{"id":18466,"date":"2024-11-18T10:24:03","date_gmt":"2024-11-18T02:24:03","guid":{"rendered":"https:\/\/fwq.ai\/blog\/18466\/"},"modified":"2024-11-18T10:24:03","modified_gmt":"2024-11-18T02:24:03","slug":"centos%e5%88%a0%e9%99%a4%e6%96%87%e4%bb%b6%e5%90%8e%e4%bb%8d%e5%8d%a0%e7%94%a8%e7%a9%ba%e9%97%b4%e6%80%8e%e4%b9%88%e5%8a%9e","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/18466\/","title":{"rendered":"Centos\u5220\u9664\u6587\u4ef6\u540e\u4ecd\u5360\u7528\u7a7a\u95f4\u600e\u4e48\u529e"},"content":{"rendered":"<blockquote><p>\n  \u5df2\u5220\u9664\u6587\u4ef6\u5360\u7528\u7a7a\u95f4\u7684\u89e3\u51b3\u65b9\u6cd5\uff1a\u4f7f\u7528 fstrim \u547d\u4ee4\uff1afstrim -v \/path\/to\/filesystem\u542f\u7528 discard \u9009\u9879\uff1a\u5728 \/etc\/fstab \u4e2d\u6dfb\u52a0 uuid= \/path\/to\/filesystem ext4 discard\u8fd0\u884c\u6587\u4ef6\u7cfb\u7edf\u68c0\u67e5\uff1ae2fsck -f \/path\/to\/filesystem\u91cd\u65b0\u6302\u8f7d\u6587\u4ef6\u7cfb\u7edf\uff1aumount \/path\/to\/filesystem\uff1bmount \/path\/to\/filesystem\u538b\u7f29\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202409\/26\/2024092609250944833.jpg\" class=\"aligncenter\" title=\"Centos\u5220\u9664\u6587\u4ef6\u540e\u4ecd\u5360\u7528\u7a7a\u95f4\u600e\u4e48\u529e\u63d2\u56fe\" alt=\"Centos\u5220\u9664\u6587\u4ef6\u540e\u4ecd\u5360\u7528\u7a7a\u95f4\u600e\u4e48\u529e\u63d2\u56fe\" \/><\/p>\n<p><strong>Centos \u5220\u9664\u6587\u4ef6\u540e\u4ecd\u5360\u7528\u7a7a\u95f4\u7684\u89e3\u51b3\u65b9\u6cd5<\/strong><\/p>\n<p>\u5f53\u6587\u4ef6\u4ece Centos \u7cfb\u7edf\u4e2d\u5220\u9664\u540e\uff0c\u5176\u5360\u7528\u7a7a\u95f4\u4ecd\u53ef\u80fd\u5b58\u5728\u4e8e\u6587\u4ef6\u7cfb\u7edf\u4e2d\uff0c\u5bfc\u81f4\u53ef\u7528\u7a7a\u95f4\u51cf\u5c11\u3002\u8fd9\u662f\u7531\u4e8e Centos \u4f7f\u7528 COW\uff08Copy-on-Write\uff09\u6587\u4ef6\u7cfb\u7edf\uff0c\u8be5\u6587\u4ef6\u7cfb\u7edf\u4f7f\u7528\u5199\u65f6\u590d\u5236\u673a\u5236\u3002<\/p>\n<p>\u5f53\u6587\u4ef6\u88ab\u4fee\u6539\u6216\u5220\u9664\u65f6\uff0cCOW \u6587\u4ef6\u7cfb\u7edf\u4e0d\u4f1a\u7acb\u5373\u8986\u76d6\u539f\u59cb\u6570\u636e\u5757\u3002\u76f8\u53cd\uff0c\u5b83\u4f1a\u521b\u5efa\u6307\u5411\u65b0\u6570\u636e\u7684\u6307\u9488\u5e76\u6807\u8bb0\u539f\u59cb\u6570\u636e\u5757\u4e3a\u5df2\u5220\u9664\u3002\u8fd9\u4f7f\u7cfb\u7edf\u80fd\u591f\u5feb\u901f\u8fdb\u884c\u4fee\u6539\u548c\u5220\u9664\u64cd\u4f5c\uff0c\u800c\u4e0d\u5fc5\u7b49\u5f85\u6574\u4e2a\u6587\u4ef6\u590d\u5236\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6cd5<\/strong><\/p>\n<p>\u8981\u91ca\u653e\u5df2\u5220\u9664\u6587\u4ef6\u5360\u7528\u7684\u7a7a\u95f4\uff0c\u6709\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 fstrim \u547d\u4ee4<\/strong><\/p>\n<p>fstrim \u547d\u4ee4\u53ef\u4ee5\u8bc6\u522b\u5e76\u91ca\u653e\u6587\u4ef6\u7cfb\u7edf\u4e2d\u672a\u4f7f\u7528\u7684\u5757\u3002\u5bf9\u4e8e ext4 \u548c XFS \u6587\u4ef6\u7cfb\u7edf\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre>fstrim -v \/path\/to\/filesystem<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>2. \u542f\u7528 discard \u9009\u9879<\/strong><\/p>\n<p>discard \u9009\u9879\u544a\u8bc9\u6587\u4ef6\u7cfb\u7edf\u5728\u5220\u9664\u6587\u4ef6\u65f6\u7acb\u5373\u4e22\u5f03\u672a\u4f7f\u7528\u7684\u5757\u3002\u8981\u542f\u7528\u6b64\u9009\u9879\uff0c\u8bf7\u5728 \/etc\/fstab \u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre>UUID=&lt;filesystem_UUID&gt; \/path\/to\/filesystem ext4 discard<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>3. \u8fd0\u884c\u6587\u4ef6\u7cfb\u7edf\u68c0\u67e5<\/strong><\/p>\n<p>\u6587\u4ef6\u7cfb\u7edf\u68c0\u67e5\u53ef\u4ee5\u68c0\u6d4b\u5e76\u4fee\u590d\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684\u9519\u8bef\uff0c\u5305\u62ec\u672a\u91ca\u653e\u7684\u5df2\u5220\u9664\u5757\u3002\u5bf9\u4e8e ext4 \u6587\u4ef6\u7cfb\u7edf\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre>e2fsck -f \/path\/to\/filesystem<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>4. \u91cd\u65b0\u6302\u8f7d\u6587\u4ef6\u7cfb\u7edf<\/strong><\/p>\n<p>\u91cd\u65b0\u6302\u8f7d\u6587\u4ef6\u7cfb\u7edf\u53ef\u4ee5\u8feb\u4f7f\u7cfb\u7edf\u91ca\u653e\u672a\u4f7f\u7528\u7684\u5757\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre>umount \/path\/to\/filesystem\nmount \/path\/to\/filesystem<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>5. \u538b\u7f29\u6587\u4ef6\u7cfb\u7edf<\/strong><\/p>\n<p>\u538b\u7f29\u6587\u4ef6\u7cfb\u7edf\u53ef\u4ee5\u91ca\u653e\u672a\u4f7f\u7528\u7684\u7a7a\u95f4\u3002\u5bf9\u4e8e ext4 \u6587\u4ef6\u7cfb\u7edf\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre>e4defrag \/path\/to\/filesystem<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u901a\u8fc7\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u91ca\u653e\u5df2\u5220\u9664\u6587\u4ef6\u5360\u7528\u7684\u7a7a\u95f4\u5e76\u6062\u590d\u53ef\u7528\u7a7a\u95f4\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fCentos\u5220\u9664\u6587\u4ef6\u540e\u4ecd\u5360\u7528\u7a7a\u95f4\u600e\u4e48\u529e\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5df2\u5220\u9664\u6587\u4ef6\u5360\u7528\u7a7a\u95f4\u7684\u89e3\u51b3\u65b9\u6cd5\uff1a\u4f7f\u7528 fstrim \u547d\u4ee4\uff1afstrim -v \/path\/to\/filesystem\u542f\u7528 discard \u9009\u9879\uff1a\u5728 \/etc\/fstab \u4e2d\u6dfb\u52a0 uuid= \/path\/to\/filesystem ext4 discard\u8fd0\u884c\u6587\u4ef6\u7cfb\u7edf\u68c0\u67e5\uff1ae2fsck -f \/path\/to\/filesystem\u91cd\u65b0\u6302\u8f7d\u6587\u4ef6\u7cfb\u7edf\uff1aumount \/path\/to\/filesystem\uff1bmount \/path\/to\/filesystem\u538b\u7f29 Centos \u5220\u9664\u6587\u4ef6\u540e\u4ecd\u5360\u7528\u7a7a\u95f4\u7684\u89e3\u51b3\u65b9\u6cd5 \u5f53\u6587\u4ef6\u4ece Centos \u7cfb\u7edf\u4e2d\u5220\u9664\u540e\uff0c\u5176\u5360\u7528\u7a7a\u95f4\u4ecd\u53ef\u80fd\u5b58\u5728\u4e8e\u6587\u4ef6\u7cfb\u7edf\u4e2d\uff0c\u5bfc\u81f4\u53ef\u7528\u7a7a\u95f4\u51cf\u5c11\u3002\u8fd9\u662f\u7531\u4e8e Centos \u4f7f\u7528 COW\uff08Copy-on-Write\uff09\u6587\u4ef6\u7cfb\u7edf\uff0c\u8be5\u6587\u4ef6\u7cfb\u7edf\u4f7f\u7528\u5199\u65f6\u590d\u5236\u673a\u5236\u3002 \u5f53\u6587\u4ef6\u88ab\u4fee\u6539\u6216\u5220\u9664\u65f6\uff0cCOW \u6587\u4ef6\u7cfb\u7edf\u4e0d\u4f1a\u7acb\u5373\u8986\u76d6\u539f\u59cb\u6570\u636e\u5757\u3002\u76f8\u53cd\uff0c\u5b83\u4f1a\u521b\u5efa\u6307\u5411\u65b0\u6570\u636e\u7684\u6307\u9488\u5e76\u6807\u8bb0\u539f\u59cb\u6570\u636e\u5757\u4e3a\u5df2\u5220\u9664\u3002\u8fd9\u4f7f\u7cfb\u7edf\u80fd\u591f\u5feb\u901f\u8fdb\u884c\u4fee\u6539\u548c\u5220\u9664\u64cd\u4f5c\uff0c\u800c\u4e0d\u5fc5\u7b49\u5f85\u6574\u4e2a\u6587\u4ef6\u590d\u5236\u3002 \u89e3\u51b3\u65b9\u6cd5 \u8981\u91ca\u653e\u5df2\u5220\u9664\u6587\u4ef6\u5360\u7528\u7684\u7a7a\u95f4\uff0c\u6709\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a 1. \u4f7f\u7528 fstrim \u547d\u4ee4 fstrim \u547d\u4ee4\u53ef\u4ee5\u8bc6\u522b\u5e76\u91ca\u653e\u6587\u4ef6\u7cfb\u7edf\u4e2d\u672a\u4f7f\u7528\u7684\u5757\u3002\u5bf9\u4e8e ext4 \u548c XFS \u6587\u4ef6\u7cfb\u7edf\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a fstrim -v \/path\/to\/filesystem \u767b\u5f55\u540e\u590d\u5236 2. \u542f\u7528 discard \u9009\u9879 discard \u9009\u9879\u544a\u8bc9\u6587\u4ef6\u7cfb\u7edf\u5728\u5220\u9664\u6587\u4ef6\u65f6\u7acb\u5373\u4e22\u5f03\u672a\u4f7f\u7528\u7684\u5757\u3002\u8981\u542f\u7528\u6b64\u9009\u9879\uff0c\u8bf7\u5728 \/etc\/fstab \u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a UUID=&lt;filesystem_UUID&gt; \/path\/to\/filesystem ext4 discard [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-18466","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/18466","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=18466"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/18466\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=18466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=18466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=18466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}