{"id":34892,"date":"2025-05-01T07:15:46","date_gmt":"2025-04-30T23:15:46","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/34892.html"},"modified":"2025-05-01T07:15:46","modified_gmt":"2025-04-30T23:15:46","slug":"%e6%9c%8d%e5%8a%a1%e5%99%a8ubuntu%e9%95%9c%e5%83%8f%e7%a3%81%e7%9b%98%e7%a9%ba%e9%97%b4%e6%80%8e%e4%b9%88%e7%ae%a1%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/34892.html","title":{"rendered":"\u670d\u52a1\u5668ubuntu\u955c\u50cf\u78c1\u76d8\u7a7a\u95f4\u600e\u4e48\u7ba1\u7406"},"content":{"rendered":"<p>\u5728 Ubuntu \u670d\u52a1\u5668\u4e0a&#xff0c;\u7ba1\u7406\u955c\u50cf\u78c1\u76d8\u7a7a\u95f4\u662f\u7cfb\u7edf\u7ef4\u62a4\u4e2d\u7684\u4e00\u9879\u5173\u952e\u4efb\u52a1&#xff0c;\u5c24\u5176\u662f\u5728\u4f7f\u7528\u865a\u62df\u5316\u6280\u672f\u65f6(\u5982 Docker\u3001LVM\u3001KVM \u7b49)\u3002\u5408\u7406\u7ba1\u7406\u78c1\u76d8\u7a7a\u95f4\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u78c1\u76d8\u7a7a\u95f4\u4e0d\u8db3&#xff0c;\u63d0\u5347\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u3002\u672c\u6587\u5c06\u4e3a\u4f60\u4ecb\u7ecd\u5982\u4f55\u5728 Ubuntu \u7cfb\u7edf\u4e2d\u6709\u6548\u7ba1\u7406\u955c\u50cf\u78c1\u76d8\u7a7a\u95f4&#xff0c;\u6db5\u76d6\u78c1\u76d8\u5206\u533a\u3001\u6587\u4ef6\u7cfb\u7edf\u4f18\u5316\u3001\u7a7a\u95f4\u6e05\u7406\u7b49\u65b9\u9762\u7684\u6280\u5de7\u548c\u65b9\u6cd5\u3002<\/p>\n<p>\u4e00\u3001\u67e5\u770b\u78c1\u76d8\u4f7f\u7528\u60c5\u51b5<\/p>\n<p>\u5728\u8fdb\u884c\u78c1\u76d8\u7a7a\u95f4\u7ba1\u7406\u4e4b\u524d&#xff0c;\u9996\u5148\u8981\u4e86\u89e3\u5f53\u524d\u78c1\u76d8\u7684\u4f7f\u7528\u60c5\u51b5\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e9b\u57fa\u7840\u7684\u547d\u4ee4\u6765\u67e5\u770b\u78c1\u76d8\u7684\u72b6\u6001\u3002<\/p>\n<p>1. \u4f7f\u7528 df \u547d\u4ee4<\/p>\n<p>df \u547d\u4ee4\u7528\u4e8e\u663e\u793a\u78c1\u76d8\u7a7a\u95f4\u7684\u603b\u4f53\u4f7f\u7528\u60c5\u51b5&#xff0c;\u5e38\u7528\u547d\u4ee4\u5982\u4e0b&#xff1a;<\/p>\n<p>df -h <\/p>\n<p>-h&#xff1a;\u4ee5\u4eba\u7c7b\u53ef\u8bfb\u7684\u683c\u5f0f\u663e\u793a\u7ed3\u679c&#xff0c;\u81ea\u52a8\u9009\u62e9\u5408\u9002\u7684\u5355\u4f4d(\u5982 GB \u6216 MB)\u3002<\/p>\n<p>\u8f93\u51fa\u793a\u4f8b&#xff1a;<\/p>\n<p>NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT<br \/>\nsda      8:0    0   50G  0 disk<br \/>\n\u251c\u2500sda1   8:1    0   50G  0 part \/<br \/>\nsdb      8:16   0  100G  0 disk<br \/>\n\u2514\u2500sdb1   8:17   0  100G  0 part \/data<\/p>\n<p>\u89e3\u91ca&#xff1a;<\/p>\n<p>Size&#xff1a;\u78c1\u76d8\u603b\u5927\u5c0f\u3002<\/p>\n<p>Used&#xff1a;\u5df2\u7528\u7a7a\u95f4\u3002<\/p>\n<p>Avail&#xff1a;\u53ef\u7528\u7a7a\u95f4\u3002<\/p>\n<p>Use%&#xff1a;\u78c1\u76d8\u7684\u4f7f\u7528\u7387\u3002<\/p>\n<p>2. \u4f7f\u7528 du \u547d\u4ee4\u67e5\u770b\u76ee\u5f55\u4f7f\u7528\u60c5\u51b5<\/p>\n<p>du(Disk Usage)\u547d\u4ee4\u7528\u4e8e\u67e5\u770b\u6307\u5b9a\u76ee\u5f55\u53ca\u5176\u5b50\u76ee\u5f55\u7684\u78c1\u76d8\u7a7a\u95f4\u4f7f\u7528\u60c5\u51b5\u3002\u4f8b\u5982&#xff1a;<\/p>\n<p>du -sh \/var\/log <\/p>\n<p>-s&#xff1a;\u6c47\u603b\u76ee\u5f55\u4e0b\u6240\u6709\u6587\u4ef6\u548c\u5b50\u76ee\u5f55\u7684\u603b\u4f7f\u7528\u60c5\u51b5\u3002<\/p>\n<p>-h&#xff1a;\u4ee5\u4eba\u7c7b\u53ef\u8bfb\u7684\u65b9\u5f0f\u663e\u793a\u8f93\u51fa\u3002<\/p>\n<p>\u8fd9\u6837&#xff0c;\u4f60\u53ef\u4ee5\u67e5\u770b\u5404\u4e2a\u76ee\u5f55\u7684\u78c1\u76d8\u5360\u7528\u60c5\u51b5&#xff0c;\u4ee5\u4fbf\u66f4\u597d\u5730\u505a\u51fa\u6e05\u7406\u6216\u4f18\u5316\u7684\u51b3\u5b9a\u3002<\/p>\n<p>\u4e8c\u3001\u78c1\u76d8\u5206\u533a\u4e0e\u6302\u8f7d<\/p>\n<p>\u5728 Ubuntu \u4e0a\u5408\u7406\u5730\u5206\u533a\u548c\u6302\u8f7d\u78c1\u76d8\u80fd\u591f\u6709\u6548\u5730\u7ba1\u7406\u78c1\u76d8\u7a7a\u95f4&#xff0c;\u907f\u514d\u56e0\u67d0\u4e2a\u5206\u533a\u7a7a\u95f4\u4e0d\u8db3\u800c\u5bfc\u81f4\u7684\u7cfb\u7edf\u6545\u969c\u3002<\/p>\n<p>1. \u4f7f\u7528 lsblk \u67e5\u770b\u78c1\u76d8\u7ed3\u6784<\/p>\n<p>lsblk \u547d\u4ee4\u663e\u793a\u6240\u6709\u78c1\u76d8\u548c\u5206\u533a\u7684\u7ed3\u6784&#xff0c;\u5305\u62ec\u6302\u8f7d\u70b9\u3002<\/p>\n<p>lsblk <\/p>\n<p>\u8f93\u51fa\u793a\u4f8b&#xff1a;<\/p>\n<p>NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT<br \/>\nsda      8:0    0   50G  0 disk<br \/>\n\u251c\u2500sda1   8:1    0   50G  0 part \/<br \/>\nsdb      8:16   0  100G  0 disk<br \/>\n\u2514\u2500sdb1   8:17   0  100G  0 part \/data<\/p>\n<p>2. \u786e\u5b9a\u78c1\u76d8\u5206\u533a<\/p>\n<p>\u901a\u8fc7 fdisk \u6216 parted \u5de5\u5177&#xff0c;\u53ef\u4ee5\u5728 Ubuntu \u4e0a\u8fdb\u884c\u78c1\u76d8\u5206\u533a\u3002\u4f8b\u5982&#xff0c;\u4f7f\u7528 fdisk \u521b\u5efa\u65b0\u7684\u5206\u533a&#xff1a;<\/p>\n<p>sudo fdisk \/dev\/sdb <\/p>\n<p>\u6839\u636e\u63d0\u793a\u9009\u62e9\u5206\u533a\u7c7b\u578b\u548c\u5927\u5c0f&#xff0c;\u521b\u5efa\u65b0\u7684\u5206\u533a\u3002\u521b\u5efa\u5b8c\u6210\u540e&#xff0c;\u53ef\u4ee5\u4f7f\u7528 mkfs \u547d\u4ee4\u683c\u5f0f\u5316\u78c1\u76d8&#xff1a;<\/p>\n<p>sudo mkfs.ext4 \/dev\/sdb1 <\/p>\n<p>3. \u6302\u8f7d\u78c1\u76d8\u5206\u533a<\/p>\n<p>\u521b\u5efa\u5206\u533a\u5e76\u683c\u5f0f\u5316\u540e&#xff0c;\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539 \/etc\/fstab \u6587\u4ef6\u5c06\u5176\u6302\u8f7d\u5230\u6307\u5b9a\u76ee\u5f55\u3002\u9996\u5148&#xff0c;\u521b\u5efa\u6302\u8f7d\u76ee\u5f55&#xff1a;<\/p>\n<p>sudo mkdir \/mnt\/data <\/p>\n<p>\u7136\u540e&#xff0c;\u901a\u8fc7 mount \u547d\u4ee4\u5c06\u5206\u533a\u6302\u8f7d\u5230\u8be5\u76ee\u5f55&#xff1a;<\/p>\n<p>sudo mount \/dev\/sdb1 \/mnt\/data <\/p>\n<p>\u4e3a\u4e86\u8ba9\u5206\u533a\u5728\u7cfb\u7edf\u91cd\u542f\u540e\u81ea\u52a8\u6302\u8f7d&#xff0c;\u53ef\u4ee5\u5728 \/etc\/fstab \u6587\u4ef6\u4e2d\u6dfb\u52a0\u5982\u4e0b\u884c&#xff1a;<\/p>\n<p>\/dev\/sdb1 \/mnt\/data ext4 defaults 0 2 <\/p>\n<p>\u4e09\u3001\u7ba1\u7406\u955c\u50cf\u78c1\u76d8\u7a7a\u95f4<\/p>\n<p>\u5bf9\u4e8e\u4f7f\u7528\u865a\u62df\u5316\u6216\u5bb9\u5668\u6280\u672f(\u5982 Docker)\u7684\u7cfb\u7edf\u6765\u8bf4&#xff0c;\u955c\u50cf\u78c1\u76d8\u7a7a\u95f4\u7684\u7ba1\u7406\u5c24\u4e3a\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u7ba1\u7406\u955c\u50cf\u548c\u5bb9\u5668\u78c1\u76d8\u7a7a\u95f4\u7684\u5e38\u89c1\u65b9\u6cd5\u3002<\/p>\n<p>1. \u6e05\u7406 Docker \u955c\u50cf\u548c\u5bb9\u5668<\/p>\n<p>Docker \u955c\u50cf\u3001\u5bb9\u5668\u548c\u5377\u53ef\u80fd\u5360\u7528\u5927\u91cf\u78c1\u76d8\u7a7a\u95f4\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u6e05\u7406\u672a\u4f7f\u7528\u7684\u955c\u50cf\u548c\u5bb9\u5668\u3002<\/p>\n<p>\u5220\u9664\u672a\u4f7f\u7528\u7684\u955c\u50cf<\/p>\n<p>\u67e5\u770b\u5f53\u524d\u7cfb\u7edf\u4e0a\u5b58\u50a8\u7684\u6240\u6709\u955c\u50cf&#xff1a;<\/p>\n<p>docker images <\/p>\n<p>\u5220\u9664\u67d0\u4e2a\u955c\u50cf&#xff1a;<\/p>\n<p>docker rmi <\/p>\n<p>\u5220\u9664\u6240\u6709\u672a\u88ab\u4f7f\u7528\u7684\u955c\u50cf&#xff1a;<\/p>\n<p>docker image prune -a <\/p>\n<p>\u5220\u9664\u505c\u6b62\u7684\u5bb9\u5668<\/p>\n<p>\u67e5\u770b\u6240\u6709\u5bb9\u5668&#xff0c;\u5305\u62ec\u505c\u6b62\u7684\u5bb9\u5668&#xff1a;<\/p>\n<p>docker ps -a <\/p>\n<p>\u5220\u9664\u505c\u6b62\u7684\u5bb9\u5668&#xff1a;<\/p>\n<p>docker rm <\/p>\n<p>\u5220\u9664\u6240\u6709\u505c\u6b62\u7684\u5bb9\u5668&#xff1a;<\/p>\n<p>docker container prune <\/p>\n<p>\u5220\u9664\u672a\u4f7f\u7528\u7684\u5377<\/p>\n<p>Docker \u5377\u7528\u4e8e\u5b58\u50a8\u6570\u636e&#xff0c;\u672a\u4f7f\u7528\u7684\u5377\u4e5f\u4f1a\u5360\u7528\u78c1\u76d8\u7a7a\u95f4\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u5220\u9664\u672a\u4f7f\u7528\u7684\u5377&#xff1a;<\/p>\n<p>docker volume prune <\/p>\n<p>2. \u6e05\u7406 APT \u7f13\u5b58<\/p>\n<p>\u5728 Ubuntu \u7cfb\u7edf\u4e2d&#xff0c;APT \u5305\u7ba1\u7406\u5de5\u5177\u4f1a\u7f13\u5b58\u4e0b\u8f7d\u7684\u5305\u6587\u4ef6&#xff0c;\u8fd9\u4e9b\u7f13\u5b58\u53ef\u80fd\u4f1a\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\u5360\u7528\u5927\u91cf\u78c1\u76d8\u7a7a\u95f4\u3002\u53ef\u4ee5\u5b9a\u671f\u6e05\u7406 APT \u7f13\u5b58\u6765\u91ca\u653e\u7a7a\u95f4\u3002<\/p>\n<p>\u6e05\u7406\u672c\u5730\u7f13\u5b58<\/p>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6e05\u7406\u5df2\u4e0b\u8f7d\u7684\u5305\u7f13\u5b58&#xff1a;<\/p>\n<p>sudo apt clean <\/p>\n<p>\u8be5\u547d\u4ee4\u4f1a\u5220\u9664 \/var\/cache\/apt\/archives \u76ee\u5f55\u4e2d\u7684\u6240\u6709\u7f13\u5b58\u6587\u4ef6&#xff0c;\u91ca\u653e\u7a7a\u95f4\u3002<\/p>\n<p>\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u5305<\/p>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5220\u9664\u4e0d\u518d\u9700\u8981\u7684\u5305\u6587\u4ef6&#xff1a;<\/p>\n<p>sudo apt autoremove <\/p>\n<p>3. \u4f7f\u7528 ncdu \u5de5\u5177\u5206\u6790\u78c1\u76d8\u7a7a\u95f4<\/p>\n<p>ncdu(NCurses Disk Usage)\u662f\u4e00\u4e2a\u547d\u4ee4\u884c\u5de5\u5177&#xff0c;\u53ef\u4ee5\u5e2e\u52a9\u4f60\u5feb\u901f\u5206\u6790\u78c1\u76d8\u4f7f\u7528\u60c5\u51b5&#xff0c;\u5e76\u627e\u5230\u5360\u7528\u78c1\u76d8\u7a7a\u95f4\u6700\u591a\u7684\u6587\u4ef6\u548c\u76ee\u5f55\u3002<\/p>\n<p>\u5b89\u88c5 ncdu&#xff1a;<\/p>\n<p>sudo apt install ncdu <\/p>\n<p>\u7136\u540e\u8fd0\u884c&#xff1a;<\/p>\n<p>sudo ncdu \/ <\/p>\n<p>ncdu \u4f1a\u626b\u63cf\u6574\u4e2a\u6587\u4ef6\u7cfb\u7edf\u5e76\u663e\u793a\u78c1\u76d8\u4f7f\u7528\u60c5\u51b5&#xff0c;\u5141\u8bb8\u4f60\u4ea4\u4e92\u5f0f\u5730\u67e5\u770b\u548c\u6e05\u7406\u78c1\u76d8\u7a7a\u95f4\u3002<\/p>\n<p>\u56db\u3001\u76d1\u63a7\u78c1\u76d8\u7a7a\u95f4\u4f7f\u7528<\/p>\n<p>\u5728 Ubuntu \u670d\u52a1\u5668\u4e0a&#xff0c;\u76d1\u63a7\u78c1\u76d8\u7a7a\u95f4\u7684\u4f7f\u7528\u60c5\u51b5\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u53ca\u65f6\u53d1\u73b0\u78c1\u76d8\u7a7a\u95f4\u4e0d\u8db3\u7684\u98ce\u9669&#xff0c;\u5e76\u91c7\u53d6\u9002\u5f53\u7684\u63aa\u65bd\u3002<\/p>\n<p>1. \u4f7f\u7528 watch \u547d\u4ee4\u5b9a\u671f\u67e5\u770b\u78c1\u76d8\u7a7a\u95f4<\/p>\n<p>watch \u547d\u4ee4\u53ef\u4ee5\u8ba9\u4f60\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u6267\u884c\u547d\u4ee4&#xff0c;\u5e76\u663e\u793a\u8f93\u51fa\u7ed3\u679c\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b9a\u671f\u67e5\u770b\u78c1\u76d8\u4f7f\u7528\u60c5\u51b5&#xff1a;<\/p>\n<p>watch -n 60 df -h <\/p>\n<p>\u6b64\u547d\u4ee4\u4f1a\u6bcf 60 \u79d2\u5237\u65b0\u4e00\u6b21\u78c1\u76d8\u7a7a\u95f4\u7684\u4f7f\u7528\u60c5\u51b5\u3002<\/p>\n<p>2. \u8bbe\u7f6e\u78c1\u76d8\u7a7a\u95f4\u8b66\u62a5<\/p>\n<p>\u4f60\u53ef\u4ee5\u4f7f\u7528 cron \u5b9a\u65f6\u4efb\u52a1\u6765\u5b9a\u671f\u68c0\u67e5\u78c1\u76d8\u7a7a\u95f4\u5e76\u53d1\u9001\u8b66\u62a5\u3002\u4f8b\u5982&#xff0c;\u53ef\u4ee5\u8bbe\u7f6e\u4e00\u4e2a cron \u4efb\u52a1&#xff0c;\u6bcf\u65e5\u68c0\u67e5\u78c1\u76d8\u4f7f\u7528\u7387&#xff0c;\u5982\u679c\u78c1\u76d8\u4f7f\u7528\u7387\u8d85\u8fc7\u67d0\u4e2a\u9608\u503c&#xff0c;\u5219\u53d1\u9001\u90ae\u4ef6\u901a\u77e5\u7ba1\u7406\u5458\u3002<\/p>\n<p>\u7f16\u8f91 cron \u6587\u4ef6&#xff1a;<\/p>\n<p>crontab -e <\/p>\n<p>\u6dfb\u52a0\u5982\u4e0b\u4efb\u52a1&#xff1a;<\/p>\n<p>0 8 * * * df -h | awk &#039;$5 &gt; 80 {print $0}&#039; | mail -s &#034;Disk space warning&#034; admin&#064;example.com <\/p>\n<p>\u8be5\u4efb\u52a1\u4f1a\u5728\u6bcf\u5929\u7684 8 \u70b9\u68c0\u67e5\u78c1\u76d8\u7a7a\u95f4\u4f7f\u7528\u60c5\u51b5&#xff0c;\u82e5\u67d0\u4e2a\u5206\u533a\u7684\u4f7f\u7528\u7387\u8d85\u8fc7 80%&#xff0c;\u5219\u53d1\u9001\u90ae\u4ef6\u8b66\u62a5\u3002<\/p>\n<p>\u78c1\u76d8\u7a7a\u95f4\u7684\u7ba1\u7406\u5bf9\u4e8e Ubuntu 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