{"id":1267,"date":"2010-04-19T18:33:51","date_gmt":"2010-04-19T10:33:51","guid":{"rendered":"http:\/\/blog.nuface.tw\/?p=1267"},"modified":"2018-04-27T10:24:22","modified_gmt":"2018-04-27T02:24:22","slug":"%e5%a5%bd%e7%94%a8%e7%9a%84linux-lvm-%e7%ae%a1%e7%90%86","status":"publish","type":"post","link":"https:\/\/blog.nuface.tw\/?p=1267","title":{"rendered":"\u597d\u7528\u7684Linux LVM \u7ba1\u7406"},"content":{"rendered":"<p>\u70ba\u4ec0\u9ebc\u8981\u5beb\u9019\u4e00\u500bLVM \u7ba1\u7406\u5462\uff1f\u8ddf<a href=\"http:\/\/blog.nuface.tw\/?p=1142\">\u8c93\u7e9c<\/a>\u4e00\u6a23\u7684\u72c0\u6cc1\uff0c\u597d\u591a\u4eba\u5728\u5c0f\u745e\u7684\u9ce5\u7ad9\u67e5LVM\uff0c\u53ea\u597d\u61c9\u89c0\u773e\u8981\u6c42\uff0c\u5beb\u4e00\u4e0bLinux \u4e0b\u7684LVM \u7ba1\u7406\u3002\u96d6\u7136\u6211\u5e38\u7528\uff0c\u4f46\u6c92\u6709\u5f88\u6df1\u5165\u7684\u4e86\u89e3\uff0c\u5beb\u7684\u4e0d\u597d\uff0c\u5225\u6253\u6211\u5440\uff0e\uff0e<br \/>\n<!--more--><br \/>\n<img decoding=\"async\" src=\"http:\/\/pic.pimg.tw\/bryan1974\/1169848263.jpg\" alt=\"\u8073\u80a9\u3001\u6524\u624b\" \/><br \/>\n\u5f15\u7528\u81f3 <a href=\"http:\/\/bryan1974.pixnet.net\/blog\">Brilliant Bry *\uff1a\u6b61\u6a02\u5427\uff01\u751f\u547d<\/a>  bryan1974  <a href=\"http:\/\/bryan1974.pixnet.net\/blog\/post\/2183273\">\u8073\u80a9\u3001\u6524\u624b<\/a> \u4f5c\u54c1<\/p>\n<p>\u4f7f\u7528LVM \u6709\u4ec0\u9ebc\u597d\u8655\u5462\uff1f<\/p>\n<p>\u4ee5\u5f80\u5728\u786c\u789f\u5206\u5272\u6642\uff0c\u5e38\u5e38\u6349\u4e0d\u592a\u6e96\u6bcf\u4e00\u500bpartition \u61c9\u8a72\u5206\u591a\u5c11\u7a7a\u9593\uff0c\u6709\u6642\u9019\u908a\u5c11\u4e00\u9ede\uff0c\u90a3\u908a\u53c8\u591a\u4e00\u9ede\uff0c\u6bcf\u6b21\u7a7a\u9593\u4e0d\u5920\u6642\uff0c\u5de5\u7a0b\u5c31\u6703\u6709\u9ede\u6d69\u5927\uff0c\u901a\u5e38\u8981\u53e6\u5916\u6e96\u5099\u4e00\u786c\u789f\uff0c\u628a\u539f\u672c\u8cc7\u6599copy \u51fa\u4f86\uff0c\u518d\u91cd\u65b0\u4f86\u597d\u597d\u5206\u5272\u4e00\u4e0b\uff1b\u6216\u8457\u76f4\u63a5\u628a\u8cc7\u6599\uff0c\u8f49\u5b58\u81f3\u5206\u5272\u597d\u7684\u65b0\u786c\u789f\u4e0a\u3002\u6240\u4ee5\u6bcf\u6b21\u8cc7\u6599\u5bb9\u91cf\u4e00\u7206\u6642\uff0c\u5c31\u6703\u5f88\u982d\u75db\u3002<\/p>\n<p>\u9019\u500b\u6642\u5019\uff0c\u5982\u679c\u4f7f\u7528\u4e86LVM \uff0c\u90a3\u5c31\u65b9\u4fbf\u591a\u4e86\u3002LVM \u53ef\u4ee5\u5f48\u6027\u7684\u5c0dPartition \u505a\u7ba1\u7406\u3002\u4f60\u53ef\u4ee5\u628a\u4e0d\u540c\u7684\u5be6\u9ad4Partition\uff0c\u7d44\u6210\u4e00\u500b\u5927\u7684\u908f\u8f2f\u786c\u789f\u3002\u9019\u500b\u908f\u8f2f\u786c\u789f\uff0c\u53ef\u4ee5\u96a8\u6642\u52d5\u614b\u7684\u52a0\u5165\u6216\u79fb\u9664Partition\uff0c\u6240\u4ee5\u908f\u8f2f\u786c\u789f\uff0c\u662f\u53ef\u4ee5\u4f60\u60f3\u8981\u8b8a\u5927\u5c31\u8b8a\u5927\uff0c\u60f3\u8981\u8b8a\u5c0f\u5c31\u8b8a\u5c0f\uff0c\u5f48\u6027\u5f88\u5927\u3002<\/p>\n<p>\u6709\u4e86\u9019\u500b\u908f\u8f2f\u786c\u789f\u5f8c\uff0c\u4f60\u53ef\u4ee5\u7531\u9019\u9846\u908f\u8f2f\u786c\u789f\u5207\u5272\u51fa\uff0c\u908f\u8f2f\u78c1\u789f\u5340\uff0c\u518d\u628a\u9019\u500b\u908f\u8f2f\u78c1\u789f\u5340\u683c\u5f0f\u5316\u597d\u4e86\u4e4b\u5f8c\uff0c\u518d\u628a\u5b83\u639b\u8f09\u81f3\u7cfb\u7d71\u76ee\u9304\u4e0a\uff0c\u5373\u53ef\u4f7f\u7528\u3002\u800c\u9019\u500b\u908f\u8f2f\u78c1\u789f\u5340\uff0c\u4e00\u6a23\u53ef\u4ee5\u81ea\u7531\u7684\u52a0\u5927\uff0c\u6216\u8b8a\u5c0f\uff0c\u7ba1\u7406\u4e0a\u5f88\u65b9\u4fbf\u3002<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/blog.nuface.tw\/wp-content\/uploads\/2010\/04\/LVM-manage.gif\" alt=\"LVM \u7ba1\u7406\" \/><\/p>\n<p>LVM \u662f\u4ec0\u9ebc\u6771\u897f\u5462 \uff1f\u9019\u662f\u82f1\u6587\u7684\u7e2e\u5beb (Logical Volume Management)\uff0c\u908f\u8f2f\u5377\u518a\u7ba1\u7406\u3002 &#8220;\u908f\u8f2f&#8221;  \u8ddf &#8220;\u7ba1\u7406&#8221; \u5c0f\u745e\u9084\u4e86\u89e3\uff0c &#8220;\u5377\u518a&#8221; \u5c31\u6709\u9ede\u4e0d\u592a\u4e86\u3002\u6211\u89ba\u5f97\u6709\u9ede\u50cf\u662f\u78c1\u789f\u7684\u611f\u89ba\uff0c\u6240\u4ee5\u5c0f\u745e\u7a31 LVM \u70ba &#8220;\u908f\u8f2f\u78c1\u789f\u6a5f\u7cfb\u7d71\u7ba1\u7406&#8221; \u3002<\/p>\n<p>\u4e0a\u9762\u90a3\u5f35\u5716\u6709\u770b\u5230\u5e7e\u500b\u540d\u8a5e\uff0c\u5206\u5225\u662f VG \/ PV \/ LV \uff0c\u500b\u5225\u505a\u4e00\u4e0b\u540d\u8a5e\u89e3\u91cb\u3002<\/p>\n<p>VG (Volume Group) \u7684\u82f1\u6587\u7e2e\u5beb\uff0c\u7531\u8a31\u591a\u5be6\u9ad4\u78c1\u789f\u6a5f\u6216\u5be6\u9ad4\u78c1\u5340\uff0c\u6240\u7d44\u6210\u7684\u908f\u8f2f\u78c1\u789f\u6a5f\u3002<\/p>\n<p>PV (Physical Volumes)\u7684\u82f1\u6587\u7e2e\u5beb\uff0c\u6307\u7684\u662f\u5be6\u9ad4\u78c1\u789f\u6a5f\u6216\u5be6\u9ad4\u78c1\u5340\uff0c\u4f8b\u5982: \/dev\/hda  \u6216 \/dev\/hda1 \u3002<\/p>\n<p>LV (Logical Volumes)\u7684\u82f1\u6587\u7e2e\u5beb\uff0c\u6307\u7684\u662f\u7531\u908f\u8f2f\u78c1\u789f\u6a5f\uff0c\u518d\u5206\u5272\u51fa\u4f86\u7684\u908f\u8f2f\u78c1\u789f\u5340\u3002<\/p>\n<p>\u4ee5\u4e0a\u662f\u5927\u81f4\u7684\u6982\u5ff5\uff0c\u4e5f\u5927\u6982\u63cf\u7e6a\u51fa\uff0c\u4f7f\u7528\u7684\u65b9\u5f0f\u3002<\/p>\n<blockquote><p>\n\u5efa\u7acb PV &#8211;> \u7d44\u6210 VG &#8211;> \u5206\u5272\u51fa LV\n<\/p><\/blockquote>\n<p>\u7b2c\uff11\u6b65\uff0c\u5efa\u7acbPV <\/p>\n<blockquote><p>\n\u6307\u4ee4\u70ba pvcreate \uff0c\u9019\u500b\u6307\u4ee4\u5f88\u7c21\u55ae\uff0c\u5c31\u662f<\/p>\n<p> pvcreate \/dev\/hda1 \/dev\/hab &#8230;..<\/p>\n<p>\u5f8c\u9762\u53ef\u4ee5\u63a5\uff0c\u78c1\u789f\u5340\u6216\u78c1\u789f\u6a5f\uff0c\u53ef\u4ee5\u628a\u5f8c\u9762\u63a5\u7684\u88dd\u7f6e\u8b8a\u6210 PV \u3002\u770b\u4f60\u8981\u4f7f\u7528\u78c1\u789f\u5340\uff0c\u9084\u662f\u78c1\u789f\u6a5f\u90fd\u53ef\u4ee5\uff0c\u4e0d\u904e\u8981\u6ce8\u610f\u5e7e\u500b\u5730\u65b9\uff1b\u5982\u679c\u4f7f\u7528\u78c1\u789f\u5340\uff0c\u5247\u78c1\u789f\u5340\u7684\u7cfb\u7d71\u7de8\u865f\u5fc5\u9808\u70ba0x8e\uff0c\u53ef\u4ee5\u4f7f\u7528fdisk \u5de5\u5177\u53bb\u505apartition id\u7684\u8a2d\u5b9a\u5373\u53ef\uff1b\u5982\u679c\u4f7f\u7528\u78c1\u789f\u6a5f\uff0c\u5247\u5fc5\u9808\u522a\u9664\u6574\u9846\u78c1\u789f\u6a5f\u7684partition table \uff0c\u600e\u9ebc\u505a\u5462\uff1f \u53ef\u4ee5\u5229\u7528\u9019\u500b\u6307\u4ee4\uff1a<\/p>\n<p> dd if=\/dev\/zero of=\/dev\/hde bs=512 count=1<\/p>\n<p>\u90a3\u500b\/dev\/hde \u6307\u7684\u662f\uff0c\u4f60\u8981\u4f7f\u7528\u7684\u78c1\u789f\u6a5f\u4ee3\u865f\uff0c\u5927\u5bb6\u81ea\u5df1\u8996\u72c0\u6cc1\u8abf\u6574\u3002\n<\/p><\/blockquote>\n<p>\u7b2c2\u6b65\uff0c\u7d44\u5408VG<\/p>\n<blockquote><p>\n\u6709\u4e86\u5f88\u591a\u7684PV \u5f8c\uff0c\u5c31\u53ef\u4ee5\u628a\u9019\u4e9bPV \u7d44\u5408\u8d77\u4f86\uff0c\u8b8a\u6210\u4e00\u500b\u5927\u7684VG\u3002\u6307\u4ee4\u662f<\/p>\n<p>vgcreate vgname pvname1 pvname2<\/p>\n<p>\u7b2c1\u500b\u53c3\u6578\uff0c\u662f\u4f60\u8981\u5efa\u7acb\u7684\u908f\u8f2f\u78c1\u789f\u6a5f\u7684\u540d\u7a31\uff0c\u4e4b\u5f8c\u7684\u53c3\u6578\uff0c\u5c31\u662f\u4f60\u90a3\u5f88\u591a\u5f88\u591a\u7684PV\u540d\u7a31\u4e86\u3002\u9019\u500b\u6307\u4ee4\u7684\u529f\u80fd\uff0c\u5c31\u662f\u628apvname1 \uff0c pvname2 \uff0e\uff0e\uff0e\uff0e\u7d44\u6210\u4f60\u8981\u7684vgname\u3002\n<\/p><\/blockquote>\n<p>\u7b2c3\u6b65\uff0c\u5206\u5272\u51faLV<\/p>\n<blockquote><p>\n\u6709\u4e86VG \u5f8c\uff0c\u5c31\u53ef\u4ee5\u7531\u9019\u500b\u908f\u8f2f\u78c1\u789f\u6a5f\uff0c\u5206\u5272\u51fa\u4f60\u60f3\u8981\u7684\u908f\u8f2f\u5206\u5272\u5340LV \u4e86\u3002\u6307\u4ee4\u70ba <\/p>\n<p>lvcreate -n lvname -L 20G vgname <\/p>\n<p>\u4f8b\u5982\uff1a<br \/>\nlvcreate -n testlv -L 10G testvg  <\/p>\n<p>\uff0c\u6b64\u6642\uff0c\u4f60\u53ef\u4ee5\u5728 \/dev\/testvg \u4e0b\u770b\u5230\u4e00\u500b\u78c1\u789f\u88dd\u7f6e\u540d\u7a31testlv \u3002\n<\/p><\/blockquote>\n<p>\u505a\u4e86\u4ee5\u4e0a3\u6b65\u9a5f\u5f8c\uff0c\u4f60\u5c31\u6709\u4e86\u4e00\u500b testlv \u7684\u908f\u8f2f\u5206\u5272\u5340\u4e86\uff0c\u63a5\u8457\u8ddf\u5be6\u9ad4\u7684\u5206\u5272\u5340\u4f5c\u696d\u5c31\u5dee\u4e0d\u591a\u4e86\uff0c<\/p>\n<p>mke2fs -j \/dev\/testvg\/testlv <\/p>\n<p>\uff0c\u4f60\u5c31\u53ef\u4ee5\u628a testlv\u9019\u500b\u5206\u5272\u5340\uff0c\u683c\u5f0f\u5316\u70baext3 \uff0c\u63a5\u8457\u518d\u628a\u5b83mount \u8d77\u4f86\uff0c\u5c31\u53ef\u4ee5\u7528\u4e86\u3002<br \/>\n\u4f8b\u5982\uff1a<br \/>\nmount -t ext3 \/dev\/testvg\/testlv  \/u01  \u3002<\/p>\n<p>\u5efa\u7acb\u597d\u4e86\u4e4b\u5f8c\uff0c\u5982\u4f55\u8abf\u6574VG \u7684\u5927\u5c0f\u5462\uff1f<\/p>\n<blockquote><p>\n\u589e\u52a0VG \u7684\u5927\u5c0f\uff1a\u6307\u4ee4-> <\/p>\n<p>vgextend  vgname pvname1 pvname2 <\/p>\n<p>\u5728\u96fb\u8166\u4e0a\u65b0\u589e\u52a0\u4e00\u9846\u78c1\u789f\u6a5f\uff0c\u6216\u5728\u539f\u672c\u96fb\u8166\u4e2d\u7684\u78c1\u789f\u6a5f\uff0c\u53e6\u5207\u51fa\u4e00\u584a\u5be6\u9ad4\u5206\u5272\u5340\u51fa\u4f86\uff0c\u518d\u6309\u7167PV \u7684\u5efa\u7acb\u65b9\u5f0f\uff0c\u628a\u5b83\u8b8a\u6210PV \u5f8c\uff0c\u4f7f\u7528\u9019\u500b\u6307\u4ee4\uff0c\u5373\u53ef\u628a pvname1 \u53ca pvname2&#8230;\u7b49PV \u52a0\u5165\u539f\u6709\u7684VG \u88cf\u9762\uff0c\u4f86\u589e\u52a0\u539f\u672cVG \u7684\u5927\u5c0f\u3002<\/p>\n<p>\u6e1b\u5c11VG \u7684\u5927\u5c0f\uff1a\u6307\u4ee4-><\/p>\n<p>vgreduce vgname pvname1 pvname2 <\/p>\n<p>\u9019\u500b\u6307\u4ee4\u53ef\u4ee5\uff0c\u8b93\u4f60\u79fb\u9664\u5728vgname \u4e2d\uff0c\u6c92\u6709\u88ab\u4f7f\u7528\u7684PV \uff0c\u6ce8\u610f\uff1a\u8981\u6c92\u6709\u88ab\u4f7f\u7528\u5230\u7684PV \u624d\u53ef\u4ee5\u88ab\u79fb\u9664\uff0c\u8981\u600e\u9ebc\u67e5PV \u6709\u6c92\u6709\u88ab\u4f7f\u7528\u5230\u5462\uff1f\u53ef\u4ee5\u4e0b pvdisplay pvname \u5373\u53ef\u67e5\u8a62PV \u7684\u4f7f\u7528\u72c0\u6cc1\u3002\u6ce8\u610f\u90a3\u500bAllocated PE \u90a3\u500b\u6578\u5b57\uff0c\u5982\u679c\u662f0\u5373\u4ee3\u8868\uff0c\u9019\u500bPV \uff0c\u6c92\u6709\u88ab\u4f7f\u7528\u5230\u3002\n<\/p><\/blockquote>\n<p>\u8b1b\u5230\u4e00\u534a\uff0c\u6709\u500b\u984c\u5916\u8a71\u3002PE \u662f\u4ec0\u9ebc\uff1f\u9019\u500b\u662f physicalextentsize \u9019\u500b\u82f1\u6587\u5b57\u7684\u7e2e\u5beb\u3002\u6307\u7684\u662fVG \u7684\u6700\u5c0f\u5132\u5b58\u55ae\u4f4d\uff0c\u5728lvm1\u7684\u898f\u683c\u4e0b\uff0c\u4e00\u500bVG \u53ea\u53ef\u4ee5\u542b\u670965534\u500bPE \uff0c\u6240\u4ee5\u5982\u679c\u4e00\u500bPE \u7684\u5c3a\u5bf8\u5927\u5c0f\u70ba4MB \u7684\u8a71\uff0c\u90a3\u4e00\u500bVG \u7684\u6700\u5927\u5bb9\u91cf\u5373\u70ba 256GB\uff0c\u5982\u679c\u4f60\u60f3\u8981\u5efa\u69cb\u4e00\u500b\u6bd4256GB\u5927\u7684VG \uff0c\u5373\u5fc5\u9808\u5728\u5efa\u7acbVG \u6642\uff0c\u8abf\u6574PE \u7684\u5927\u5c0f\u3002\u76ee\u524d\u4f7f\u7528\u7684lvm2\u898f\u683c\uff0c\u5df2\u7d93\u6c92\u6709\u9019\u500b65534\u500bPE \u7684\u9650\u5236\u4e86\uff0c\u6240\u4ee5\u57fa\u672c\u4e0a\u5bb9\u91cf\u662f\u4e0d\u6703\u6709\u9650\u5236\u7684\uff0c\u4f46\u5982\u679c\u4e00\u500bVG \u4e2d\u542b\u6709\u592a\u5927\u91cf\u7684PE \uff0c\u6703\u5f71\u97ff\u5230Disk I\/O \u7684\u6548\u80fd\uff0c\u6700\u5c0f\u7684PE size \u70ba1K \uff0c\u4e0d\u904e\u57282.4\u6838\u5fc3\u5c0dblock device \u67092TB \u7684\u9650\u5236\u3002<\/p>\n<p>PE Size \u7684\u5927\u5c0f\u8003\u91cf\uff0c\u5c0f\u745e\u6703\u4f9d\u64da\u8981\u5b58\u653e\u6a94\u6848\u5167\u5bb9\uff0c\u5206\u5225\u8a2d\u5b9a\u4e0d\u540c\u7684PE \u5927\u5c0f\uff0c\u4f8b\u5982\uff1a\u8981\u5b58\u6587\u4ef6\u7684\uff0c\u6211\u6703\u8a2d\u5b9a\u6bd4\u8f03\u5c0fPE Size\uff1b\u5982\u679c\u662f\u8981\u5b58\u653eAVI \u6a94\uff0c\u6211\u6703\u8a2d\u5b9a\u6bd4\u8f03\u5927\u7684PE Size\uff0c\u8ddf\u7a7a\u9593\u7684\u5229\u7528\uff0c\u53ca\u6548\u80fd\u6703\u6709\u4e9b\u95dc\u4fc2\u3002<\/p>\n<p>\u4e5f\u5c31\u662f\uff0c\u5982\u679c\u8a2d\u5b9a\u4e00\u500b\u6bd4\u8f03\u5927\u7684PE Size \uff0c\u4f8b\u5982\uff1aPE \u8a2d64MB \uff0c\u4f46\u8981\u5b58\u7684\u6bcf\u4e00\u500b\u6587\u5b57\u6a94\uff0c\u90fd\u53ea\u67091MB \uff0c\u6bcf\u5b58\u4e00\u500b\u6a94\uff0c\u5c31\u7528\u4e00\u500b64MB \uff0c\u5c31\u6709\u9ede\u6d6a\u8cbb\u4e86;\u53cd\u904e\u4f86\uff0c\u5982\u679c\u8981\u5b58\u7684AVI \u6a94\uff0c\u6bcf\u4e00\u500b\u90fd\u8d85\u904e600MB \uff0cPE\u8a2d\u70ba4MB \uff0c\u90a3\u5b58\u4e00\u500b600MB \u7684\u6a94\uff0c\u6240\u4f7f\u7528\u7684block I\/O \u5c31\u5f88\u591a\uff0c\u6548\u80fd\u6709\u9ede\u5f71\u97ff&#8230;\u6240\u4ee5\u8981\u5927\u8981\u5c0f\uff0c\u55ef\u81ea\u5df1\u62ff\u634f\uff0e\uff0e\uff0e<\/p>\n<p>\u597d\u4e86\uff0c\u63a5\u8457\u4f86\u770b\uff0c\u8981\u5982\u4f55\u8abf\u6574LV \u7684\u5c3a\u5bf8\u5927\u5c0f\u5462\uff1f<\/p>\n<blockquote><p>\n\u589e\u52a0LV \u7684Size \u6307\u4ee4\uff1alvextend -L +3G \/dev\/testvg\/testlv \uff0c\u9019\u6a23\u5b50\uff0c\u5c31\u53ef\u4ee5\u589e\u52a0LV \u7684\u5c3a\u5bf8\u5927\u5c0f\u3002partition \u7684\u7a7a\u9593\u52a0\u5927\u4e86\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528lvdisplay \u6aa2\u8996\u4e00\u4e0b\uff0c\u53ef\u4ee5\u767c\u73fetestlv \u9019\u500b\u908f\u8f2f\u5206\u5272\u5340\u7684\u7a7a\u9593\u771f\u7684\u8b8a\u5927\u4e86\uff0c\u4f46\u662f\u4f7f\u7528df \u6307\u4ee4\uff0c\u537b\u767c\u73fe\u6a94\u6848\u7cfb\u7d71\u7684\u7a7a\u9593\uff0c\u537b\u6c92\u6709\u589e\u52a0\uff0c\u70ba\u4ec0\u9ebc\u5462\uff1f\u56e0\u70ba\u6211\u5011\u6c92\u6709\u544a\u8a34\u7cfb\u7d71\uff0c\u591a\u51fa\u4f86\u7684\u5206\u5272\u5340\u8981\u505a\u4ec0\u9ebc\uff0c\u6240\u4ee5\uff0c\u63a5\u8457\u6211\u5011\u8981\u53e6\u5916\u4e0b\u4e00\u500b\u6307\u4ee4\uff0cresize2fs\u3000\/dev\/testvg\/testlv\uff0c\u628a\u525b\u624d\u589e\u52a0\u7684partition \u7a7a\u9593\uff0c\u8f49\u63db\u81f3\u6a94\u6848\u7cfb\u7d71\uff0c\u518d\u505a\u4e00\u6b21df \u6aa2\u8996\u4e00\u4e0b\uff0c\u6a94\u6848\u7cfb\u7d71\u7a7a\u9593\uff0c\u5c31\u6703\u767c\u73fe\uff0c\u6a94\u6848\u7cfb\u7d71\u7684\u7a7a\u9593\u4e5f\u540c\u6b65\u7684\u589e\u52a0\u4e86\u3002<\/p>\n<p>\u518d\u53bb\u6aa2\u8996\u539f\u672c\u7684\u6a94\u6848\u7cfb\u7d71\u8cc7\u6599\uff0c\u4e26\u6c92\u6709\u56e0\u70ba\u589e\u52a0\u7a7a\u9593\uff0c\u800c\u88ab\u5f71\u97ff\u5230\uff0c\u9019\u500b\u529f\u80fd\u771f\u7684\u662f\u5f88\u597d\u7528\u3002<\/p>\n<p>2018-04-27 \u88dc\u5145\u4e00\u4e0b: \u6642\u4ee3\u767c\u5c55\u5230\u4eca\u5929\uff0c\u51fa\u73fe\u4e86XFS \u6a94\u6848\u7cfb\u7d71\uff0c\u5982\u679c\u8981 resize2fs \u7684\u8a71\uff0c\u8981\u6539\u7528  xfs_growfs \/dev\/testvg\/testlv<\/p>\n<p>\u8981\u5982\u4f55\u6e1b\u5c11LV \u7684\u7a7a\u9593\u5462?\u6b65\u9a5f\u6709\u4e00\u9ede\u591a\uff0c\u57fa\u672c\u4e0a\u662f\u5012\u8457\u505a\uff01<br \/>\n\u7b2c1\u6b65\uff0c\u8981\u5148 umount \u5df2\u639b\u8f09\u7684LV \uff0c\u5728\u505a\u589e\u52a0\u6642\uff0c\u53ef\u4ee5\u662f\u5df2\u639b\u8f09\u7684\u72c0\u614b\uff0c\u4f46\u662f\u5982\u679c\u662f\u8981\u6e1b\u5c11\u5bb9\u91cf\uff0c\u5fc5\u9808\u662f\u5378\u8f09\u72c0\u614b\uff0c\u6240\u4ee5\u7b2c\u4e00\u6b65\u5148<\/p>\n<p>umount  \/test  (\u9019\u500b\u662f\u6e2c\u8a66LV \u7684\u639b\u8f09\u9ede)<\/p>\n<p>\u7b2c2\u6b65\uff0c\u8981\u505a e2fsck \u9019\u500b\u52d5\u4f5c\uff0c\u5148\u505a\u4e00\u4e0b\u78c1\u789f\u6aa2\u67e5<\/p>\n<p>e2fsck -f \/dev\/VolGroup00\/testlv<\/p>\n<p>\u7b2c3\u6b65\uff0c\u8655\u7406\u6a94\u6848\u7cfb\u7d71\u7684size \u7e2e\u5c0f\uff0c\u4f7f\u7528resize2fs \u9019\u500b\u6307\u4ee4<\/p>\n<p>resize2fs \/dev\/VolGroup00\/testlv 5G  (\u6307\u7684\u662f\u6700\u5f8c\u8981\u7559\u4e0b\u5bb9\u91cf)<\/p>\n<p>\u7b2c4\u6b65\uff0c\u63a5\u8457\u8981\u8655\u7406partition \u7684\u7e2e\u5c0f\uff0c\u6b64\u6642\u624d\u53ef\u4ee5\u505a lvreduce \uff0c\u67092\u500b\u53c3\u6578\u53ef\u4ee5\u7528 -l \u8ddf-L \uff0c-l \u662f\u7528\u5728\uff0c\u4f60\u8981\u6e1b\u5c11\u591a\u5c11\u500bPE \uff0c\u53ef\u4ee5\u81ea\u5df1\u6307\u5b9a\uff1b-L \u53ef\u4ee5\u76f4\u63a5\u6307\u5b9asize \uff0c\u5c0f\u745e\u90fd\u7fd2\u6163\u4f7f\u7528-L \u9019\u500b\u53c3\u6578\uff0c\u6bd4\u8f03\u65b9\u4fbf\u4e00\u9ede<\/p>\n<p>lvreduce \/dev\/VolGroup00\/testlv -5G<\/p>\n<p>\u5c31\u662f\u628a testlv \u9019\u500b\u908f\u8f2f\u5206\u5272\u5340\u6e1b\u5c11 5G \u7684\u7a7a\u9593\uff0c\u4ee5\u4e0a\u5c31\u662f\u7e2e\u5c0fLV\u7684\u65b9\u6cd5\n<\/p><\/blockquote>\n<p>\u81f3\u65bcLVM \u7684\u7ba1\u7406\uff0c\u9084\u6709\u5feb\u7167\u7684\u529f\u80fd\uff0c\u4e0d\u904e\u5c0f\u745e\u6c92\u5728\u7528\uff0c\u5c31\u61f6\u5f97\u8cbc\u4e0a\u4f86\u4e86\uff0c\u6709\u6a5f\u6703\u518d\u5206\u4ea8\u9019\u500b\u90e8\u4efd\uff0c\u4ee5\u4e0b\u70ba\u5c0f\u745e\u81ea\u5df1\u5e38\u7528\u7684LVM  \u6307\u4ee4\u5217\u8868\u3002<\/p>\n<p>\u6709\u95dcVG<\/p>\n<table>\n<tr>\n<td>vgdisplay<\/td>\n<td>\u986f\u793aVG<\/td>\n<\/tr>\n<tr>\n<td>vgcreate<\/td>\n<td>\u5efa\u7acbVG<\/td>\n<\/tr>\n<tr>\n<td>vgextend<\/td>\n<td>\u589e\u52a0VG\u5927\u5c0f\u7528<\/td>\n<\/tr>\n<tr>\n<td>vgreduce<\/td>\n<td>\u6e1b\u5c11VG\u5927\u5c0f\u7528<\/td>\n<\/tr>\n<tr>\n<td>vgremove<\/td>\n<td>\u522a\u9664VG\u7528<\/td>\n<\/tr>\n<\/table>\n<p>\u6709\u95dc PV<\/p>\n<table>\n<tr>\n<td>pvdisplay<\/td>\n<td>\u986f\u793aPV<\/td>\n<\/tr>\n<tr>\n<td>pvcreate<\/td>\n<td>\u5efa\u7acbPV<\/td>\n<\/tr>\n<tr>\n<td>pvremove<\/td>\n<td>\u522a\u9664PV<\/td>\n<\/tr>\n<\/table>\n<p>\u6709\u95dcLV<\/p>\n<table>\n<tr>\n<td>lvdisplay<\/td>\n<td>\u986f\u793aLV<\/td>\n<\/tr>\n<tr>\n<td>lvcreate<\/td>\n<td>\u5efa\u7acbLV<\/td>\n<\/tr>\n<tr>\n<td>lvextend<\/td>\n<td>\u589e\u52a0LV\u5bb9\u91cf<\/td>\n<\/tr>\n<tr>\n<td>lvreduce<\/td>\n<td>\u6e1b\u5c11LV\u5bb9\u91cf<\/td>\n<\/tr>\n<tr>\n<td>lvremove<\/td>\n<td>\u522a\u9664LV<\/td>\n<\/tr>\n<\/table>\n<p>\u6574\u7406\u5b8c\u7562\uff0c\u5982\u679c\u6709\u60f3\u5230\u4ec0\u9ebc\uff0c\u5c0f\u745e\u518d\u4e0a\u4f86\u88dc\u5145^_^<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u70ba\u4ec0\u9ebc\u8981\u5beb\u9019\u4e00\u500bLVM \u7ba1\u7406\u5462\uff1f\u8ddf\u8c93\u7e9c\u4e00\u6a23\u7684\u72c0\u6cc1\uff0c\u597d\u591a\u4eba\u5728\u5c0f\u745e\u7684\u9ce5\u7ad9\u67e5LVM\uff0c\u53ea\u597d\u61c9\u89c0\u773e\u8981\u6c42\uff0c\u5beb\u4e00\u4e0bLinux [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[158,120,156,119,157,155,154],"class_list":["post-1267","post","type-post","status-publish","format-standard","hentry","category-mistech","tag-158","tag-dd","tag-lv","tag-lvm","tag-pe","tag-pv","tag-vg"],"_links":{"self":[{"href":"https:\/\/blog.nuface.tw\/index.php?rest_route=\/wp\/v2\/posts\/1267","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.nuface.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.nuface.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.nuface.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.nuface.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1267"}],"version-history":[{"count":38,"href":"https:\/\/blog.nuface.tw\/index.php?rest_route=\/wp\/v2\/posts\/1267\/revisions"}],"predecessor-version":[{"id":1812,"href":"https:\/\/blog.nuface.tw\/index.php?rest_route=\/wp\/v2\/posts\/1267\/revisions\/1812"}],"wp:attachment":[{"href":"https:\/\/blog.nuface.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.nuface.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.nuface.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}