{"id":457,"date":"2016-02-27T10:57:42","date_gmt":"2016-02-27T02:57:42","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=457"},"modified":"2016-03-21T09:25:05","modified_gmt":"2016-03-21T01:25:05","slug":"lvm%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5%e3%80%81%e7%ae%a1%e7%90%86","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/fuwuqi\/lvm%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5%e3%80%81%e7%ae%a1%e7%90%86\/","title":{"rendered":"LVM\u57fa\u672c\u6982\u5ff5\u3001\u7ba1\u7406"},"content":{"rendered":"<p>\u4e00\u3001\u4f20\u7edf\u78c1\u76d8\u7ba1\u7406\u7684\u95ee\u9898<\/p>\n<p>\u5f53\u5206\u533a\u5927\u5c0f\u4e0d\u591f\u7528\u65f6\u65e0\u6cd5\u6269\u5c55\u5176\u5927\u5c0f\uff0c\u53ea\u80fd\u901a\u8fc7\u6dfb\u52a0\u78c1\u76d8\u3001\u521b\u5efa\u65b0\u7684\u5206\u533a\u6765\u6269\u5145\u7a7a\u95f4\uff0c\u4f46\u662f\u65b0\u6dfb\u52a0\u8fdb\u6765\u7684\u786c\u76d8\u662f\u4f5c\u4e3a\u72ec\u7acb\u6587\u4ef6\u7cfb\u7edf\u5b58\u5728\u7684\uff0c\u539f\u6709\u7684\u6587\u4ef6\u7cfb\u7edf\u5e76\u672a\u5f97\u5230\u6269\u5145\uff0c\u4e0a\u5c42\u5e94\u7528\u5f88\u591a\u65f6\u5019\u53ea\u80fd\u8bbf\u95ee\u4e00\u4e2a\u6587\u4ef6\u7cfb\u7edf\u3002\u53ea\u80fd\u8ba9\u73b0\u6709\u78c1\u76d8\u4e0b\u7ebf\uff0c\u6362\u4e0a\u65b0\u7684\u78c1\u76d8\u4e4b\u540e\uff0c\u518d\u5c06\u539f\u59cb\u6570\u636e\u5bfc\u5165\u3002<\/p>\n<p>\u4e8c\u3001LVM\u903b\u8f91\u5377\u7684\u57fa\u672c\u6982\u5ff5<\/p>\n<p>LVM\uff08Logical volume Manager\uff09\u903b\u8f91\u5377\u7ba1\u7406\u901a\u8fc7\u5c06\u5e95\u5c42\u7269\u7406\u786c\u76d8\u62bd\u8c61\u5c01\u88c5\u8d77\u6765\uff0c\u4ee5\u903b\u8f91\u5377\u7684\u5f62\u5f0f\u8868\u73b0\u7ed9\u4e0a\u5c42\u7cfb\u7edf\uff0c\u903b\u8f91\u5377\u7684\u5927\u5c0f\u53ef\u4ee5\u52a8\u6001\u8c03\u6574\uff0c\u800c\u4e14\u4e0d\u4f1a\u4e22\u5931\u73b0\u6709\u6570\u636e\u3002\u65b0\u52a0\u5165\u7684\u786c\u76d8\u4e5f\u4e0d\u4f1a\u6539\u53d8\u73b0\u6709\u4e0a\u5c42\u7684\u903b\u8f91\u5377\u3002<\/p>\n<p>\u4f5c\u4e3a\u4e00\u79cd\u52a8\u6001\u78c1\u76d8\u7ba1\u7406\u673a\u5236\uff0c\u903b\u8f91\u5377\u6280\u672f\u5927\u5927\u63d0\u9ad8\u4e86\u78c1\u76d8\u7ba1\u7406\u7684\u7075\u6d3b\u6027\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.linuxidc.com\/upload\/2016_01\/160127114149281.png\" alt=\"\" width=\"544\" height=\"155\" \/><\/p>\n<p>PE\uff08physical extend\uff09\u9ed8\u8ba4\u4e3a4MB\u7684\u57fa\u672c\u5757<\/p>\n<p>PV\uff08physical volume\uff09\u786c\u76d8\u6216\u5206\u533a<\/p>\n<p>VG\uff08volume group\uff09\u7531\u4e00\u4e2a\u6216\u591a\u4e2aPV\u7ec4\u6210\u7684\u6574\u4f53<\/p>\n<p>LV\uff08logical volume\uff09\u4eceVG\u4e2d\u5207\u5272\u51fa\u7684\u7a7a\u95f4\u7528\u4e8e\u521b\u5efa\u6587\u4ef6\u7cfb\u7edf<\/p>\n<p>\u4e09\u3001LVM\u521b\u5efa\u8fc7\u7a0b<br \/>\n1.\u7269\u7406\u78c1\u76d8\u88ab\u683c\u5f0f\u5316\u4e3aPV\uff0c\u7a7a\u95f4\u88ab\u5206\u4e3a\u4e00\u4e2a\u4e2aPE<br \/>\n2.\u4e0d\u901a\u7684PV\u52a0\u5165\u540c\u4e00\u4e2aVG\uff0c\u4e0d\u540cPV\u7684PE\u5168\u90e8\u8fdb\u5165VG\u7684PE\u6c60\u5185<br \/>\n3.LV\u57fa\u4e8ePE\u521b\u5efa\uff0c\u5927\u5c0f\u4e3aPE\u7684\u6574\u6570\u500d\uff0c\u7ec4\u6210LV\u7684PE\u53ef\u80fd\u6765\u81ea\u4e0d\u540c\u7269\u7406\u78c1\u76d8<br \/>\n4.LV\u73b0\u5728\u5c31\u76f4\u63a5\u53ef\u4ee5\u683c\u5f0f\u5316\u540e\u6302\u8f7d\u4f7f\u7528\u4e86<br \/>\n5.LV\u7684\u6269\u5145\u7f29\u51cf\u5b9e\u9645\u4e0a\u5c31\u662f\u589e\u52a0\u6216\u51cf\u5c11\u7ec4\u6210\u8be5LV\u7684PE\u7684\u6570\u91cf\u3002\u5176\u8fc7\u7a0b\u4e0d\u4e22\u5931\u539f\u59cb\u6570\u636e<\/p>\n<p>\u56db\u3001\u521b\u5efaLVM<\/p>\n<p>\u5c06\u7269\u7406\u78c1\u76d8\u8bbe\u5907\u521d\u59cb\u5316\u4e3a\u7269\u7406\u5377<\/p>\n<p>pvcreate \/dev\/sdb \/dev\/sdc<\/p>\n<p>\u521b\u5efa\u5377\u7ec4\uff0c\u5e76\u5c06PV\u52a0\u5165\u5377\u7ec4\u4e2d<\/p>\n<p>vgcreate vg0 \/dev\/sdb \/dev\/sdc<\/p>\n<p>\u57fa\u4e8e\u5377\u7ec4\u521b\u5efa\u903b\u8f91\u5377<\/p>\n<p>lvcreate -n lv0 -L 5G vg0<\/p>\n<p>\u4e3a\u521b\u5efa\u597d\u7684\u903b\u8f91\u5377\u521b\u5efa\u6587\u4ef6\u7cfb\u7edf<\/p>\n<p>mkfs.ext4 \/dev\/vg0\/lv0<\/p>\n<p>\u5c06\u683c\u5f0f\u5316\u597d\u7684\u903b\u8f91\u5377\u6302\u8f7d\u4f7f\u7528<\/p>\n<p>mount \/dev\/vg0\/lv0 \/mnt\/<\/p>\n<p>\u5c06\u6302\u8f7d\u4fe1\u606f\u5199\u5165\/etc\/fstab\u4e2d\u91cd\u542f\u4f9d\u7136\u751f\u6548<\/p>\n<p>echo &#8220;\/dev\/vg0\/lv0 \/mnt ext4 defaults 0 0 &#8221; &gt;&gt; \/etc\/fstab<\/p>\n<p>\u4e94\u3001\u67e5\u770bLVM<\/p>\n<p>\u67e5\u770b\u7269\u7406\u5377\u4fe1\u606f\uff1apvs\u3001pvdisplay\uff08\u8be6\u7ec6\uff09<\/p>\n<p>\u67e5\u770b\u5377\u7ec4\u4fe1\u606f\uff1avgs\u3001vgdisplay\uff08\u8be6\u7ec6\uff09<\/p>\n<p>\u67e5\u770b\u903b\u8f91\u5377\u4fe1\u606f\uff1alvs\u3001lvdisplay\uff08\u8be6\u7ec6\uff09<\/p>\n<p>\u516d\u3001\u5220\u9664LVM<\/p>\n<p>\u5220\u9664LV\uff1alvremove \/dev\/vg0\/lv0<\/p>\n<p>\u5220\u9664VG\uff1avgremove vg0<\/p>\n<p>\u5220\u9664PV\uff1apvremove \/dev\/sdb<\/p>\n<p>\u4e03\u3001\u62c9\u4f38\u4e00\u4e2a\u903b\u8f91\u5377<\/p>\n<p>\u903b\u8f91\u5377\u7684\u62c9\u4f38\u64cd\u4f5c\u53ef\u4ee5\u5728\u7ebf\u6267\u884c\uff0c\u4e0d\u9700\u8981\u5378\u8f7d\u903b\u8f91\u5377<\/p>\n<p>\u4fdd\u8bc1VG\u4e2d\u6709\u8db3\u591f\u7684\u7a7a\u95f2\u7a7a\u95f4<\/p>\n<p>vgs\u3001vgdisplay<\/p>\n<p>\u6269\u5145\u903b\u8f91\u5377<\/p>\n<p>lvextend -L +5G \/dev\/vg0\/lv0<\/p>\n<p>\u67e5\u770b\u6269\u5145\u540eLV\u5927\u5c0f<\/p>\n<p>lvs\u3001lvdisplay<\/p>\n<p>\u66f4\u65b0\u6587\u4ef6\u7cfb\u7edf<\/p>\n<p>resize2fs \/dev\/vg0\/lv0<\/p>\n<p>\u67e5\u770b\u66f4\u65b0\u540e\u7684\u6587\u4ef6\u7cfb\u7edf<\/p>\n<p>df \u2013h<\/p>\n<p>\u516b\u3001\u62c9\u4f38\u4e00\u4e2a\u5377\u7ec4<\/p>\n<p>\u5c06\u8981\u6dfb\u52a0\u5230VG\u7684\u786c\u76d8\u683c\u5f0f\u5316\u4e3aPV<\/p>\n<p>pvcreate \/dev\/sdd<\/p>\n<p>\u5c06\u65b0\u7684PV\u6dfb\u52a0\u5230\u6307\u5b9a\u5377\u7ec4\u4e2d<\/p>\n<p>vgextend vg0 \/dev\/sdd<\/p>\n<p>\u67e5\u770b\u6269\u5145\u540eVG\u5927\u5c0f<\/p>\n<p>vgs\u3001vgdisplay<\/p>\n<p>\u4e5d\u3001\u7f29\u5c0f\u4e00\u4e2a\u903b\u8f91\u5377<\/p>\n<p>\u903b\u8f91\u5377\u7684\u7f29\u5c0f\u64cd\u4f5c\u5fc5\u987b\u79bb\u7ebf\u6267\u884c\uff0c\u8981\u5378\u8f7d\u903b\u8f91\u5377<\/p>\n<p>\u5378\u8f7d\u5df2\u7ecf\u6302\u8f7d\u7684\u903b\u8f91\u5377<\/p>\n<p>umount \/dev\/vg0\/lv0<\/p>\n<p>\u7f29\u5c0f\u6587\u4ef6\u7cfb\u7edf\uff08\u539flv0\u4e3a10G\uff09<\/p>\n<p>e2fsck -f \/dev\/vg0\/lv0<\/p>\n<p>resize2fs \/dev\/vg0\/lv0 3G<\/p>\n<p>\u7f29\u5c0fLV<\/p>\n<p>lvreduce -L -7G \/dev\/vg0\/lv0<\/p>\n<p>\u67e5\u770b\u7f29\u5c0f\u540e\u7684LV<\/p>\n<p>lvs\u3001lvdisplay<\/p>\n<p>\u6302\u8f7d<\/p>\n<p>mount \/dev\/vg0\/lv0 \/mnt<\/p>\n<p>\u5341\u3001\u7f29\u5c0f\u5377\u7ec4<\/p>\n<p>\u5c06\u4e00\u4e2aPV\u4ece\u6307\u5b9a\u7ec4\u4e2d\u79fb\u9664<\/p>\n<p>vgreduce vg0 \/dev\/sdd<\/p>\n<p>\u67e5\u770b\u7f29\u5c0f\u540e\u7684\u5377\u7ec4\u5927\u5c0f<\/p>\n<p>vgs\u3001vgdisplay<\/p>\n<p>\u79fb\u9664PV<\/p>\n<p>pvremove \/dev\/sdd<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u4f20\u7edf\u78c1\u76d8\u7ba1\u7406\u7684\u95ee\u9898 \u5f53\u5206\u533a\u5927\u5c0f\u4e0d\u591f\u7528\u65f6\u65e0\u6cd5\u6269\u5c55\u5176\u5927\u5c0f\uff0c\u53ea\u80fd\u901a\u8fc7\u6dfb\u52a0\u78c1\u76d8\u3001\u521b\u5efa\u65b0\u7684\u5206\u533a\u6765\u6269\u5145\u7a7a\u95f4\uff0c\u4f46\u662f\u65b0\u6dfb\u52a0 &#8230; <a title=\"LVM\u57fa\u672c\u6982\u5ff5\u3001\u7ba1\u7406\" class=\"read-more\" href=\"https:\/\/cn.hostease.com\/xueyuan\/jishu\/fuwuqi\/lvm%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5%e3%80%81%e7%ae%a1%e7%90%86\/\" aria-label=\"\u9605\u8bfb LVM\u57fa\u672c\u6982\u5ff5\u3001\u7ba1\u7406\">\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[9],"tags":[38],"class_list":["post-457","post","type-post","status-publish","format-standard","hentry","category-fuwuqi","tag-linux"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/457","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=457"}],"version-history":[{"count":2,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/457\/revisions"}],"predecessor-version":[{"id":527,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/457\/revisions\/527"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=457"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=457"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=457"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}