n<td align=\"left\">50%<\/td>\n<td align=\"left\">\u9ad8<\/td>\n<td align=\"left\">\u4e2d<\/td>\n<td align=\"left\">\u9ad8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h4>\u4e09\u3001 \u8f6f RAID \u7684\u914d\u7f6e\u4e0e\u7ba1\u7406\u5b9e\u6218&#xff08;mdadm&#xff09;<\/h4>\n<p>Linux \u63d0\u4f9b\u4e86\u5f3a\u5927\u7684 mdadm \u5b9e\u7528\u7a0b\u5e8f&#xff0c;\u7528\u4e8e\u521b\u5efa\u3001\u7ec4\u88c5\u548c\u7ba1\u7406\u8f6f\u4ef6 RAID \u9635\u5217\u3002<\/p>\n<h5>3.1 RAID 0 \u7684\u521b\u5efa\u4e0e\u7ba1\u7406<\/h5>\n<p>1. \u521b\u5efa RAID 0 \u9635\u5217<\/p>\n<p><span class=\"token comment\"># \u5b89\u88c5 mdadm<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># yum install -y mdadm<\/span><\/p>\n<p><span class=\"token comment\"># \u4f7f\u7528 \/dev\/sdb \u548c \/dev\/sdc \u521b\u5efa\u4e00\u4e2a RAID 0 \u8bbe\u5907 \/dev\/md0<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;create \/dev\/md0 &#8211;level 0 &#8211;raid-devices 2 \/dev\/sd{b,c}<\/span><br \/>\nmdadm: Defaulting to version <span class=\"token number\">1.2<\/span> metadata<br \/>\nmdadm: array \/dev\/md0 started.<\/p>\n<p>2. \u67e5\u770b\u9635\u5217\u4fe1\u606f \u53ef\u4ee5\u901a\u8fc7 \/proc\/mdstat \u5feb\u901f\u67e5\u770b\u9635\u5217\u6982\u8981\u72b6\u6001&#xff0c;\u6216\u901a\u8fc7 mdadm &#8211;detail \u83b7\u53d6\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u6982\u8981<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># cat \/proc\/mdstat<\/span><br \/>\nPersonalities <span class=\"token builtin class-name\">:<\/span> <span class=\"token punctuation\">[<\/span>raid0<span class=\"token punctuation\">]<\/span><br \/>\nmd0 <span class=\"token builtin class-name\">:<\/span> active raid0 sdc<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span> sdb<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><br \/>\n      <span class=\"token number\">41908224<\/span> blocks super <span class=\"token number\">1.2<\/span> 512k chunks<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u8be6\u7ec6\u5c5e\u6027<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;detail \/dev\/md0<\/span><br \/>\n<span class=\"token punctuation\">..<\/span>.<br \/>\n        Raid Level <span class=\"token builtin class-name\">:<\/span> raid0<br \/>\n        Array Size <span class=\"token builtin class-name\">:<\/span> <span class=\"token number\">41908224<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">39.97<\/span> GiB <span class=\"token number\">42.91<\/span> GB<span class=\"token punctuation\">)<\/span><br \/>\n      Raid Devices <span class=\"token builtin class-name\">:<\/span> <span class=\"token number\">2<\/span><br \/>\n             State <span class=\"token builtin class-name\">:<\/span> clean<br \/>\n          Chunk Size <span class=\"token builtin class-name\">:<\/span> 512K<br \/>\n<span class=\"token punctuation\">..<\/span>.<br \/>\n    Number   Major   Minor   RaidDevice State<br \/>\n       <span class=\"token number\">0<\/span>       <span class=\"token number\">8<\/span>       <span class=\"token number\">16<\/span>        <span class=\"token number\">0<\/span>      active <span class=\"token function\">sync<\/span>   \/dev\/sdb<br \/>\n       <span class=\"token number\">1<\/span>       <span class=\"token number\">8<\/span>       <span class=\"token number\">32<\/span>        <span class=\"token number\">1<\/span>      active <span class=\"token function\">sync<\/span>   \/dev\/sdc<\/p>\n<p>\u91cd\u70b9\u5173\u6ce8\u5c5e\u6027&#xff1a;Raid Level\u3001State\u3001Chunk Size \u4ee5\u53ca\u8bbe\u5907\u6e05\u5355\u3002<\/p>\n<p>3. \u683c\u5f0f\u5316\u548c\u6302\u8f7d<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mkfs.xfs \/dev\/md0<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mkdir -p \/raid\/raid0<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mount \/dev\/md0 \/raid\/raid0<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># df -h \/raid\/raid0<\/span><br \/>\nFilesystem      Size  Used Avail Use% Mounted on<br \/>\n\/dev\/md0         40G  319M   40G   <span class=\"token number\">1<\/span>% \/raid\/raid0<\/p>\n<p>4. \u5220\u9664 RAID 0<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># umount \/dev\/md0<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;stop \/dev\/md0<\/span><br \/>\nmdadm: stopped \/dev\/md0<br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;zero-superblock \/dev\/sd{b,c}<\/span><\/p>\n<p>\u26a0\ufe0f RAID 0 \u7684\u7279\u6027\u9650\u5236&#xff08;\u91cd\u8981&#xff09;&#xff1a;<\/p>\n<li>RAID 0 \u6761\u5e26\u5316\u9635\u5217\u65e0\u6cd5\u589e\u52a0\u65b0\u7684\u6210\u5458\u76d8\u6269\u5bb9\u3002\u6267\u884c mdadm &#8211;add \u4f1a\u62a5\u9519 Invalid argument\u3002<\/li>\n<li>RAID 0 \u65e0\u6cd5\u5f3a\u5236\u6545\u969c\u4e00\u5757\u6210\u5458\u76d8\u3002\u56e0\u4e3a\u6ca1\u6709\u4efb\u4f55\u5197\u4f59&#xff0c;\u6545\u969c\u610f\u5473\u7740\u6574\u4e2a\u9635\u5217\u6570\u636e\u4e22\u5931&#xff0c;\u7cfb\u7edf\u4f1a\u76f4\u63a5\u62d2\u7edd\u8be5\u64cd\u4f5c\u3002<\/li>\n<hr \/>\n<h5>3.2 RAID 1 \u7684\u5bb9\u9519\u4e0e\u70ed\u5907\u76d8\u673a\u5236<\/h5>\n<p>1. \u521b\u5efa RAID 1 \u9635\u5217<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;create \/dev\/md1 &#8211;level 1 &#8211;raid-devices 2 \/dev\/sd{b,c}<\/span><br \/>\nmdadm: Note: this array has metadata at the start and may not be suitable<span class=\"token punctuation\">..<\/span>.<br \/>\nContinue creating array? <span class=\"token function\">yes<\/span><br \/>\nmdadm: Defaulting to version <span class=\"token number\">1.2<\/span> metadata<br \/>\nmdadm: array \/dev\/md1 started.<\/p>\n<p>2. \u7b49\u5f85\u540c\u6b65\u5b8c\u6210 RAID 1 \u521b\u5efa\u540e&#xff0c;\u7cfb\u7edf\u4f1a\u81ea\u52a8\u8fdb\u884c\u6570\u636e\u540c\u6b65\u3002\u5728\u540c\u6b65\u5b8c\u6210\u4e4b\u524d&#xff0c;State \u663e\u793a\u4e3a clean, resyncing&#xff0c;\u5e76\u4e14\u4f1a\u6709 Resync Status \u8fdb\u5ea6\u6761\u3002\u5fc5\u987b\u7b49\u5f85\u8fdb\u5ea6\u8fbe\u5230 100% \u540e&#xff0c;\u624d\u80fd\u8fdb\u884c\u683c\u5f0f\u5316\u548c\u6302\u8f7d\u3002<\/p>\n<p>3. \u589e\u52a0\u70ed\u5907\u76d8 RAID 1 \u652f\u6301\u5728\u7ebf\u589e\u52a0\u70ed\u5907\u76d8&#xff08;Spare Disk&#xff09;&#xff0c;\u4e00\u65e6\u9635\u5217\u4e2d\u67d0\u5757\u76d8\u53d1\u751f\u6545\u969c&#xff0c;\u70ed\u5907\u76d8\u4f1a\u81ea\u52a8\u9876\u66ff\u5e76\u91cd\u5efa\u6570\u636e\u3002<\/p>\n<p><span class=\"token comment\"># \u5c06 \/dev\/sdd \u6dfb\u52a0\u4e3a\u70ed\u5907\u76d8<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;add \/dev\/md1 \/dev\/sdd<\/span><br \/>\nmdadm: added \/dev\/sdd<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u72b6\u6001&#xff0c;\/dev\/sdd \u72b6\u6001\u53d8\u4e3a spare<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;detail \/dev\/md1 |tail -5<\/span><br \/>\n<span class=\"token punctuation\">..<\/span>.<br \/>\n       <span class=\"token number\">2<\/span>       <span class=\"token number\">8<\/span>       <span class=\"token number\">48<\/span>        &#8211;      spare   \/dev\/sdd<\/p>\n<p>4. \u6a21\u62df\u78c1\u76d8\u6545\u969c\u4e0e\u81ea\u52a8\u91cd\u5efa<\/p>\n<p><span class=\"token comment\"># \u5f3a\u5236\u5c06 \/dev\/sdc \u6807\u8bb0\u4e3a\u6545\u969c<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;fail \/dev\/md1 \/dev\/sdc<\/span><br \/>\nmdadm: <span class=\"token builtin class-name\">set<\/span> \/dev\/sdc faulty <span class=\"token keyword\">in<\/span> \/dev\/md1<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u6210\u5458\u72b6\u6001\u53d8\u5316<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;detail \/dev\/md1 |tail -5<\/span><br \/>\n<span class=\"token punctuation\">..<\/span>.<br \/>\n       <span class=\"token number\">2<\/span>       <span class=\"token number\">8<\/span>       <span class=\"token number\">48<\/span>        <span class=\"token number\">1<\/span>      spare rebuilding   \/dev\/sdd<br \/>\n       <span class=\"token number\">1<\/span>       <span class=\"token number\">8<\/span>       <span class=\"token number\">32<\/span>        &#8211;      faulty   \/dev\/sdc<\/p>\n<p>\u6b64\u65f6\u70ed\u5907\u76d8 \/dev\/sdd \u7acb\u523b\u9876\u66ff\u4e86\u6545\u969c\u76d8 \/dev\/sdc \u7684\u4f4d\u7f6e&#xff0c;\u5e76\u5f00\u59cb\u91cd\u5efa\u540c\u6b65\u3002\u5728\u6b64\u671f\u95f4&#xff0c;\u6570\u636e\u8bbf\u95ee\u4f9d\u7136\u6b63\u5e38&#xff0c;\u5b8c\u7f8e\u4f53\u73b0\u4e86 RAID 1 \u7684\u9ad8\u53ef\u7528\u6027\u3002<\/p>\n<p>5. \u79fb\u9664\u6545\u969c\u78c1\u76d8\u4e0e\u5220\u9664 RAID<\/p>\n<p><span class=\"token comment\"># \u79fb\u9664\u7269\u7406\u6545\u969c\u76d8<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;remove \/dev\/md1 \/dev\/sdc<\/span><br \/>\nmdadm: hot removed \/dev\/sdc from \/dev\/md1<\/p>\n<p><span class=\"token comment\"># \u5220\u9664\u6574\u4e2a\u9635\u5217<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># umount \/dev\/md1<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;stop \/dev\/md1<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;zero-superblock \/dev\/sd{b..d}<\/span><\/p>\n<p>\u26a0\ufe0f RAID 1 \u7684\u7279\u6027\u9650\u5236&#xff08;\u91cd\u8981&#xff09;&#xff1a; RAID 1 \u7684\u8bbe\u8ba1\u521d\u8877\u662f\u6570\u636e\u5197\u4f59\u548c\u53ef\u9760\u6027&#xff0c;\u800c\u4e0d\u662f\u4e3a\u4e86\u589e\u52a0\u5b58\u50a8\u5bb9\u91cf\u3002\u5373\u4f7f\u5c1d\u8bd5\u5bf9 RAID 1 \u8fdb\u884c\u6269\u5bb9&#xff0c;\u5176\u603b\u5bb9\u91cf\u4e5f\u662f\u4e0d\u4f1a\u589e\u52a0\u7684&#xff0c;\u56e0\u4e3a\u955c\u50cf\u5173\u7cfb\u51b3\u5b9a\u4e86\u5bb9\u91cf\u4ec5\u7b49\u4e8e\u6700\u5c0f\u7684\u4e00\u5757\u6210\u5458\u76d8\u3002<\/p>\n<hr \/>\n<h5>3.3 RAID 5 \u7684\u52a8\u6001\u6269\u5bb9\u4e0e\u6545\u969c\u6a21\u62df<\/h5>\n<p>1. \u521b\u5efa RAID 5 \u9635\u5217<\/p>\n<p><span class=\"token comment\"># \u4f7f\u7528 4 \u5757\u78c1\u76d8\u521b\u5efa\u4e00\u4e2a RAID 5 \u8bbe\u5907 \/dev\/md5<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;create \/dev\/md5 &#8211;level 5 &#8211;raid-devices 4 \/dev\/sd{b..e}<\/span><\/p>\n<p>2. \u67e5\u770b\u540c\u6b65\u8fdb\u5ea6 RAID 5 \u521b\u5efa\u540e\u4f1a\u6709\u8fdb\u5ea6\u6761&#xff0c;\u5fc5\u987b\u7b49\u5f85 Resync Status \u8fbe\u5230 100% \u540e&#xff0c;\u9635\u5217\u624d\u8fdb\u5165 clean \u72b6\u6001&#xff0c;\u6b64\u65f6\u624d\u80fd\u8fdb\u884c mkfs \u548c\u6302\u8f7d\u3002<\/p>\n<p>3. \u589e\u52a0\u70ed\u5907\u76d8\u4e0e\u6a21\u62df\u6545\u969c \u4e0e RAID 1 \u7c7b\u4f3c&#xff0c;RAID 5 \u4e5f\u652f\u6301\u70ed\u5907\u76d8\u3002<\/p>\n<p><span class=\"token comment\"># \u589e\u52a0\u70ed\u5907\u76d8<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;add \/dev\/md5 \/dev\/sdf<\/span><\/p>\n<p><span class=\"token comment\"># \u6a21\u62df\u6545\u969c<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;fail \/dev\/md5 \/dev\/sdb<\/span><\/p>\n<p>\u4e00\u65e6 sdb \u6545\u969c&#xff0c;\u70ed\u5907\u76d8 sdf \u4f1a\u7acb\u5373\u9876\u66ff\u5e76\u5f00\u59cb\u91cd\u5efa&#xff08;\u72b6\u6001\u53d8\u4e3a spare rebuilding&#xff09;\u3002\u6570\u636e\u4f9d\u7136\u53ef\u4ee5\u6b63\u5e38\u8bbf\u95ee\u3002<\/p>\n<p>4. \u76d1\u63a7\u78c1\u76d8\u8bfb\u5199\u6027\u80fd&#xff08;sar \u547d\u4ee4&#xff09; \u5728 RAID \u9635\u5217\u6545\u969c\u4fee\u590d\u6216\u91cd\u5efa\u671f\u95f4&#xff0c;\u53ef\u4ee5\u4f7f\u7528 sar -dp 1 \u5b9e\u65f6\u76d1\u63a7\u78c1\u76d8\u7684\u6027\u80fd\u72b6\u6001&#xff1a;<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server ~ <span class=\"token number\">15<\/span>:09:05<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># sar -dp 1<\/span><br \/>\n<span class=\"token punctuation\">..<\/span>.<br \/>\n<span class=\"token number\">15<\/span>\u65f609\u520605\u79d2   sdf   <span class=\"token number\">1718.18<\/span>      <span class=\"token number\">0.00<\/span> <span class=\"token number\">439854.55<\/span>    <span class=\"token number\">256.00<\/span>      <span class=\"token number\">0.33<\/span>      <span class=\"token number\">0.19<\/span>      <span class=\"token number\">0.19<\/span>     <span class=\"token number\">32.73<\/span><br \/>\n<span class=\"token number\">15<\/span>\u65f609\u520605\u79d2   sde   <span class=\"token number\">1718.18<\/span> <span class=\"token number\">439854.55<\/span>      <span class=\"token number\">0.00<\/span>    <span class=\"token number\">256.00<\/span>      <span class=\"token number\">0.38<\/span>      <span class=\"token number\">0.22<\/span>      <span class=\"token number\">0.22<\/span>     <span class=\"token number\">38.18<\/span><br \/>\n<span class=\"token punctuation\">..<\/span>.<\/p>\n<p>\u91cd\u70b9\u6ce8\u610f %util&#xff08;\u78c1\u76d8\u7e41\u5fd9\u7a0b\u5ea6&#xff09;\u548c rd_sec\/s \/ wr_sec\/s&#xff08;\u6bcf\u79d2\u8bfb\u5199\u6247\u533a\u6570\u91cf&#xff09;&#xff0c;\u53ef\u4ee5\u51c6\u786e\u5224\u65ad\u78c1\u76d8\u662f\u5426\u5904\u4e8e\u9ad8\u8d1f\u8f7d\u72b6\u6001\u3002<\/p>\n<p>5. RAID 5 \u7684\u5728\u7ebf\u6269\u5bb9&#xff08;\u6838\u5fc3\u6280\u80fd&#xff09; \u6ce8\u610f&#xff1a; \u6269\u5bb9\u7684\u524d\u63d0\u662f\u9635\u5217\u5fc5\u987b\u5904\u4e8e\u6b63\u5e38&#xff08;clean&#xff09;\u72b6\u6001&#xff0c;\u964d\u7ea7\u6216\u6b63\u5728\u91cd\u6784\u65f6\u4e0d\u5141\u8bb8\u6269\u5bb9\u3002<\/p>\n<p><span class=\"token comment\"># 1. \u65b0\u589e\u4e24\u5757\u76d8\u4f5c\u4e3a\u70ed\u5907\u76d8<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;add \/dev\/md5 \/dev\/sdb \/dev\/sdg<\/span><\/p>\n<p><span class=\"token comment\"># 2. \u5c06\u9635\u5217\u7684\u6d3b\u52a8\u6210\u5458\u76d8\u6570\u91cf\u4ece 4 \u6269\u5bb9\u5230 5<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;grow \/dev\/md5 &#8211;raid-devices 5<\/span><\/p>\n<p><span class=\"token comment\"># 3. \u7b49\u5f85\u91cd\u7ec4\u5b8c\u6210&#xff0c;\u67e5\u770b\u8fdb\u5ea6<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;detail \/dev\/md5<\/span><br \/>\n<span class=\"token punctuation\">..<\/span>.<br \/>\n    Reshape Status <span class=\"token builtin class-name\">:<\/span> <span class=\"token number\">16<\/span>% complete<br \/>\n     Delta Devices <span class=\"token builtin class-name\">:<\/span> <span class=\"token number\">1<\/span>, <span class=\"token punctuation\">(<\/span><span class=\"token number\">4<\/span>&#8211;<span class=\"token operator\">&gt;<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">..<\/span>.<\/p>\n<p><span class=\"token comment\"># 4. \u786e\u8ba4\u5bb9\u91cf\u53d8\u5316<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lsblk \/dev\/md5<\/span><br \/>\nNAME MAJ:MIN RM SIZE RO TYPE  MOUNTPOINT<br \/>\nmd5    <span class=\"token number\">9<\/span>:5    <span class=\"token number\">0<\/span>  80G  <span class=\"token number\">0<\/span> raid5 \/raid\/raid5  <span class=\"token comment\"># \u5bb9\u91cf\u5df2\u6210\u529f\u589e\u52a0<\/span><\/p>\n<p><span class=\"token comment\"># 5. \u6269\u5bb9\u6587\u4ef6\u7cfb\u7edf&#xff08;XFS \u9700\u8981\u4e13\u7528\u547d\u4ee4&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># xfs_growfs \/raid\/raid5<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># df -h \/raid\/raid5\/<\/span><br \/>\nFilesystem      Size  Used Avail Use% Mounted on<br \/>\n\/dev\/md5         80G  604M   80G   <span class=\"token number\">1<\/span>% \/raid\/raid5<\/p>\n<p>6. \u91cd\u5efa\u4e0e\u6e05\u9664 RAID \u5982\u679c stop \u540e&#xff0c;\u5c1a\u672a\u6e05\u9664 superblock&#xff0c;\u53ef\u4ee5\u901a\u8fc7 mdadm &#8211;assemble \u547d\u4ee4\u91cd\u65b0\u7ec4\u5408\u9635\u5217\u4ee5\u6062\u590d\u6570\u636e&#xff1a;<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;assemble \/dev\/md5 \/dev\/sd{b..g}<\/span><\/p>\n<p>\u6700\u7ec8\u5f7b\u5e95\u5220\u9664\u5e76\u8fd8\u539f\u78c1\u76d8&#xff1a;<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># umount \/dev\/md5<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;stop \/dev\/md5<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mdadm &#8211;zero-superblock \/dev\/sd{b..g}<\/span><\/p>\n<h3>\u903b\u8f91\u5377\u7ba1\u7406<\/h3>\n<h4>\u786c\u76d8\u5206\u533a\u7ba1\u7406\u65b9\u6848\u7f3a\u70b9<\/h4>\n<p>\u4f20\u7edf\u5206\u533a\u7ba1\u7406\u5b58\u5728\u4e09\u5927\u77ed\u677f&#xff1a;<\/p>\n<ul>\n<li>\u6269\u5bb9\u9ebb\u70e6&#xff1a;\u5206\u533a\u7a7a\u95f4\u5fc5\u987b\u8fde\u7eed&#xff0c;\u6269\u5bb9\u65f6\u8981\u6c42\u5206\u533a\u540e\u6709\u5269\u4f59\u8fde\u7eed\u7a7a\u95f4&#xff0c;\u64cd\u4f5c\u590d\u6742\u3002<\/li>\n<li>\u65e0\u6cd5\u8de8\u76d8&#xff1a;\u5355\u4e2a\u6587\u4ef6\u7cfb\u7edf\u53d7\u9650\u4e8e\u5355\u5757\u786c\u76d8\u5bb9\u91cf&#xff0c;\u65e0\u6cd5\u8de8\u8d8a\u591a\u4e2a\u7269\u7406\u78c1\u76d8\u3002<\/li>\n<li>\u6570\u636e\u98ce\u9669&#xff1a;\u4e00\u65e6\u786c\u76d8\u635f\u574f&#xff0c;\u8be5\u5206\u533a\u4e0a\u7684\u6240\u6709\u6570\u636e\u5c06\u5168\u90e8\u4e22\u5931\u3002<\/li>\n<\/ul>\n<h4>\u903b\u8f91\u5377\u7ba1\u7406&#xff08;LVM&#xff09;\u7684\u4f18\u52bf<\/h4>\n<p>LVM \u901a\u8fc7\u62bd\u8c61\u5b58\u50a8\u5c42&#xff0c;\u5e26\u6765\u4e86\u663e\u8457\u7684\u7075\u6d3b\u6027\u548c\u53ef\u9760\u6027&#xff1a;<\/p>\n<ul>\n<li>\u7075\u6d3b\u6269\u5bb9\/\u7f29\u51cf&#xff1a;\u6587\u4ef6\u7cfb\u7edf\u7a7a\u95f4\u53ef\u4ee5\u5728\u7ebf\u6269\u5c55\u6216\u7f29\u51cf&#xff0c;\u65e0\u9700\u91cd\u65b0\u5206\u533a\u3002<\/li>\n<li>\u8de8\u76d8\u6574\u5408&#xff1a;\u903b\u8f91\u5377\u53ef\u4ee5\u8de8\u8d8a\u591a\u4e2a\u7269\u7406\u786c\u76d8&#xff0c;\u8f7b\u677e\u521b\u5efa\u8d85\u5927\u5bb9\u91cf\u6587\u4ef6\u7cfb\u7edf\u3002<\/li>\n<li>\u6570\u636e\u5197\u4f59&#xff1a;\u652f\u6301\u521b\u5efa RAID \u955c\u50cf\u5377&#xff0c;\u5355\u4e2a\u786c\u76d8\u635f\u574f\u4e0d\u5f71\u54cd\u6570\u636e\u3002<\/li>\n<li>\u5feb\u7167\u529f\u80fd&#xff1a;\u4fdd\u7559\u67d0\u4e00\u65f6\u523b\u7684\u6570\u636e\u72b6\u6001&#xff0c;\u4fbf\u4e8e\u5feb\u901f\u6062\u590d\u3002<\/li>\n<\/ul>\n<h4>\u57fa\u672c\u6982\u5ff5<\/h4>\n<p>LVM \u5305\u542b\u4e09\u4e2a\u6838\u5fc3\u5c42\u6b21&#xff1a;<\/p>\n<ul>\n<li>\u7269\u7406\u5377&#xff08;PV&#xff0c;Physical Volume&#xff09;&#xff1a;\u662f LVM \u7684\u57fa\u672c\u5b58\u50a8\u5757&#xff0c;\u7531\u78c1\u76d8\u3001\u5206\u533a\u6216 RAID \u8bbe\u5907\u521d\u59cb\u5316\u800c\u6765\u3002<\/li>\n<li>\u5377\u7ec4&#xff08;VG&#xff0c;Volume Group&#xff09;&#xff1a;\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u7269\u7406\u5377\u7ec4\u6210\u7684\u5b58\u50a8\u6c60\u3002<\/li>\n<li>\u903b\u8f91\u5377&#xff08;LV&#xff0c;Logical Volume&#xff09;&#xff1a;\u4ece\u5377\u7ec4\u4e2d\u5212\u5206\u51fa\u7684\u903b\u8f91\u7a7a\u95f4&#xff0c;\u53ef\u89c6\u4e3a\u865a\u62df\u5206\u533a&#xff0c;\u53ef\u5728\u5176\u4e0a\u521b\u5efa\u6587\u4ef6\u7cfb\u7edf\u3002<\/li>\n<\/ul>\n<p>\u5173\u7cfb\u56fe\u793a&#xff1a;<\/p>\n<p>\u5377\u7ec4\u7531\u591a\u4e2a\u7269\u7406\u5377\u7ec4\u6210&#xff0c;\u5728\u5377\u7ec4\u4e2d\u53ef\u521b\u5efa\u591a\u4e2a\u903b\u8f91\u5377&#xff0c;\u903b\u8f91\u5377\u4e0a\u53ef\u521b\u5efa\u6587\u4ef6\u7cfb\u7edf\u4f9b\u7528\u6237\u4f7f\u7528\u3002<\/p>\n<h4>LVM \u7ba1\u7406\u57fa\u672c\u6d41\u7a0b<\/h4>\n<li>\u521b\u5efa\u7269\u7406\u5377&#xff08;PV&#xff09;<\/li>\n<li>\u521b\u5efa\u5377\u7ec4&#xff08;VG&#xff09;<\/li>\n<li>\u521b\u5efa\u903b\u8f91\u5377&#xff08;LV&#xff09;<\/li>\n<li>\u5728\u903b\u8f91\u5377\u4e0a\u521b\u5efa\u6587\u4ef6\u7cfb\u7edf\u5e76\u6302\u8f7d\u4f7f\u7528<\/li>\n<h5>\u521b\u5efa\u7269\u7406\u5377<\/h5>\n<p><span class=\"token comment\"># \u521b\u5efa\u5355\u4e2a PV<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvcreate \/dev\/sdb<\/span><br \/>\n  Physical volume <span class=\"token string\">&#034;\/dev\/sdb&#034;<\/span> successfully created.<\/p>\n<p><span class=\"token comment\"># \u540c\u65f6\u521b\u5efa\u591a\u4e2a PV<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvcreate \/dev\/sd{c,d}<\/span><br \/>\n  Physical volume <span class=\"token string\">&#034;\/dev\/sdc&#034;<\/span> successfully created.<br \/>\n  Physical volume <span class=\"token string\">&#034;\/dev\/sdd&#034;<\/span> successfully created.<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b PV \u5217\u8868<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvs<\/span><br \/>\n  PV         VG     Fmt  Attr PSize   PFree<br \/>\n  \/dev\/sdb          lvm2 &#8212;   <span class=\"token number\">20<\/span>.00g <span class=\"token number\">20<\/span>.00g<br \/>\n  \/dev\/sdc          lvm2 &#8212;   <span class=\"token number\">20<\/span>.00g <span class=\"token number\">20<\/span>.00g<br \/>\n  \/dev\/sdd          lvm2 &#8212;   <span class=\"token number\">20<\/span>.00g <span class=\"token number\">20<\/span>.00g<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u5355\u4e2a PV \u8be6\u7ec6\u4fe1\u606f<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvdisplay \/dev\/sdb<\/span><br \/>\n  <span class=\"token string\">&#034;\/dev\/sdb&#034;<\/span> is a new physical volume of <span class=\"token string\">&#034;20.00 GiB&#034;<\/span><br \/>\n  &#8212; NEW Physical volume &#8212;<br \/>\n  PV Name               \/dev\/sdb<br \/>\n  VG Name<br \/>\n  PV Size               <span class=\"token number\">20.00<\/span> GiB<br \/>\n  Allocatable           NO<br \/>\n  PE Size               <span class=\"token number\">0<\/span><br \/>\n  Total PE              <span class=\"token number\">0<\/span><br \/>\n  Free PE               <span class=\"token number\">0<\/span><br \/>\n  Allocated PE          <span class=\"token number\">0<\/span><br \/>\n  PV UUID               MBHW0w-OkJL-CasO-PYRR-sduS-U2m5-zdkQ5d<\/p>\n<h5>\u521b\u5efa\u5377\u7ec4<\/h5>\n<p><span class=\"token comment\"># \u521b\u5efa\u5305\u542b\u5355\u4e2a PV \u7684\u5377\u7ec4<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vgcreate webapp \/dev\/sdb<\/span><br \/>\n  Volume group <span class=\"token string\">&#034;webapp&#034;<\/span> successfully created<\/p>\n<p><span class=\"token comment\"># \u521b\u5efa\u5305\u542b\u591a\u4e2a PV \u7684\u5377\u7ec4<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vgcreate dbapp \/dev\/sd{c,d}<\/span><br \/>\n  Volume group <span class=\"token string\">&#034;dbapp&#034;<\/span> successfully created<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvs<\/span><br \/>\n  PV         VG     Fmt  Attr PSize   PFree<br \/>\n  \/dev\/sdb   webapp   lvm2 a&#8211;  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g<br \/>\n  \/dev\/sdc   dbapp   lvm2 a&#8211;  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g<br \/>\n  \/dev\/sdd   dbapp   lvm2 a&#8211;  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b VG \u5217\u8868<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vgs<\/span><br \/>\n  VG     <span class=\"token comment\">#PV #LV #SN Attr   VSize   VFree  <\/span><br \/>\n  dbapp    <span class=\"token number\">2<\/span>   <span class=\"token number\">0<\/span>   <span class=\"token number\">0<\/span> wz&#8211;n-   <span class=\"token number\">39<\/span>.99g  <span class=\"token number\">39<\/span>.99g<br \/>\n  webapp   <span class=\"token number\">1<\/span>   <span class=\"token number\">0<\/span>   <span class=\"token number\">0<\/span> wz&#8211;n-  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u5355\u4e2a VG \u8be6\u7ec6\u4fe1\u606f<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vgdisplay dbapp<\/span><br \/>\n  &#8212; Volume group &#8212;<br \/>\n  VG Name               dbapp<br \/>\n  <span class=\"token punctuation\">..<\/span>.<br \/>\n  PE Size               <span class=\"token number\">4.00<\/span> MiB<br \/>\n  Total PE              <span class=\"token number\">10238<\/span><br \/>\n  Alloc PE \/ Size       <span class=\"token number\">0<\/span> \/ <span class=\"token number\">0<\/span><br \/>\n  Free  PE \/ Size       <span class=\"token number\">10238<\/span> \/ <span class=\"token number\">39.99<\/span> GiB<\/p>\n<p>\u6ce8&#xff1a;PE&#xff08;Physical Extend&#xff09; \u662f PV \u7684\u6700\u5c0f\u5b58\u50a8\u5355\u5143&#xff0c;\u521b\u5efa VG \u65f6\u53ef\u901a\u8fc7 -s \u9009\u9879\u8bbe\u7f6e\u5927\u5c0f&#xff0c;\u9ed8\u8ba4\u4e3a 4 MiB\u3002<\/p>\n<h5>\u521b\u5efa\u903b\u8f91\u5377<\/h5>\n<p><span class=\"token comment\"># \u5728\u5377\u7ec4 webapp \u4e2d\u521b\u5efa\u540d\u4e3a webapp01&#xff0c;\u5927\u5c0f\u4e3a 5G \u7684\u903b\u8f91\u5377<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvcreate -n webapp01 -L 5G webapp<\/span><br \/>\n  Logical volume <span class=\"token string\">&#034;webapp01&#034;<\/span> created.<\/p>\n<p><span class=\"token comment\"># \u5728\u5377\u7ec4 dbapp \u4e2d\u521b\u5efa\u540d\u4e3a data01&#xff0c;\u5927\u5c0f\u4e3a 25G \u7684\u903b\u8f91\u5377&#xff08;\u8de8\u4e24\u5757\u786c\u76d8&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvcreate -n data01 -L 25G dbapp<\/span><br \/>\n  Logical volume <span class=\"token string\">&#034;data01&#034;<\/span> created.<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b LV \u5217\u8868<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvs<\/span><br \/>\n  LV     VG     Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert<br \/>\n  data01   dbapp  -wi-a&#8212;&#8211;  <span class=\"token number\">25<\/span>.00g<br \/>\n  webapp01 webapp -wi-a&#8212;&#8211;   <span class=\"token number\">5<\/span>.00g <\/p>\n<p>\u903b\u8f91\u5377\u8bbe\u5907\u540d\u652f\u6301\u4e09\u79cd\u683c\u5f0f&#xff1a;<\/p>\n<ul>\n<li>\/dev\/vname\/lvname<\/li>\n<li>\/dev\/mapper\/vname-lvname<\/li>\n<li>\/dev\/dm-N<\/li>\n<\/ul>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># ls -l \/dev\/dbapp\/data01 \/dev\/mapper\/dbapp-data01<\/span><br \/>\nlrwxrwxrwx <span class=\"token number\">1<\/span> root root <span class=\"token number\">7<\/span> <span class=\"token number\">6<\/span>\u6708  <span class=\"token number\">17<\/span> <span class=\"token number\">18<\/span>:26 \/dev\/dbapp\/data01 &#8211;<span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">..<\/span>\/dm-4<br \/>\nlrwxrwxrwx <span class=\"token number\">1<\/span> root root <span class=\"token number\">7<\/span> <span class=\"token number\">6<\/span>\u6708  <span class=\"token number\">17<\/span> <span class=\"token number\">18<\/span>:26 \/dev\/mapper\/dbapp-data01 &#8211;<span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">..<\/span>\/dm-4<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u5355\u4e2a LV \u8be6\u7ec6\u4fe1\u606f<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvdisplay \/dev\/dbapp\/data01<\/span><br \/>\n  &#8212; Logical volume &#8212;<br \/>\n  LV Path                \/dev\/dbapp\/data01<br \/>\n  LV Name                data02<br \/>\n  VG Name                dbapp<br \/>\n  <span class=\"token punctuation\">..<\/span>.<br \/>\n  LV Size                <span class=\"token number\">25.00<\/span> GiB<br \/>\n  Current LE             <span class=\"token number\">6400<\/span><br \/>\n  Segments               <span class=\"token number\">2<\/span><\/p>\n<p>\u6ce8&#xff1a;LE&#xff08;Logical Extend&#xff09; \u662f LV \u7684\u6700\u5c0f\u5b58\u50a8\u5355\u5143&#xff0c;\u901a\u5e38\u4e00\u4e2a LE \u5bf9\u5e94\u4e00\u4e2a PE\u3002<\/p>\n<p>\u6b64\u65f6&#xff0c;\u7269\u7406\u5377\u7a7a\u95f4\u4f7f\u7528\u60c5\u51b5&#xff1a;<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvs<\/span><br \/>\n  PV             VG     Fmt  Attr PSize    PFree<br \/>\n  \/dev\/sdb       webapp lvm2 a&#8211;   <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g <span class=\"token operator\">&lt;<\/span><span class=\"token number\">15<\/span>.00g<br \/>\n  \/dev\/sdc       dbapp  lvm2 a&#8211;   <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g      <span class=\"token number\">0<\/span><br \/>\n  \/dev\/sdd       dbapp  lvm2 a&#8211;   <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g  <span class=\"token number\">14<\/span>.99g<\/p>\n<p>\u53ef\u4ee5\u770b\u5230&#xff0c;\/dev\/sdc \u5df2\u7528\u5b8c&#xff0c;\/dev\/sdd \u8fd8\u6709\u5269\u4f59\u3002<\/p>\n<p>\u67e5\u770b\u8bbe\u5907\u6620\u5c04\u5173\u7cfb&#xff1a;<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lsblk \/dev\/sd{b..d}<\/span><br \/>\nNAME              MAJ:MIN RM SIZE RO TYPE MOUNTPOINT<br \/>\nsdb                 <span class=\"token number\">8<\/span>:16   <span class=\"token number\">0<\/span>  20G  <span class=\"token number\">0<\/span> disk<br \/>\n\u2514\u2500webapp-webapp01 <span class=\"token number\">253<\/span>:3    <span class=\"token number\">0<\/span>   5G  <span class=\"token number\">0<\/span> lvm<br \/>\nsdc                 <span class=\"token number\">8<\/span>:32   <span class=\"token number\">0<\/span>  20G  <span class=\"token number\">0<\/span> disk<br \/>\n\u2514\u2500dbapp-data01    <span class=\"token number\">253<\/span>:4    <span class=\"token number\">0<\/span>  25G  <span class=\"token number\">0<\/span> lvm<br \/>\nsdd                 <span class=\"token number\">8<\/span>:48   <span class=\"token number\">0<\/span>  20G  <span class=\"token number\">0<\/span> disk<br \/>\n\u2514\u2500dbapp-data01    <span class=\"token number\">253<\/span>:4    <span class=\"token number\">0<\/span>  25G  <span class=\"token number\">0<\/span> lvm <\/p>\n<h5>\u521b\u5efa\u6587\u4ef6\u7cfb\u7edf<\/h5>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mkfs.xfs \/dev\/webapp\/webapp01<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mount \/dev\/webapp\/webapp01 \/usr\/share\/nginx\/html<\/span><\/p>\n<p>\u82e5\u9700\u6301\u4e45\u5316\u6302\u8f7d&#xff0c;\u9700\u5728 \/etc\/fstab \u4e2d\u6dfb\u52a0\u76f8\u5e94\u6761\u76ee\u3002<\/p>\n<h5>\u6e05\u7406 LVM<\/h5>\n<p><span class=\"token comment\"># \u5378\u8f7d\u6587\u4ef6\u7cfb\u7edf<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># umount \/dev\/webapp\/webapp01<\/span><\/p>\n<p><span class=\"token comment\"># \u5220\u9664 LV<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvremove \/dev\/webapp\/webapp01 \/dev\/dbapp\/data01<\/span><br \/>\nDo you really want to remove active logical volume webapp\/webapp01? <span class=\"token punctuation\">[<\/span>y\/n<span class=\"token punctuation\">]<\/span>: y<br \/>\n  Logical volume <span class=\"token string\">&#034;webapp01&#034;<\/span> successfully removed<br \/>\nDo you really want to remove active logical volume dbapp\/data01? <span class=\"token punctuation\">[<\/span>y\/n<span class=\"token punctuation\">]<\/span>: y<br \/>\n  Logical volume <span class=\"token string\">&#034;data01&#034;<\/span> successfully removed<\/p>\n<p><span class=\"token comment\"># \u5220\u9664 VG<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vgremove webapp dbapp<\/span><br \/>\n  Volume group <span class=\"token string\">&#034;webapp&#034;<\/span> successfully removed<br \/>\n  Volume group <span class=\"token string\">&#034;dbapp&#034;<\/span> successfully removed<\/p>\n<p><span class=\"token comment\"># \u5220\u9664 PV<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvremove \/dev\/sd{b..d}<\/span><br \/>\n  Labels on physical volume <span class=\"token string\">&#034;\/dev\/sdb&#034;<\/span> successfully wiped.<br \/>\n  Labels on physical volume <span class=\"token string\">&#034;\/dev\/sdc&#034;<\/span> successfully wiped.<br \/>\n  Labels on physical volume <span class=\"token string\">&#034;\/dev\/sdd&#034;<\/span> successfully wiped.<\/p>\n<h4>\u6269\u5c55\u548c\u7f29\u51cf\u5377\u7ec4<\/h4>\n<h5>\u73af\u5883\u51c6\u5907<\/h5>\n<p><span class=\"token comment\"># \u521b\u5efa\u5377\u7ec4 webapp \u5e76\u521b\u5efa\u903b\u8f91\u5377 webapp01&#xff08;10G&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vgcreate webapp \/dev\/sdb<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvcreate -n webapp01 -L 10G webapp<\/span><\/p>\n<h5>\u6269\u5c55\u5377\u7ec4<\/h5>\n<p>\u5982\u679c\u5377\u7ec4\u7a7a\u95f4\u4e0d\u8db3&#xff0c;\u53ef\u4ee5\u6dfb\u52a0\u65b0\u7684\u7269\u7406\u5377\u5230\u5377\u7ec4\u4e2d\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vgextend webapp \/dev\/sd{c,d}<\/span><br \/>\n  Physical volume <span class=\"token string\">&#034;\/dev\/sdc&#034;<\/span> successfully created.<br \/>\n  Physical volume <span class=\"token string\">&#034;\/dev\/sdd&#034;<\/span> successfully created.<br \/>\n  Volume group <span class=\"token string\">&#034;webapp&#034;<\/span> successfully extended<\/p>\n<h5>\u7f29\u51cf\u5377\u7ec4<\/h5>\n<p>\u82e5\u8981\u4ece\u5377\u7ec4\u4e2d\u79fb\u9664\u7269\u7406\u5377&#xff0c;\u5fc5\u987b\u786e\u4fdd\u8be5\u7269\u7406\u5377\u4e0a\u7684\u6570\u636e\u5df2\u8fc1\u79fb\u5230\u5176\u4ed6\u7269\u7406\u5377\u3002<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u7269\u7406\u5377\u4f7f\u7528\u72b6\u6001<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvs<\/span><br \/>\n  PV         VG     Fmt  Attr PSize   PFree<br \/>\n  \/dev\/sdb   webapp   lvm2 a&#8211;  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g <span class=\"token operator\">&lt;<\/span><span class=\"token number\">10<\/span>.00g<br \/>\n  \/dev\/sdc   webapp   lvm2 a&#8211;  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g<br \/>\n  \/dev\/sdd   webapp   lvm2 a&#8211;  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g<\/p>\n<p><span class=\"token comment\"># \u5c1d\u8bd5\u79fb\u9664 \/dev\/sdb&#xff08;\u5931\u8d25&#xff0c;\u56e0\u4e3a\u8be5 PV \u6b63\u5728\u4f7f\u7528&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vgreduce webapp \/dev\/sdb<\/span><br \/>\n  Physical volume <span class=\"token string\">&#034;\/dev\/sdb&#034;<\/span> still <span class=\"token keyword\">in<\/span> use<\/p>\n<p><span class=\"token comment\"># \u5c06 \/dev\/sdb \u4e0a\u7684\u6570\u636e\u8fc1\u79fb\u5230\u5176\u4ed6 PV<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvmove \/dev\/sdb<\/span><br \/>\n<span class=\"token comment\"># \u6216\u8005\u8fc1\u79fb\u5230\u6307\u5b9a PV<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvmove \/dev\/sdb \/dev\/sdd<\/span><br \/>\n  \/dev\/sdb: Moved: <span class=\"token number\">100.00<\/span>%<\/p>\n<p><span class=\"token comment\"># \u518d\u6b21\u67e5\u770b&#xff0c;\/dev\/sdb \u5df2\u7a7a\u95f2<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvs<\/span><br \/>\n  PV         VG     Fmt  Attr PSize   PFree<br \/>\n  \/dev\/sdb   webapp   lvm2 a&#8211;  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g<br \/>\n  \/dev\/sdc   webapp   lvm2 a&#8211;  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g<br \/>\n  \/dev\/sdd   webapp   lvm2 a&#8211;  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g <span class=\"token operator\">&lt;<\/span><span class=\"token number\">10<\/span>.00g<\/p>\n<p><span class=\"token comment\"># \u6210\u529f\u79fb\u9664<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vgreduce webapp \/dev\/sdb<\/span><br \/>\n  Removed <span class=\"token string\">&#034;\/dev\/sdb&#034;<\/span> from volume group <span class=\"token string\">&#034;webapp&#034;<\/span><\/p>\n<h5>\u6269\u5c55\u903b\u8f91\u5377<\/h5>\n<p>\u5f53\u5377\u7ec4\u7a7a\u95f4\u5145\u8db3\u65f6&#xff0c;\u53ef\u4ee5\u76f4\u63a5\u6269\u5c55\u903b\u8f91\u5377\u7684\u5927\u5c0f\u3002<\/p>\n<p><span class=\"token comment\"># \u7ed9\u903b\u8f91\u5377\u589e\u52a0 2G \u7a7a\u95f4<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvextend -L &#043;2G \/dev\/webapp\/webapp01<\/span><br \/>\n  Size of logical volume webapp\/webapp01 changed from <span class=\"token number\">10.00<\/span> GiB <span class=\"token punctuation\">(<\/span><span class=\"token number\">2560<\/span> extents<span class=\"token punctuation\">)<\/span> to <span class=\"token number\">12.00<\/span> GiB <span class=\"token punctuation\">(<\/span><span class=\"token number\">3072<\/span> extents<span class=\"token punctuation\">)<\/span>.<br \/>\n  Logical volume webapp\/webapp01 successfully resized.<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvs \/dev\/webapp\/webapp01<\/span><br \/>\n  LV       VG     Attr       LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert<br \/>\n  webapp01 webapp -wi-a&#8212;&#8211; <span class=\"token number\">12<\/span>.00g<\/p>\n<h5>\u7f29\u51cf\u903b\u8f91\u5377<\/h5>\n<p>\u7f29\u51cf\u903b\u8f91\u5377\u6709\u6570\u636e\u4e22\u5931\u98ce\u9669&#xff0c;\u64cd\u4f5c\u524d\u9700\u8c28\u614e\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvreduce -L -2G \/dev\/webapp\/webapp01<\/span><br \/>\n  WARNING: Reducing active logical volume to <span class=\"token number\">10.00<\/span> GiB.<br \/>\n  THIS MAY DESTROY YOUR DATA <span class=\"token punctuation\">(<\/span>filesystem etc.<span class=\"token punctuation\">)<\/span><br \/>\nDo you really want to reduce webapp\/webapp01? <span class=\"token punctuation\">[<\/span>y\/n<span class=\"token punctuation\">]<\/span>: <span class=\"token variable\"><span class=\"token variable\">&#096;<\/span>y<span class=\"token variable\">&#096;<\/span><\/span><br \/>\n  Size of logical volume webapp\/webapp01 changed from <span class=\"token number\">12.00<\/span> GiB <span class=\"token punctuation\">(<\/span><span class=\"token number\">3072<\/span> extents<span class=\"token punctuation\">)<\/span> to <span class=\"token number\">10.00<\/span> GiB <span class=\"token punctuation\">(<\/span><span class=\"token number\">2560<\/span> extents<span class=\"token punctuation\">)<\/span>.<\/p>\n<h5>\u6269\u5c55 XFS \u6587\u4ef6\u7cfb\u7edf<\/h5>\n<p>XFS \u6587\u4ef6\u7cfb\u7edf\u53ea\u652f\u6301\u6269\u5c55&#xff0c;\u4e0d\u652f\u6301\u7f29\u51cf\u3002<\/p>\n<p><span class=\"token comment\"># \u683c\u5f0f\u5316\u5e76\u6302\u8f7d<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mkfs.xfs \/dev\/webapp\/webapp01<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mount \/dev\/webapp\/webapp01 \/usr\/share\/nginx\/html<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># cp \/etc\/host* \/usr\/share\/nginx\/html<\/span><\/p>\n<p><span class=\"token comment\"># \u6269\u5c55\u903b\u8f91\u5377&#xff08;\u4f8b\u5982\u6269\u5c55\u5230 15G&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvextend -L 15G \/dev\/webapp\/webapp01<\/span><\/p>\n<p><span class=\"token comment\"># \u6269\u5c55 XFS \u6587\u4ef6\u7cfb\u7edf<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># xfs_growfs \/usr\/share\/nginx\/html<\/span><\/p>\n<p><span class=\"token comment\"># \u9a8c\u8bc1<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># df -h \/usr\/share\/nginx\/html<\/span><br \/>\n\u6587\u4ef6\u7cfb\u7edf                     \u5bb9\u91cf  \u5df2\u7528  \u53ef\u7528 \u5df2\u7528% \u6302\u8f7d\u70b9<br \/>\n\/dev\/mapper\/webapp-webapp01   15G  140M   15G    <span class=\"token number\">1<\/span>% \/usr\/share\/nginx\/html<\/p>\n<p><span class=\"token comment\"># \u4e00\u6761\u547d\u4ee4\u540c\u65f6\u6269\u5c55 LV \u548c\u6587\u4ef6\u7cfb\u7edf<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvextend -rL 20G \/dev\/webapp\/webapp01<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvs \/dev\/webapp\/webapp01<\/span><br \/>\n  LV       VG     Attr       LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert<br \/>\n  webapp01 webapp -wi-ao&#8212;- <span class=\"token number\">20<\/span>.00g<br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># df -h \/usr\/share\/nginx\/html<\/span><br \/>\n\u6587\u4ef6\u7cfb\u7edf                     \u5bb9\u91cf  \u5df2\u7528  \u53ef\u7528 \u5df2\u7528% \u6302\u8f7d\u70b9<br \/>\n\/dev\/mapper\/webapp-webapp01   20G  176M   20G    <span class=\"token number\">1<\/span>% \/usr\/share\/nginx\/html<\/p>\n<h5>\u6269\u5c55 EXT4 \u6587\u4ef6\u7cfb\u7edf<\/h5>\n<p>EXT4 \u65e2\u652f\u6301\u6269\u5c55\u4e5f\u652f\u6301\u7f29\u51cf\u3002<\/p>\n<p><span class=\"token comment\"># \u91cd\u65b0\u683c\u5f0f\u5316\u4e3a EXT4 \u5e76\u6302\u8f7d<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># umount \/usr\/share\/nginx\/html<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mkfs.ext4 \/dev\/webapp\/webapp01<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mount \/dev\/webapp\/webapp01 \/usr\/share\/nginx\/html<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># df -h \/usr\/share\/nginx\/html<\/span><br \/>\n\u6587\u4ef6\u7cfb\u7edf                     \u5bb9\u91cf  \u5df2\u7528  \u53ef\u7528 \u5df2\u7528% \u6302\u8f7d\u70b9<br \/>\n\/dev\/mapper\/webapp-webapp01   20G   24K   19G    <span class=\"token number\">1<\/span>% \/usr\/share\/nginx\/html<br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># cp \/etc\/host* \/usr\/share\/nginx\/html<\/span><\/p>\n<p><span class=\"token comment\"># \u6269\u5c55\u903b\u8f91\u5377<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvextend -L 25G \/dev\/webapp\/webapp01<\/span><\/p>\n<p><span class=\"token comment\"># \u6269\u5c55 EXT4 \u6587\u4ef6\u7cfb\u7edf<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># resize2fs \/dev\/webapp\/webapp01<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># df -h \/usr\/share\/nginx\/html<\/span><br \/>\n\u6587\u4ef6\u7cfb\u7edf                     \u5bb9\u91cf  \u5df2\u7528  \u53ef\u7528 \u5df2\u7528% \u6302\u8f7d\u70b9<br \/>\n\/dev\/mapper\/webapp-webapp01   25G   36K   24G    <span class=\"token number\">1<\/span>% \/usr\/share\/nginx\/html<\/p>\n<p><span class=\"token comment\"># \u4e00\u6761\u547d\u4ee4\u540c\u65f6\u6269\u5c55<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvextend -rL 30G \/dev\/webapp\/webapp01<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># df -h \/usr\/share\/nginx\/html<\/span><br \/>\n\u6587\u4ef6\u7cfb\u7edf                     \u5bb9\u91cf  \u5df2\u7528  \u53ef\u7528 \u5df2\u7528% \u6302\u8f7d\u70b9<br \/>\n\/dev\/mapper\/webapp-webapp01   30G   36K   28G    <span class=\"token number\">1<\/span>% \/usr\/share\/nginx\/html<\/p>\n<h5>\u7f29\u51cf EXT4 \u6587\u4ef6\u7cfb\u7edf<\/h5>\n<p>\u7f29\u51cf EXT4 \u9700\u6ce8\u610f&#xff1a;<\/p>\n<ul>\n<li>\u5fc5\u987b\u79bb\u7ebf\u64cd\u4f5c&#xff0c;\u5373\u5378\u8f7d\u6587\u4ef6\u7cfb\u7edf\u3002<\/li>\n<li>\u7f29\u51cf\u540e\u7684\u5bb9\u91cf\u4e0d\u80fd\u5c0f\u4e8e\u5f53\u524d\u5df2\u7528\u7a7a\u95f4\u3002<\/li>\n<\/ul>\n<p>\u6b65\u9aa4&#xff1a;<\/p>\n<li>\u5378\u8f7d\u6587\u4ef6\u7cfb\u7edf<\/li>\n<li>\u68c0\u67e5\u6587\u4ef6\u7cfb\u7edf&#xff08;e2fsck -f&#xff09;<\/li>\n<li>\u7f29\u5c0f\u6587\u4ef6\u7cfb\u7edf&#xff08;resize2fs&#xff09;<\/li>\n<li>\u7f29\u5c0f\u903b\u8f91\u5377&#xff08;lvreduce&#xff09;<\/li>\n<li>\u91cd\u65b0\u6302\u8f7d\u9a8c\u8bc1<\/li>\n<p><span class=\"token comment\"># \u5378\u8f7d<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># umount \/usr\/share\/nginx\/html<\/span><\/p>\n<p><span class=\"token comment\"># \u68c0\u67e5\u6587\u4ef6\u7cfb\u7edf<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># e2fsck -f \/dev\/webapp\/webapp01<\/span><br \/>\ne2fsck <span class=\"token number\">1.42<\/span>.9 <span class=\"token punctuation\">(<\/span><span class=\"token number\">28<\/span>-Dec-2013<span class=\"token punctuation\">)<\/span><br \/>\n\u7b2c\u4e00\u6b65: \u68c0\u67e5inode,\u5757,\u548c\u5927\u5c0f<br \/>\n\u7b2c\u4e8c\u6b65: \u68c0\u67e5\u76ee\u5f55\u7ed3\u6784<br \/>\n\u7b2c3\u6b65: \u68c0\u67e5\u76ee\u5f55\u8fde\u63a5\u6027<br \/>\nPass <span class=\"token number\">4<\/span>: Checking reference counts<br \/>\n\u7b2c5\u6b65: \u68c0\u67e5\u7c07\u6982\u8981\u4fe1\u606f<br \/>\n\/dev\/webapp\/webapp01&#xff1a;14\/1966080 \u6587\u4ef6&#xff08;0.0% \u4e3a\u975e\u8fde\u7eed\u7684&#xff09;&#xff0c; <span class=\"token number\">167445<\/span>\/7864320 \u5757<\/p>\n<p><span class=\"token comment\"># \u7f29\u5c0f\u6587\u4ef6\u7cfb\u7edf\u5230 10G<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># resize2fs \/dev\/webapp\/webapp01 10G<\/span><br \/>\nresize2fs <span class=\"token number\">1.45<\/span>.6 <span class=\"token punctuation\">(<\/span><span class=\"token number\">20<\/span>-Mar-2020<span class=\"token punctuation\">)<\/span><br \/>\n\u5c06 \/dev\/webapp\/webapp01 \u4e0a\u7684\u6587\u4ef6\u7cfb\u7edf\u8c03\u6574\u4e3a <span class=\"token number\">2621440<\/span> \u4e2a\u5757&#xff08;\u6bcf\u5757 4k&#xff09;\u3002<br \/>\n\/dev\/webapp\/webapp01 \u4e0a\u7684\u6587\u4ef6\u7cfb\u7edf\u73b0\u5728\u4e3a <span class=\"token number\">2621440<\/span> \u4e2a\u5757&#xff08;\u6bcf\u5757 4k&#xff09;\u3002<\/p>\n<p><span class=\"token comment\"># \u7f29\u5c0f\u903b\u8f91\u5377\u5230 10G<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvreduce -L 10G \/dev\/webapp\/webapp01<\/span><br \/>\n  WARNING: Reducing active logical volume to <span class=\"token number\">10.00<\/span> GiB.<br \/>\n  THIS MAY DESTROY YOUR DATA <span class=\"token punctuation\">(<\/span>filesystem etc.<span class=\"token punctuation\">)<\/span><br \/>\nDo you really want to reduce webapp\/webapp01? <span class=\"token punctuation\">[<\/span>y\/n<span class=\"token punctuation\">]<\/span>: <span class=\"token variable\"><span class=\"token variable\">&#096;<\/span>y<span class=\"token variable\">&#096;<\/span><\/span><br \/>\n  Size of logical volume webapp\/webapp01 changed from <span class=\"token number\">30.00<\/span> GiB <span class=\"token punctuation\">(<\/span><span class=\"token number\">7680<\/span> extents<span class=\"token punctuation\">)<\/span> to <span class=\"token number\">10.00<\/span> GiB <span class=\"token punctuation\">(<\/span><span class=\"token number\">2560<\/span> extents<span class=\"token punctuation\">)<\/span>.<\/p>\n<p><span class=\"token comment\"># \u91cd\u65b0\u6302\u8f7d\u9a8c\u8bc1<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mount \/dev\/webapp\/webapp01 \/usr\/share\/nginx\/html<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># df -h \/usr\/share\/nginx\/html<\/span><br \/>\n\u6587\u4ef6\u7cfb\u7edf                     \u5bb9\u91cf  \u5df2\u7528  \u53ef\u7528 \u5df2\u7528% \u6302\u8f7d\u70b9<br \/>\n\/dev\/mapper\/webapp-webapp01  <span class=\"token number\">9<\/span>.7G   36K  <span class=\"token number\">9<\/span>.3G    <span class=\"token number\">1<\/span>% \/usr\/share\/nginx\/html<br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># ls \/usr\/share\/nginx\/html<\/span><br \/>\nhost.conf  <span class=\"token function\">hostname<\/span>  hosts  lost&#043;found<\/p>\n<p>\u8865\u5145\u8bf4\u660e&#xff1a;\u5982\u679c\u6587\u4ef6\u7cfb\u7edf\u76f4\u63a5\u6784\u5efa\u5728\u78c1\u76d8\u5206\u533a\u4e0a&#xff0c;\u6269\u5c55\u548c\u7f29\u51cf\u64cd\u4f5c\u6d41\u7a0b\u4e0e\u6b64\u76f8\u540c\u3002<\/p>\n<h5>\u903b\u8f91\u5377\u5feb\u7167<\/h5>\n<p>\u5feb\u7167\u53ef\u4ee5\u8bb0\u5f55\u67d0\u4e2a\u65f6\u523b\u903b\u8f91\u5377\u7684\u6570\u636e\u72b6\u6001&#xff0c;\u4fbf\u4e8e\u6570\u636e\u6062\u590d\u3002<\/p>\n<p><span class=\"token comment\"># \u521b\u5efa\u5feb\u7167&#xff08;\u5feb\u7167\u5927\u5c0f\u4e0d\u80fd\u5c0f\u4e8e\u539f LV&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvcreate -s -n webapp01-snap1 -L 10G \/dev\/webapp\/webapp01<\/span><br \/>\n  Logical volume <span class=\"token string\">&#034;webapp01-snap1&#034;<\/span> created.<\/p>\n<p><span class=\"token comment\"># \u6302\u8f7d\u5feb\u7167<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mount \/dev\/webapp\/webapp01-snap1 \/webapp\/webapp01\/<\/span><\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u5feb\u7167\u4e2d\u7684\u6570\u636e<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># ls \/webapp\/webapp01\/<\/span><br \/>\nhost.conf  <span class=\"token function\">hostname<\/span>  hosts  hosts.allow  hosts.deny<\/p>\n<p><span class=\"token comment\"># \u5728\u539f LV \u4e2d\u521b\u5efa\u65b0\u6570\u636e<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># echo hello world &gt; \/webapp\/webapp01\/hello.txt<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># cat \/webapp\/webapp01\/hello.txt<\/span><br \/>\nhello world<\/p>\n<p>\u6b64\u65f6&#xff0c;\u5feb\u7167\u4e2d\u4ecd\u7136\u4fdd\u5b58\u7740\u521b\u5efa\u65f6\u523b\u7684\u65e7\u6570\u636e&#xff0c;\u53ef\u7528\u4e8e\u6062\u590d\u3002<\/p>\n<h4>RAID \u903b\u8f91\u5377<\/h4>\n<p>LVM \u4e5f\u652f\u6301\u521b\u5efa RAID \u7c7b\u578b\u7684\u903b\u8f91\u5377&#xff08;\u5982 RAID1\u3001RAID5&#xff09;&#xff0c;\u63d0\u4f9b\u786c\u4ef6\u7ea7\u522b\u7684\u6570\u636e\u5197\u4f59\u3002<\/p>\n<h5>\u521b\u5efa RAID1 \u903b\u8f91\u5377<\/h5>\n<p><span class=\"token comment\"># \u73af\u5883\u6e05\u7406&#xff08;\u5378\u8f7d\u5e76\u5220\u9664\u4e4b\u524d\u7684 LV&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># umount \/webapp\/webapp0<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># umount \/usr\/share\/nginx\/html<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvremove \/dev\/webapp\/webapp01*<\/span><\/p>\n<p><span class=\"token comment\"># \u521b\u5efa RAID1 \u903b\u8f91\u5377&#xff08;\u9700\u8981\u81f3\u5c11\u4e24\u5757 PV&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvcreate &#8211;type raid1 -n webapp01 -L 15G webapp<\/span><\/p>\n<p><span class=\"token comment\"># \u683c\u5f0f\u5316\u548c\u6302\u8f7d<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mkfs.xfs \/dev\/webapp\/webapp01<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mount \/dev\/webapp\/webapp01 \/usr\/share\/nginx\/html\/<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># cp \/etc\/ho* \/usr\/share\/nginx\/html\/<\/span><\/p>\n<h5>\u6a21\u62df\u6545\u969c\u4e0e\u4fee\u590d<\/h5>\n<p><span class=\"token comment\"># \u6a21\u62df\u786c\u76d8\u635f\u574f&#xff08;\u5199\u5165\u9519\u8bef\u6570\u636e&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dd if&#061;\/dev\/zero of&#061;\/dev\/sdd bs&#061;1M count&#061;256<\/span><\/p>\n<p><span class=\"token comment\"># \u6b64\u65f6\u6587\u4ef6\u7cfb\u7edf\u4ecd\u53ef\u6b63\u5e38\u8bbf\u95ee&#xff08;RAID1 \u5bb9\u9519&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># ls \/usr\/share\/nginx\/html\/<\/span><br \/>\nhost.conf  <span class=\"token function\">hostname<\/span>  hosts  hosts.allow  hosts.deny<\/p>\n<p><span class=\"token comment\"># \u5378\u8f7d\u5e76\u91cd\u65b0\u6302\u8f7d&#xff0c;\u4f9d\u7136\u6b63\u5e38<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># umount \/usr\/share\/nginx\/html<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># mount \/dev\/webapp\/webapp01 \/usr\/share\/nginx\/html\/<\/span><\/p>\n<p><span class=\"token comment\"># \u4fee\u590d RAID<\/span><br \/>\n<span class=\"token comment\"># 1. \u5220\u9664\u4e22\u5931\u7684\u7269\u7406\u5377&#xff08;VG \u4e2d\u79fb\u9664\u6545\u969c PV&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vgreduce &#8211;removemissing webapp &#8211;force<\/span><\/p>\n<p><span class=\"token comment\"># 2. \u5c06\u539f\u6545\u969c\u76d8\u91cd\u65b0\u52a0\u5165\u5377\u7ec4&#xff08;\u6216\u6362\u65b0\u76d8\u540e\u52a0\u5165&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vgextend webapp \/dev\/sdd<\/span><\/p>\n<p><span class=\"token comment\"># 3. \u4fee\u590d RAID1 \u903b\u8f91\u5377<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># lvconvert &#8211;repair \/dev\/webapp\/webapp01<\/span><\/p>\n<p><span class=\"token comment\"># 4. \u626b\u63cf\u7269\u7406\u5377\u53d8\u5316<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvscan<\/span><\/p>\n<p><span class=\"token comment\"># 5. \u9a8c\u8bc1<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;server-xianyu ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># pvs|grep webap<\/span><br \/>\n  \/dev\/sdb   webapp lvm2 a&#8211;  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g   <span class=\"token number\">4<\/span>.99g<br \/>\n  \/dev\/sdc   webapp lvm2 a&#8211;  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g   <span class=\"token number\">4<\/span>.99g<br \/>\n  \/dev\/sdd   webapp lvm2 a&#8211;  <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g <span class=\"token operator\">&lt;<\/span><span class=\"token number\">20<\/span>.00g<\/p>\n<h5>\u521b\u5efa RAID5 \u903b\u8f91\u5377\u793a\u4f8b<\/h5>\n<p><span class=\"token comment\"># \u521b\u5efa\u4e00\u4e2a RAID5 \u903b\u8f91\u5377&#xff0c;\u53ef\u7528\u5927\u5c0f 5GiB&#xff0c;3 \u6761\u5e26&#xff0c;\u6761\u5e26\u5927\u5c0f 64KiB&#xff0c;\u5171 4 \u4e2a\u8bbe\u5907&#xff08;\u542b 1 \u4e2a\u5947\u5076\u6821\u9a8c&#xff09;<\/span><br \/>\nlvcreate <span class=\"token parameter variable\">&#8211;type<\/span> raid5 <span class=\"token parameter variable\">-L<\/span> 5G <span class=\"token parameter variable\">-i<\/span> <span class=\"token number\">3<\/span> <span class=\"token parameter variable\">-I<\/span> <span class=\"token number\">64<\/span> <span class=\"token parameter variable\">-n<\/span> mylv vg00<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u76ee\u5f55Linux \u78c1\u76d8\u5206\u533a\u7ba1\u7406 | RAID\u5b58\u50a8\u6280\u672f | \u903b\u8f91\u5377\u7ba1\u7406\u78c1\u76d8\u5206\u533a\u7ba1\u7406\u4e00\u3001 GPT \u5206\u533a\u65b9\u6848\u6df1\u5ea6\u89e3\u67901. \u4e3a\u4ec0\u4e48\u9700\u8981 GPT&#xff1f;2. GPT \u5206\u533a\u8868\u7ed3\u6784&#xff08;LBA \u5e03\u5c40&#xff09;\u4e8c\u3001 \u78c1\u76d8\u5206\u533a\u7ba1\u7406\u5de5\u5177\u5b9e\u62181. gdisk \u5de5\u5177\u7ba1\u7406 GPT \u78c1\u76d81.1 \u67e5\u770b\u5206\u533a\u8868\u4e0e\u8f6c\u6362\u4e3a GPT1.2 \u521b\u5efa\u65b0\u5206\u533a1.3 \u66f4\u6539\u5206\u533a\u540d\u79f0\u4e0e\u67e5\u770b\u8be6\u60c51.4 \u5220\u9664\u5206\u533a2. wipefs \u5de5\u5177&#xff1a;\u5f7b\u5e95\u6e05\u9664\u78c1\u76d8\u5143\u6570\u636e3. parted \u5de5\u5177&amp;#xff1a<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[352,58,43,44],"topic":[],"class_list":["post-89083","post","type-post","status-publish","format-standard","hentry","category-server","tag-bash","tag-linux","tag-43","tag-44"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Linux \u78c1\u76d8\u5206\u533a\u7ba1\u7406 | RAID\u5b58\u50a8\u6280\u672f | \u903b\u8f91\u5377\u7ba1\u7406 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/89083.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux \u78c1\u76d8\u5206\u533a\u7ba1\u7406 | RAID\u5b58\u50a8\u6280\u672f | \u903b\u8f91\u5377\u7ba1\u7406 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u76ee\u5f55Linux \u78c1\u76d8\u5206\u533a\u7ba1\u7406 | RAID\u5b58\u50a8\u6280\u672f | \u903b\u8f91\u5377\u7ba1\u7406\u78c1\u76d8\u5206\u533a\u7ba1\u7406\u4e00\u3001 GPT \u5206\u533a\u65b9\u6848\u6df1\u5ea6\u89e3\u67901. \u4e3a\u4ec0\u4e48\u9700\u8981 GPT&#xff1f;2. 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