{"id":70,"date":"2015-06-30T17:26:21","date_gmt":"2015-06-30T09:26:21","guid":{"rendered":"http:\/\/yyshell.com\/?p=70"},"modified":"2015-09-14T10:10:01","modified_gmt":"2015-09-14T02:10:01","slug":"linux%e5%88%9b%e5%bb%ba%e9%80%bb%e8%be%91%e5%8d%b7%e7%ae%a1%e7%90%86%ef%bc%88lvm%ef%bc%89%e6%95%99%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/yyshell.com\/?p=70","title":{"rendered":"Linux\u521b\u5efa\u903b\u8f91\u5377\u7ba1\u7406\uff08LVM\uff09\u6559\u7a0b"},"content":{"rendered":"<p>LVM\u662f Logical Volume Manager(\u903b\u8f91\u5377\u7ba1\u7406)\u7684\u7b80\u5199\uff0cLVM\u5c06\u4e00\u4e2a\u6216\u591a\u4e2a\u786c\u76d8\u7684\u5206\u533a\u5728\u903b\u8f91\u4e0a\u96c6\u5408\uff0c\u76f8\u5f53\u4e8e\u4e00\u4e2a\u5927\u786c\u76d8\u6765\u4f7f\u7528\uff0c\u5f53\u786c\u76d8\u7684\u7a7a\u95f4\u4e0d\u591f\u4f7f\u7528\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u7ee7\u7eed\u5c06\u5176\u5b83\u7684\u786c\u76d8\u7684\u5206\u533a\u52a0\u5165\u5176\u4e2d\uff0c\u8fd9\u6837\u53ef\u4ee5\u5b9e\u73b0\u78c1\u76d8\u7a7a\u95f4\u7684\u52a8\u6001\u7ba1\u7406\uff0c\u76f8\u5bf9\u4e8e\u666e\u901a\u7684\u78c1\u76d8\u5206\u533a\u6709\u5f88\u5927\u7684\u7075\u6d3b\u6027\u3002<br \/>\n\u5728\u76ee\u524d\u7684\u4e91\u670d\u52a1\u5668\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u5347\u7ea7\u914d\u7f6e\uff0c\u6bd4\u5982\u786c\u76d8\u4ec0\u4e48\u7684\uff0cwindows\u6bd4\u8f83\u65b9\u4fbf\uff0c\u76f4\u63a5\u7528diskpart\u5de5\u5177\u4e0b\u7684extend\u547d\u4ee4\u5c31\u53ef\u4ee5\u641e\u5b9a\uff0c\u800clinux\u5982\u679c\u7528\u666e\u901a\u5206\u533a\u65b9\u5f0f\uff0c\u5c31\u65e0\u6cd5\u6269\u5c55\u5206\u533a\u4e86\uff0c\u6bd4\u8f83\u4e0d\u65b9\u9762\u3002\u7531\u6b64\uff0c\u5efa\u8bae\u4e91\u670d\u52a1\u5668\u7528\u6237\u7528lvm\u6765\u521b\u5efa\u5206\u533a\u3002\u4e0b\u9762\u4ee5centos6\u4e3a\u4f8b\uff0c\u8bb2\u8bb2\u5982\u4f55\u521b\u5efalvm\u3002<\/p>\n<p>\u9996\u5148\uff0c\u767b\u5f55\u7cfb\u7edf\uff0c\u8bb0\u5f55\u521b\u5efa\u5206\u533a\u7b49\u64cd\u4f5c\uff0c\u5fc5\u987b\u5177\u5907root\u6743\u9650\uff01<br \/>\n\u5148\u770b\u770b\u78c1\u76d8\u8bbe\u5907\uff1a<\/p>\n<pre class=\"lang:default decode:true \">[root@cloud ~]# ls \/dev\/sd*\r\n\/dev\/sda \/dev\/sda1 \/dev\/sda2 \/dev\/sdb<\/pre>\n<p>\u6211\u4eec\u53d1\u73b0\u4e86\uff0c\u7cfb\u7edf\u76d8\u5728sda\u8bbe\u5907\u4e0a\uff0c\u6211\u4eec\u8981\u64cd\u4f5c\u7684\u5e94\u8be5\u662fsdb\u8fd9\u4e2a\u786c\u76d8\u8bbe\u5907\u3002<br \/>\n\u7528fdisk\u5206\u533a<\/p>\n<pre class=\"lang:default decode:true \">[root@cloud ~]# fdisk \/dev\/sdb<\/pre>\n<pre class=\"lang:default decode:true \"> Command (m for help): n\r\nCommand action\r\ne extended\r\np primary partition (1-4)\r\np\r\nPartition number (1-4): 1\r\nFirst cylinder (1-8224, default 1):\r\nUsing default value 1\r\nLast cylinder, +cylinders or +size{K,M,G} (1-8224, default 8224):\r\nUsing default value 8224<\/pre>\n<p>\u4e0a\u9762\u4f9d\u6b21\u6309n\uff0cp\u521b\u5efa\u5206\u533a\u540e\uff0c\u6309t\uff0c\u9009\u62e9\u7c7b\u578b\u4e3a8e\uff0c\u4e5f\u5c31\u662flvm\u7c7b\u578b\uff0c\u4e4b\u540e\u6309w\u4fdd\u5b58\u3002\u518d\u6b21\u67e5\u770b<\/p>\n<pre class=\"lang:default decode:true \">[root@cloud ~]# ls \/dev\/sd*\r\n\/dev\/sda  \/dev\/sda1  \/dev\/sda2  \/dev\/sdb  \/dev\/sdb1<\/pre>\n<p>\u53d1\u73b0\u591a\u4e86\u4e2asdb1\u7684\u5206\u533a\uff0c\u6211\u4eec\u5c31\u5728\u8fd9\u4e2a\u4e0a\u9762\u521b\u5efalvm\u3002<\/p>\n<pre class=\"lang:default decode:true \">[root@cloud ~]# pvcreate \/dev\/sdb1\r\n  Physical volume \"\/dev\/sdb1\" successfully created\r\n[root@cloud ~]# vgcreate vg0 \/dev\/sdb1\r\n  Volume group \"vg0\" successfully created\r\n[root@cloud ~]# lvcreate -L 30G -n lv0 vg0\r\n  Logical volume \"lv0\" created<\/pre>\n<p>\u4e0a\u9762\u7684lvm\uff0c\u6211\u4eec\u5148\u521b\u5efa\u4e8630g\u5927\u5c0f\uff0c\u5982\u679c\u4e0d\u591f\uff0c\u4ee5\u540e\u53ef\u4ee5\u6269\u5927\u903b\u8f91\u5377\u7684\u3002\u683c\u5f0f\u5316lvm\uff1a<\/p>\n<pre class=\"lang:default decode:true \">[root@cloud ~]# mkfs.ext4 \/dev\/vg0\/lv0<\/pre>\n<p>\u521b\u5efa\u6302\u8f7d\u76ee\u5f55\/mnt\/sdb\uff0c\u7136\u540e\u6302\u8f7d\uff1a<\/p>\n<pre class=\"lang:default decode:true\">[root@cloud ~]# blkid\r\n\/dev\/sdb1: UUID=\"a5i0dO-I1Cr-SScv-7M1n-6pNz-ucd2-a9o1eY\" TYPE=\"LVM2_member\"\r\n\/dev\/sda1: UUID=\"63f656e2-4a3c-4b34-a59e-13358830e87b\" TYPE=\"ext4\"\r\n\/dev\/sda2: UUID=\"dtK0fn-wMNW-wB8L-ueXq-H3Ad-cek9-5wCgac\" TYPE=\"LVM2_member\"\r\n\/dev\/mapper\/vg_cloud-lv_root: UUID=\"b1b727fa-2e21-4399-8e63-d5565636c16b\" TYPE=\"ext4\"\r\n\/dev\/mapper\/vg_cloud-lv_swap: UUID=\"9464fd57-de55-47d9-9015-80dab53800b1\" TYPE=\"swap\"\r\n\/dev\/mapper\/vg0-lv0: UUID=\"f17c14b5-fb85-4624-8eee-d5a700f3047e\" TYPE=\"ext4\"<\/pre>\n<p>\u628a\u6211\u4eec\u8981\u6302\u8f7d\u5377\u7684UUID=&#8221;f17c14b5-fb85-4624-8eee-d5a700f3047e&#8221;\u8bb0\u4e0b\u6765\uff0c\u5199\u5165\/etc\/fstab\uff0c\u53ef\u4ee5\u7528vim\u7f16\u8f91\uff0c\u4e5f\u53ef\u4ee5\u76f4\u63a5\u6267\u884c\uff1a<\/p>\n<pre class=\"lang:default decode:true \">echo \"UUID=f17c14b5-fb85-4624-8eee-d5a700f3047e       \/mnt\/sdb        ext4    defaults        0 0\" &gt;&gt; \/etc\/fstab<\/pre>\n<p>\u6267\u884cmount -a\u6302\u8f7d\u3002\u6b64\u65f6\u903b\u8f91\u5377\u5e94\u8be5\u5df2\u7ecf\u6302\u8f7d\u6210\u529f\u4e86\uff0c\u67e5\u770b\u4e0b\uff1a<\/p>\n<pre class=\"lang:default decode:true \">[root@cloud ~]# mount\r\n\/dev\/mapper\/vg_cloud-lv_root on \/ type ext4 (rw)\r\nproc on \/proc type proc (rw)\r\nsysfs on \/sys type sysfs (rw)\r\ndevpts on \/dev\/pts type devpts (rw,gid=5,mode=620)\r\ntmpfs on \/dev\/shm type tmpfs (rw,rootcontext=\"system_u:object_r:tmpfs_t:s0\")\r\n\/dev\/sda1 on \/boot type ext4 (rw)\r\nnone on \/proc\/sys\/fs\/binfmt_misc type binfmt_misc (rw)\r\nsunrpc on \/var\/lib\/nfs\/rpc_pipefs type rpc_pipefs (rw)\r\n\/dev\/mapper\/vg0-lv0 on \/mnt\/sdb type ext4 (rw)<\/pre>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c\u5df2\u7ecf\u6302\u8f7d\u5230\/mnt\/sdb\u4e0a\u53bb\u4e86\u3002<\/p>\n<p>\u8981\u6269\u5927lvm\u5927\u5c0f\uff0c\u53ef\u4ee5\u6267\u884c\uff1a<\/p>\n<pre class=\"lang:default decode:true \">[root@cloud ~]# lvresize -L 35G \/dev\/vg0\/lv0\r\n  Extending logical volume lv0 to 35.00 GiB\r\n  Logical volume lv0 successfully resized\r\n[root@cloud ~]# resize2fs \/dev\/vg0\/lv0\r\nresize2fs 1.41.12 (17-May-2010)\r\nFilesystem at \/dev\/vg0\/lv0 is mounted on \/mnt\/sdb; on-line resizing required\r\nold desc_blocks = 2, new_desc_blocks = 3\r\nPerforming an on-line resize of \/dev\/vg0\/lv0 to 9175040 (4k) blocks.\r\nThe filesystem on \/dev\/vg0\/lv0 is now 9175040 blocks long.<\/pre>\n<p>\u67e5\u770b\u5927\u5c0f\uff1a<\/p>\n<pre class=\"lang:default decode:true \">[root@cloud ~]# df -lhT\r\n\u6587\u4ef6\u7cfb\u7edf    \u7c7b\u578b      \u5bb9\u91cf  \u5df2\u7528  \u53ef\u7528 \u5df2\u7528%% \u6302\u8f7d\u70b9\r\n\/dev\/mapper\/vg_cloud-lv_root\r\n              ext4    7.5G  3.5G  3.7G  49% \/\r\ntmpfs        tmpfs    946M   72K  946M   1% \/dev\/shm\r\n\/dev\/sda1     ext4    485M   32M  428M   7% \/boot\r\n\/dev\/mapper\/vg0-lv0\r\n              ext4     35G  176M   33G   1% \/mnt\/sdb<\/pre>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c\u5df2\u7ecf\u6269\u5927\u523035G\u4e86\u3002<br \/>\n\u8981\u4f7f\u7528\u5168\u90e8\u5927\u5c0f\uff0c\u53ef\u4ee5\u7528vgdisplay\uff0c\u663e\u793avg\u7684\u5927\u5c0f\uff0c\u4e4b\u540e\u6309\u4e0a\u8ff0\u65b9\u6848\u5206\u914d\u5373\u53ef\u3002<\/p>\n<pre class=\"lang:default decode:true \">[root@cloud ~]# vgdisplay\r\n--- Volume group ---\r\nVG Name vg0\r\nSystem ID\r\nFormat lvm2\r\nMetadata Areas 1\r\nMetadata Sequence No 3\r\nVG Access read\/write\r\nVG Status resizable\r\nMAX LV 0\r\nCur LV 1\r\nOpen LV 1\r\nMax PV 0\r\nCur PV 1\r\nAct PV 1\r\nVG Size 63.00 GiB\r\nPE Size 4.00 MiB\r\nTotal PE 16127\r\nAlloc PE \/ Size 8960 \/ 35.00 GiB\r\nFree PE \/ Size 7167 \/ 28.00 GiB\r\nVG UUID j0lzmj-7daQ-aTFv-EHdA-02px-dir6-xjP973<\/pre>\n<p>\u53ef\u4ee5\u770b\u5230\uff0cvg0\u6700\u5927\u670963GiB\u5927\u5c0f\uff0c\u603bPE\u6570\u91cf\u4e3a16127\u4e2a\u3002<\/p>\n<p>\u6709\u4e9b\u5ba2\u6237\uff0c\u559c\u6b22\u628a\u7cfb\u7edf\u6839\u76ee\u5f55&#8221;\/&#8221;\u7684lvm\u548c\u5176\u4ed6\u78c1\u76d8\u5408\u5e76\uff0c\u8fd9\u6837\u505a\u5176\u5b9e\u975e\u5e38\u4e0d\u79d1\u5b66\u548c\u5371\u9669\uff0c\u4e00\u65e6\u7cfb\u7edf\u51fa\u95ee\u9898\uff0c\u91cd\u88c5\u7cfb\u7edf\uff0clvm\u5377\u91cc\u7684\u6570\u636e\u5f88\u96be\u6062\u590d\uff0c\u5904\u7406\u8d77\u6765\u4e5f\u975e\u5e38\u9ebb\u70e6\uff0c\u4e0d\u63a8\u8350\u5927\u5bb6\u548c\u6839\u76ee\u5f55\u903b\u8f91\u5377\u5408\u5e76\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>LVM\u662f Logical Volume Manager(\u903b\u8f91\u5377\u7ba1\u7406)\u7684\u7b80\u5199\uff0cLV<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-70","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/yyshell.com\/index.php?rest_route=\/wp\/v2\/posts\/70","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yyshell.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yyshell.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yyshell.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yyshell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=70"}],"version-history":[{"count":3,"href":"https:\/\/yyshell.com\/index.php?rest_route=\/wp\/v2\/posts\/70\/revisions"}],"predecessor-version":[{"id":73,"href":"https:\/\/yyshell.com\/index.php?rest_route=\/wp\/v2\/posts\/70\/revisions\/73"}],"wp:attachment":[{"href":"https:\/\/yyshell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=70"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yyshell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=70"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yyshell.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=70"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}