{"id":105,"date":"2009-08-20T12:01:55","date_gmt":"2009-08-20T12:01:55","guid":{"rendered":"http:\/\/www.houquner.com\/?p=389"},"modified":"2009-08-20T12:01:55","modified_gmt":"2009-08-20T12:01:55","slug":"linux-lvm-%e7%9a%84%e4%bd%bf%e7%94%a8%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.houquner.com\/index.php\/archives\/105","title":{"rendered":"Linux LVM \u7684\u4f7f\u7528\u8be6\u89e3"},"content":{"rendered":"

\u6458\u8981\uff1a Linux\u7528\u6237\u5b89\u88c5Linux\u64cd\u4f5c\u7cfb\u7edf\u65f6\u9047\u5230\u7684\u4e00\u4e2a\u6700\u5e38\u89c1\u7684\u96be\u4ee5\u51b3\u5b9a\u7684\u95ee\u9898\u5c31\u662f\u5982\u4f55\u6b63\u786e\u5730\u7ed9\u8bc4\u4f30\u5404\u5206\u533a\u5927\u5c0f\uff0c\u4ee5\u5206\u914d\u5408\u9002\u7684\u786c\u76d8\u7a7a\u95f4\u3002\u800c\u9047\u5230\u51fa\u73b0\u67d0\u4e2a\u5206\u533a\u7a7a\u95f4\u8017\u5c3d\u65f6\uff0c\u89e3\u51b3\u7684\u65b9\u6cd5\u901a\u5e38\u662f\u4f7f\u7528\u7b26\u53f7\u94fe\u63a5\uff0c\u6216\u8005\u4f7f\u7528\u8c03\u6574\u5206\u533a\u5927\u5c0f\u7684\u5de5\u5177(\u6bd4\u5982Patition Magic\u7b49)\uff0c\u4f46\u8fd9\u90fd\u53ea\u662f\u6682\u65f6\u89e3\u51b3\u529e\u6cd5\uff0c\u6ca1\u6709\u6839\u672c\u89e3\u51b3\u95ee\u9898\u3002\u968f\u7740Linux\u7684\u903b\u8f91\u76d8\u5377\u7ba1\u7406\u529f\u80fd\u7684\u51fa\u73b0\uff0c\u8fd9\u4e9b\u95ee\u9898\u90fd\u8fce\u5203\u800c\u89e3\uff0c\u672c\u6587\u5c31\u6df1\u5165\u8ba8\u8bbaLVM\u6280\u672f\uff0c\u4f7f\u5f97\u7528\u6237\u5728\u65e0\u9700\u505c\u673a\u7684\u60c5\u51b5\u4e0b\u65b9\u4fbf\u5730\u8c03\u6574\u5404\u4e2a\u5206\u533a\u5927\u5c0f\u3002<\/p>\n

\u4e00\u3001 \u524d\u8a00<\/p>\n

\u6bcf\u4e2aLinux\u4f7f\u7528\u8005\u5728\u5b89\u88c5Linux\u65f6 \u90fd\u4f1a\u9047\u5230\u8fd9\u6837\u7684\u56f0\u5883\uff1a\u5728\u4e3a\u7cfb\u7edf\u5206\u533a\u65f6\uff0c\u5982\u4f55\u7cbe\u786e\u8bc4\u4f30\u548c\u5206\u914d\u5404\u4e2a\u786c\u76d8\u5206\u533a\u7684\u5bb9\u91cf\uff0c\u56e0\u4e3a\u7cfb\u7edf\u7ba1\u7406\u5458\u4e0d\u4f46\u8981\u8003\u8651\u5230\u5f53\u524d\u67d0\u4e2a\u5206\u533a\u9700\u8981\u7684\u5bb9\u91cf\uff0c\u8fd8\u8981\u9884\u89c1\u8be5\u5206\u533a\u4ee5\u540e\u53ef \u80fd\u9700\u8981\u7684\u5bb9\u91cf\u7684\u6700\u5927\u503c\u3002\u56e0\u4e3a\u5982\u679c\u4f30\u8ba1\u4e0d\u51c6\u786e\uff0c\u5f53\u9047\u5230\u67d0\u4e2a\u5206\u533a\u4e0d\u591f\u7528\u65f6\u7ba1\u7406\u5458\u53ef\u80fd\u751a\u81f3\u8981\u5907\u4efd\u6574\u4e2a\u7cfb\u7edf\u3001\u6e05\u9664\u786c\u76d8\u3001\u91cd\u65b0\u5bf9\u786c\u76d8\u5206\u533a\uff0c\u7136\u540e\u6062\u590d\u6570\u636e\u5230\u65b0\u5206\u533a\u3002\n\n\u867d\u7136\u73b0\u5728\u6709\u5f88\u591a\u52a8\u6001\u8c03\u6574\u78c1\u76d8\u7684\u5de5\u5177\u53ef\u4ee5\u4f7f\u7528\uff0c\u4f8b\u5982Partation Magic\u7b49\u7b49\uff0c\u4f46\u662f\u5b83\u5e76\u4e0d\u80fd\u5b8c\u5168\u89e3\u51b3\u95ee\u9898\uff0c\u56e0\u4e3a\u67d0\u4e2a\u5206\u533a\u53ef\u80fd\u4f1a\u518d\u6b21\u88ab\u8017\u5c3d\uff1b\u53e6\u5916\u4e00\u4e2a\u65b9\u9762\u8fd9\u9700\u8981\u91cd\u65b0\u5f15\u5bfc\u7cfb\u7edf\u624d\u80fd\u5b9e\u73b0\uff0c\u5bf9\u4e8e\u5f88\u591a\u5173\u952e\u7684\u670d\u52a1\u5668\uff0c\u505c\u673a\u662f\u4e0d\u53ef\u63a5\u53d7\u7684\uff0c\u800c\u4e14\u5bf9\u4e8e\u6dfb\u52a0\u65b0\u786c\u76d8\uff0c\u5e0c\u671b\u4e00\u4e2a\u80fd\u8de8\u8d8a\u591a\u4e2a\u786c\u76d8\u9a71\u52a8\u5668\u7684\u6587\u4ef6\u7cfb\u7edf\u65f6\uff0c\u5206\u533a\u8c03\u6574\u7a0b\u5e8f\u5c31\u4e0d\u80fd\u89e3\u51b3\u95ee\u9898\u3002\n\n\u56e0\u6b64\u5b8c\u7f8e\u7684\u89e3\u51b3\u65b9\u6cd5\u5e94\u8be5\u662f\u5728\u96f6\u505c\u673a\u524d\u63d0\u4e0b\u53ef\u4ee5\u81ea\u5982\u5bf9\u6587\u4ef6\u7cfb\u7edf\u7684\u5927\u5c0f\u8fdb\u884c\u8c03\u6574\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5b9e\u73b0\u6587\u4ef6\u7cfb\u7edf\u8de8\u8d8a\u4e0d\u540c\u78c1\u76d8\u548c\u5206\u533a\u3002\u5e78\u8fd0\u7684\u662fLinux\u63d0\u4f9b\u7684\u903b\u8f91\u76d8\u5377\u7ba1\u7406\uff08LVM\uff0cLogical Volume Manager\uff09\u673a\u5236\u5c31\u662f\u4e00\u4e2a\u5b8c\u7f8e\u7684\u89e3\u51b3\u65b9\u6848\u3002\n\nLVM\u662f\u903b\u8f91\u76d8\u5377\u7ba1\u7406\uff08Logical Volume Manager\uff09\u7684\u7b80\u79f0\uff0c\u5b83\u662fLinux\u73af\u5883\u4e0b\u5bf9\u78c1\u76d8\u5206\u533a\u8fdb\u884c\u7ba1\u7406\u7684\u4e00\u79cd\u673a\u5236\uff0cLVM\u662f\u5efa\u7acb\u5728\u786c\u76d8\u548c\u5206\u533a\u4e4b\u4e0a\u7684\u4e00\u4e2a\u903b\u8f91\u5c42\uff0c\u6765\u63d0\u9ad8\u78c1\u76d8\u5206\u533a\u7ba1\u7406\u7684\u7075\u6d3b\u6027\u3002\u901a\u8fc7LVM\u7cfb\u7edf\u7ba1\u7406\u5458\u53ef\u4ee5\u8f7b\u677e\u7ba1\u7406\u78c1\u76d8\u5206\u533a\uff0c\u5982\uff1a\u5c06\u82e5\u5e72\u4e2a\u78c1\u76d8\u5206\u533a\u8fde\u63a5\u4e3a\u4e00\u4e2a\u6574\u5757\u7684\u5377\u7ec4\uff08volume group\uff09\uff0c\u5f62\u6210\u4e00\u4e2a\u5b58\u50a8\u6c60\u3002\u7ba1\u7406\u5458\u53ef\u4ee5\u5728\u5377\u7ec4\u4e0a\u968f\u610f\u521b\u5efa\u903b\u8f91\u5377\u7ec4\uff08logical volumes\uff09\uff0c\u5e76\u8fdb\u4e00\u6b65\u5728\u903b\u8f91\u5377\u7ec4\u4e0a\u521b\u5efa\u6587\u4ef6\u7cfb\u7edf\u3002\u7ba1\u7406\u5458\u901a\u8fc7LVM\u53ef\u4ee5\u65b9\u4fbf\u7684\u8c03\u6574\u5b58\u50a8\u5377\u7ec4\u7684\u5927\u5c0f\uff0c\u5e76\u4e14\u53ef\u4ee5\u5bf9\u78c1\u76d8\u5b58\u50a8\u6309\u7167\u7ec4\u7684\u65b9\u5f0f\u8fdb\u884c\u547d\u540d\u3001\u7ba1\u7406\u548c\u5206\u914d\uff0c\u4f8b\u5982\u6309\u7167\u4f7f\u7528\u7528\u9014\u8fdb\u884c\u5b9a\u4e49\uff1a\u201cdevelopment\u201d\u548c\u201csales\u201d\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u7269\u7406\u78c1\u76d8\u540d\u201csda\u201d\u548c\u201csdb\u201d\u3002\u800c\u4e14\u5f53\u7cfb\u7edf\u6dfb\u52a0\u4e86\u65b0\u7684\u78c1\u76d8\uff0c\u901a\u8fc7LVM\u7ba1\u7406\u5458\u5c31\u4e0d\u5fc5\u5c06\u78c1\u76d8\u7684\u6587\u4ef6\u79fb\u52a8\u5230\u65b0\u7684\u78c1\u76d8\u4e0a\u4ee5\u5145\u5206\u5229\u7528\u65b0\u7684\u5b58\u50a8\u7a7a\u95f4\uff0c\u800c\u662f\u76f4\u63a5\u6269\u5c55\u6587\u4ef6\u7cfb\u7edf\u8de8\u8d8a\u78c1\u76d8\u5373\u53ef\u3002\n<\/code><\/pre>\n
\u4e8c\u3001 LVM\u57fa\u672c\u672f\u8bed<\/p>\n
\u524d\u9762\u8c08\u5230\uff0cLVM\u662f\u5728\u78c1\u76d8\u5206\u533a\u548c\u6587\u4ef6\u7cfb\u7edf\u4e4b\u95f4\u6dfb\u52a0\u7684\u4e00\u4e2a\u903b\u8f91\u5c42\uff0c\u6765\u4e3a\u6587\u4ef6\u7cfb\u7edf\u5c4f\u853d\u4e0b\u5c42\u78c1\u76d8\u5206\u533a\u5e03\u5c40\uff0c\u63d0\u4f9b\u4e00\u4e2a\u62bd\u8c61\u7684\u76d8\u5377\uff0c\u5728\u76d8\u5377\u4e0a\u5efa\u7acb\u6587\u4ef6\u7cfb\u7edf\u3002\u9996\u5148\u6211\u4eec\u8ba8\u8bba\u4ee5\u4e0b\u51e0\u4e2aLVM\u672f\u8bed\uff1a\n<\/code><\/pre>\n
\u7269\u7406\u5b58\u50a8\u4ecb\u8d28\uff08The physical media\uff09
\n\u8fd9\u91cc\u6307\u7cfb\u7edf\u7684\u5b58\u50a8\u8bbe\u5907\uff1a\u786c\u76d8\uff0c\u5982\uff1a\/dev\/hda\u3001\/dev\/sda\u7b49\u7b49\uff0c\u662f\u5b58\u50a8\u7cfb\u7edf\u6700\u4f4e\u5c42\u7684\u5b58\u50a8\u5355\u5143\u3002
\n\u7269\u7406\u5377\uff08physical volume\uff09
\n\u7269\u7406\u5377\u5c31\u662f\u6307\u786c\u76d8\u5206\u533a\u6216\u4ece\u903b\u8f91\u4e0a\u4e0e\u78c1\u76d8\u5206\u533a\u5177\u6709\u540c\u6837\u529f\u80fd\u7684\u8bbe\u5907(\u5982RAID)\uff0c\u662fLVM\u7684\u57fa\u672c\u5b58\u50a8\u903b\u8f91\u5757\uff0c\u4f46\u548c\u57fa\u672c\u7684\u7269\u7406\u5b58\u50a8\u4ecb\u8d28\uff08\u5982\u5206\u533a\u3001\u78c1\u76d8\u7b49\uff09\u6bd4\u8f83\uff0c\u5374\u5305\u542b\u6709\u4e0eLVM\u76f8\u5173\u7684\u7ba1\u7406\u53c2\u6570\u3002
\n\u5377\u7ec4\uff08Volume Group\uff09
\nLVM\u5377\u7ec4\u7c7b\u4f3c\u4e8e\u975eLVM\u7cfb\u7edf\u4e2d\u7684\u7269\u7406\u786c\u76d8\uff0c\u5176\u7531\u7269\u7406\u5377\u7ec4\u6210\u3002\u53ef\u4ee5\u5728\u5377\u7ec4\u4e0a\u521b\u5efa\u4e00\u4e2a\u6216\u591a\u4e2a\u201cLVM\u5206\u533a\u201d\uff08\u903b\u8f91\u5377\uff09\uff0cLVM\u5377\u7ec4\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u7269\u7406\u5377\u7ec4\u6210\u3002
\n\u903b\u8f91\u5377\uff08logical volume\uff09
\nLVM\u7684\u903b\u8f91\u5377\u7c7b\u4f3c\u4e8e\u975eLVM\u7cfb\u7edf\u4e2d\u7684\u786c\u76d8\u5206\u533a\uff0c\u5728\u903b\u8f91\u5377\u4e4b\u4e0a\u53ef\u4ee5\u5efa\u7acb\u6587\u4ef6\u7cfb\u7edf(\u6bd4\u5982\/home\u6216\u8005\/usr\u7b49)\u3002
\nPE\uff08physical extent\uff09
\n\u6bcf\u4e00\u4e2a\u7269\u7406\u5377\u88ab\u5212\u5206\u4e3a\u79f0\u4e3aPE(Physical Extents)\u7684\u57fa\u672c\u5355\u5143\uff0c\u5177\u6709\u552f\u4e00\u7f16\u53f7\u7684PE\u662f\u53ef\u4ee5\u88abLVM\u5bfb\u5740\u7684\u6700\u5c0f\u5355\u5143\u3002PE\u7684\u5927\u5c0f\u662f\u53ef\u914d\u7f6e\u7684\uff0c\u9ed8\u8ba4\u4e3a4MB\u3002
\nLE\uff08logical extent\uff09
\n\u903b\u8f91\u5377\u4e5f\u88ab\u5212\u5206\u4e3a\u88ab\u79f0\u4e3aLE(Logical Extents) \u7684\u53ef\u88ab\u5bfb\u5740\u7684\u57fa\u672c\u5355\u4f4d\u3002\u5728\u540c\u4e00\u4e2a\u5377\u7ec4\u4e2d\uff0cLE\u7684\u5927\u5c0f\u548cPE\u662f\u76f8\u540c\u7684\uff0c\u5e76\u4e14\u4e00\u4e00\u5bf9\u5e94\u3002<\/p>\n
\u9996\u5148\u53ef\u4ee5\u770b\u5230\uff0c\u7269\u7406\u5377\uff08PV\uff09\u88ab\u7531\u5927\u5c0f\u7b49\u540c\u7684\u57fa\u672c\u5355\u5143PE\u7ec4\u6210\u3002\n\n\n\u4e00\u4e2a\u5377\u7ec4\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u7269\u7406\u5377\u7ec4\u6210\uff0c\n\n\n\u4ece\u4e0a\u56fe\u53ef\u4ee5\u770b\u5230\uff0cPE\u548cLE\u6709\u7740\u4e00\u4e00\u5bf9\u5e94\u7684\u5173\u7cfb\u3002\u903b\u8f91\u5377\u5efa\u7acb\u5728\u5377\u7ec4\u4e0a\u3002\u903b\u8f91\u5377\u5c31\u76f8\u5f53\u4e8e\u975eLVM\u7cfb\u7edf\u7684\u78c1\u76d8\u5206\u533a\uff0c\u53ef\u4ee5\u5728\u5176\u4e0a\u521b\u5efa\u6587\u4ef6\u7cfb\u7edf\u3002\n\n\u4e0b\u56fe\u662f\u78c1\u76d8\u5206\u533a\u3001\u5377\u7ec4\u3001\u903b\u8f91\u5377\u548c\u6587\u4ef6\u7cfb\u7edf\u4e4b\u95f4\u7684\u903b\u8f91\u5173\u7cfb\u7684\u793a\u610f\u56fe\uff1a\n\n\n\u548c\u975eLVM\u7cfb\u7edf\u5c06\u5305\u542b\u5206\u533a\u4fe1\u606f\u7684\u5143\u6570\u636e\u4fdd\u5b58\u5728\u4f4d\u4e8e\u5206\u533a\u7684\u8d77\u59cb\u4f4d\u7f6e\u7684\u5206\u533a\u8868\u4e2d\u4e00\u6837\uff0c\u903b\u8f91\u5377\u4ee5\u53ca\u5377\u7ec4\u76f8\u5173\u7684\u5143\u6570\u636e\u4e5f\u662f\u4fdd\u5b58\u5728\u4f4d\u4e8e\u7269\u7406\u5377\u8d77\u59cb\u5904\u7684VGDA(\u5377\u7ec4\u63cf\u8ff0\u7b26\u533a\u57df)\u4e2d\u3002VGDA\u5305\u62ec\u4ee5\u4e0b\u5185\u5bb9\uff1a PV\u63cf\u8ff0\u7b26\u3001VG\u63cf\u8ff0\u7b26\u3001LV\u63cf\u8ff0\u7b26\u3001\u548c\u4e00\u4e9bPE\u63cf\u8ff0\u7b26 \u3002\n\n\u7cfb\u7edf\u542f\u52a8LVM\u65f6\u6fc0\u6d3bVG\uff0c\u5e76\u5c06VGDA\u52a0\u8f7d\u81f3\u5185\u5b58\uff0c\u6765\u8bc6\u522bLV\u7684\u5b9e\u9645\u7269\u7406\u5b58\u50a8\u4f4d\u7f6e\u3002\u5f53\u7cfb\u7edf\u8fdb\u884cI\/O\u64cd\u4f5c\u65f6\uff0c\u5c31\u4f1a\u6839\u636eVGDA\u5efa\u7acb\u7684\u6620\u5c04\u673a\u5236\u6765\u8bbf\u95ee\u5b9e\u9645\u7684\u7269\u7406\u4f4d\u7f6e\u3002\n<\/code><\/pre>\n
\u4e09\u3001 \u5b89\u88c5LVM<\/p>\n
\u9996\u5148\u786e\u5b9a\u7cfb\u7edf\u4e2d\u662f\u5426\u5b89\u88c5\u4e86lvm\u5de5\u5177\uff1a\n\n[root@www root]# rpm \u2013qa|grep lvm\nlvm-1.0.3-4\n\n\u5982\u679c\u547d\u4ee4\u7ed3\u679c\u8f93\u5165\u7c7b\u4f3c\u4e8e\u4e0a\u4f8b\uff0c\u90a3\u4e48\u8bf4\u660e\u7cfb\u7edf\u5df2\u7ecf\u5b89\u88c5\u4e86LVM\u7ba1\u7406\u5de5\u5177\uff1b\u5982\u679c\u547d\u4ee4\u6ca1\u6709\u8f93\u51fa\u5219\u8bf4\u660e\u6ca1\u6709\u5b89\u88c5LVM\u7ba1\u7406\u5de5\u5177\uff0c\u5219\u9700\u8981\u4ece\u7f51\u7edc\u4e0b\u8f7d\u6216\u8005\u4ece\u5149\u76d8\u88c5LVM rpm\u5de5\u5177\u5305\u3002\n\n\u5b89\u88c5\u4e86LVM\u7684RPM\u8f6f\u4ef6\u5305\u4ee5\u540e\uff0c\u8981\u4f7f\u7528LVM\u8fd8\u9700\u8981\u914d\u7f6e\u5185\u6838\u652f\u6301LVM\u3002RedHat\u9ed8\u8ba4\u5185\u6838\u662f\u652f\u6301LVM\u7684\uff0c\u5982\u679c\u9700\u8981\u91cd\u65b0\u7f16\u8bd1\u5185\u6838\uff0c\u5219\u9700\u8981\u5728\u914d\u7f6e\u5185\u6838\u65f6\uff0c\u8fdb\u5165Multi-device Support (RAID and LVM)\u5b50\u83dc\u5355\uff0c\u9009\u4e2d\u4ee5\u4e0b\u4e24\u4e2a\u9009\u9879\uff1a\n<\/code><\/pre>\n
\u3000\u3000[*] Multiple devices driver support (RAID and LVM)
\n\u3000\u3000 Logical volume manager (LVM) Support<\/p>\n
\u7136\u540e\u91cd\u65b0\u7f16\u8bd1\u5185\u6838\uff0c\u5373\u53ef\u5c06LVM\u7684\u652f\u6301\u6dfb\u52a0\u5230\u65b0\u5185\u6838\u4e2d\u3002\n\n\u4e3a\u4e86\u4f7f\u7528LVM\uff0c\u8981\u786e\u4fdd\u5728\u7cfb\u7edf\u542f\u52a8\u65f6\u6fc0\u6d3bLVM\uff0c\u5e78\u8fd0\u7684\u662f\u5728RedHat7.0\u4ee5\u540e\u7684\u7248\u672c\uff0c\u7cfb\u7edf\u542f\u52a8\u811a\u672c\u5df2\u7ecf\u5177\u6709\u5bf9\u6fc0\u6d3bLVM\u7684\u652f\u6301\uff0c\u5728\/etc\/rc.d\/rc.sysinit\u4e2d\u6709\u4ee5\u4e0b\u5185\u5bb9\uff1a\n<\/code><\/pre>\n
LVM initialization<\/h1>\n
if [ -e \/proc\/lvm -a -x \/sbin\/vgchange -a -f \/etc\/lvmtab ]; then
\naction $”Setting up Logical Volume Management:” \/sbin\/vgscan && \/sbin\/vgchange -a y
\nfi<\/p>\n
\u5176\u4e2d\u5173\u952e\u662f\u4e24\u4e2a\u547d\u4ee4\uff0cvgscan\u547d\u4ee4\u5b9e\u73b0\u626b\u63cf\u6240\u6709\u78c1\u76d8\u5f97\u5230\u5377\u7ec4\u4fe1\u606f\uff0c\u5e76\u521b\u5efa\u6587\u4ef6\u5377\u7ec4\u6570\u636e\u6587\u4ef6\/etc\/lvmtab\u548c\/etc\/lvmtab.d\/*\uff1bvgchange -a y\u547d\u4ee4\u6fc0\u6d3b\u7cfb\u7edf\u6240\u6709\u5377\u7ec4\u3002\n<\/code><\/pre>\n
\u56db\u3001 \u521b\u5efa\u548c\u7ba1\u7406LVM<\/p>\n
\u8981\u521b\u5efa\u4e00\u4e2aLVM\u7cfb\u7edf\uff0c\u4e00\u822c\u9700\u8981\u7ecf\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\uff1a
\n1\u3001 \u521b\u5efa\u5206\u533a<\/p>\n
\u4f7f\u7528\u5206\u533a\u5de5\u5177\uff08\u5982\uff1afdisk\u7b49\uff09\u521b\u5efaLVM\u5206\u533a\uff0c\u65b9\u6cd5\u548c\u521b\u5efa\u5176\u4ed6\u4e00\u822c\u5206\u533a\u7684\u65b9\u5f0f\u662f\u4e00\u6837\u7684\uff0c\u533a\u522b\u4ec5\u4ec5\u662fLVM\u7684\u5206\u533a\u7c7b\u578b\u4e3a8e\u3002\n<\/code><\/pre>\n
2\u3001 \u521b\u5efa\u7269\u7406\u5377<\/p>\n
\u521b\u5efa\u7269\u7406\u5377\u7684\u547d\u4ee4\u4e3apvcreate\uff0c\u5229\u7528\u8be5\u547d\u4ee4\u5c06\u5e0c\u671b\u6dfb\u52a0\u5230\u5377\u7ec4\u7684\u6240\u6709\u5206\u533a\u6216\u8005\u78c1\u76d8\u521b\u5efa\u4e3a\u7269\u7406\u5377\u3002\u5c06\u6574\u4e2a\u78c1\u76d8\u521b\u5efa\u4e3a\u7269\u7406\u5377\u7684\u547d\u4ee4\u4e3a\uff1a\n<\/code><\/pre>\n
pvcreate \/dev\/hdb<\/h1>\n
\u5c06\u5355\u4e2a\u5206\u533a\u521b\u5efa\u4e3a\u7269\u7406\u5377\u7684\u547d\u4ee4\u4e3a\uff1a\n\n    # pvcreate \/dev\/hda5\n<\/code><\/pre>\n
3\u3001 \u521b\u5efa\u5377\u7ec4<\/p>\n
\u521b\u5efa\u5377\u7ec4\u7684\u547d\u4ee4\u4e3avgcreate\uff0c\u5c06\u4f7f\u7528pvcreate\u5efa\u7acb\u7684\u7269\u7406\u5377\u521b\u5efa\u4e3a\u4e00\u4e2a\u5b8c\u6574\u7684\u5377\u7ec4\uff1a\n\n    # vgcreate web_document \/dev\/hda5 \/dev\/hdb\n\nvgcreate\u547d\u4ee4\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u6307\u5b9a\u8be5\u5377\u7ec4\u7684\u903b\u8f91\u540d\uff1aweb_document\u3002\u540e\u9762\u53c2\u6570\u662f\u6307\u5b9a\u5e0c\u671b\u6dfb\u52a0\u5230\u8be5\u5377\u7ec4\u7684\u6240\u6709\u5206\u533a\u548c\u78c1\u76d8\u3002vgcreate\u5728\u521b\u5efa\u5377\u7ec4 web_document \u4ee5\u5916\uff0c\u8fd8\u8bbe\u7f6e\u4f7f\u7528\u5927\u5c0f\u4e3a4 MB\u7684PE\uff08\u9ed8\u8ba4\u4e3a4MB\uff09\uff0c\u8fd9\u8868\u793a\u5377\u7ec4\u4e0a\u521b\u5efa\u7684\u6240\u6709\u903b\u8f91\u5377\u90fd\u4ee5 4 MB \u4e3a\u589e\u91cf\u5355\u4f4d\u6765\u8fdb\u884c\u6269\u5145\u6216\u7f29\u51cf\u3002\u7531\u4e8e\u5185\u6838\u539f\u56e0\uff0cPE\u5927\u5c0f\u51b3\u5b9a\u4e86\u903b\u8f91\u5377\u7684\u6700\u5927\u5927\u5c0f\uff0c4 MB \u7684PE\u51b3\u5b9a\u4e86\u5355\u4e2a\u903b\u8f91\u5377\u6700\u5927\u5bb9\u91cf\u4e3a 256 GB\uff0c\u82e5\u5e0c\u671b\u4f7f\u7528\u5927\u4e8e256G\u7684\u903b\u8f91\u5377\u5219\u521b\u5efa\u5377\u7ec4\u65f6\u6307\u5b9a\u66f4\u5927\u7684PE\u3002PE\u5927\u5c0f\u8303\u56f4\u4e3a8 KB \u5230 512 MB\uff0c\u5e76\u4e14\u5fc5\u987b\u603b\u662f 2 \u7684\u500d\u6570\uff08\u4f7f\u7528-s\u6307\u5b9a\uff0c\u5177\u4f53\u8bf7\u53c2\u8003man vgcreate\uff09\u3002\n<\/code><\/pre>\n
4\u3001 \u6fc0\u6d3b\u5377\u7ec4<\/p>\n
\u4e3a\u4e86\u7acb\u5373\u4f7f\u7528\u5377\u7ec4\u800c\u4e0d\u662f\u91cd\u65b0\u542f\u52a8\u7cfb\u7edf\uff0c\u53ef\u4ee5\u4f7f\u7528vgchange\u6765\u6fc0\u6d3b\u5377\u7ec4\uff1a\n\n    # vgchange -a y web_document\n<\/code><\/pre>\n
5\u3001 \u6dfb\u52a0\u65b0\u7684\u7269\u7406\u5377\u5230\u5377\u7ec4\u4e2d<\/p>\n
\u5f53\u7cfb\u7edf\u5b89\u88c5\u4e86\u65b0\u7684\u78c1\u76d8\u5e76\u521b\u5efa\u4e86\u65b0\u7684\u7269\u7406\u5377\uff0c\u800c\u8981\u5c06\u5176\u6dfb\u52a0\u5230\u5df2\u6709\u5377\u7ec4\u65f6\uff0c\u5c31\u9700\u8981\u4f7f\u7528vgextend\u547d\u4ee4\uff1a\n\n    # vgextend web_document \/dev\/hdc1\n\n\u8fd9\u91cc\/dev\/hdc1\u662f\u65b0\u7684\u7269\u7406\u5377\u3002\n<\/code><\/pre>\n
6\u3001 \u4ece\u5377\u7ec4\u4e2d\u5220\u9664\u4e00\u4e2a\u7269\u7406\u5377<\/p>\n
\u8981\u4ece\u4e00\u4e2a\u5377\u7ec4\u4e2d\u5220\u9664\u4e00\u4e2a\u7269\u7406\u5377\uff0c\u9996\u5148\u8981\u786e\u8ba4\u8981\u5220\u9664\u7684\u7269\u7406\u5377\u6ca1\u6709\u88ab\u4efb\u4f55\u903b\u8f91\u5377\u6b63\u5728\u4f7f\u7528\uff0c\u5c31\u8981\u4f7f\u7528pvdisplay\u547d\u4ee4\u5bdf\u770b\u4e00\u4e2a\u8be5\u7269\u7406\u5377\u4fe1\u606f\uff1a\n\n\n\u5982\u679c\u67d0\u4e2a\u7269\u7406\u5377\u6b63\u5728\u88ab\u903b\u8f91\u5377\u6240\u4f7f\u7528\uff0c\u5c31\u9700\u8981\u5c06\u8be5\u7269\u7406\u5377\u7684\u6570\u636e\u5907\u4efd\u5230\u5176\u4ed6\u5730\u65b9\uff0c\u7136\u540e\u518d\u5220\u9664\u3002\u5220\u9664\u7269\u7406\u5377\u7684\u547d\u4ee4\u4e3avgreduce\uff1a\n\n    # vgreduce web_document \/dev\/hda1\n<\/code><\/pre>\n
7\u3001 \u521b\u5efa\u903b\u8f91\u5377<\/p>\n
\u521b\u5efa\u903b\u8f91\u5377\u7684\u547d\u4ee4\u4e3alvcreate\uff1a\n\n    # lvcreate -L1500 \u2013nwww1 web_document\n\n\u8be5\u547d\u4ee4\u5c31\u5728\u5377\u7ec4web_document\u4e0a\u521b\u5efa\u540d\u5b57\u4e3awww1\uff0c\u5927\u5c0f\u4e3a1500M\u7684\u903b\u8f91\u5377\uff0c\u5e76\u4e14\u8bbe\u5907\u5165\u53e3\u4e3a\/dev\/web_document\/www1\uff08web_document\u4e3a\u5377\u7ec4\u540d\uff0cwww1\u4e3a\u903b\u8f91\u5377\u540d\uff09\u3002\u5982\u679c\u5e0c\u671b\u521b\u5efa\u4e00\u4e2a\u4f7f\u7528\u5168\u90e8\u5377\u7ec4\u7684\u903b\u8f91\u5377\uff0c\u5219\u9700\u8981\u9996\u5148\u5bdf\u770b\u8be5\u5377\u7ec4\u7684PE\u6570\uff0c\u7136\u540e\u5728\u521b\u5efa\u903b\u8f91\u5377\u65f6\u6307\u5b9a\uff1a\n<\/code><\/pre>\n
vgdisplay web_document| grep “Total PE”<\/h1>\n
Total PE 45230<\/p>\n
lvcreate -l 45230 web_document -n www1<\/h1>\n
8\u3001 \u521b\u5efa\u6587\u4ef6\u7cfb\u7edf<\/p>\n
\u7b14\u8005\u63a8\u8350\u4f7f\u7528reiserfs\u6587\u4ef6\u7cfb\u7edf\uff0c\u6765\u66ff\u4ee3ext2\u548cext3\uff1a\n\n\n\u521b\u5efa\u4e86\u6587\u4ef6\u7cfb\u7edf\u4ee5\u540e\uff0c\u5c31\u53ef\u4ee5\u52a0\u8f7d\u5e76\u4f7f\u7528\u5b83\uff1a\n<\/code><\/pre>\n
mkdir \/data\/wwwroot<\/h1>\n
mount \/dev\/web_document\/www1 \/data\/wwwroot<\/h1>\n
\u5982\u679c\u5e0c\u671b\u7cfb\u7edf\u542f\u52a8\u65f6\u81ea\u52a8\u52a0\u8f7d\u6587\u4ef6\u7cfb\u7edf\uff0c\u5219\u8fd8\u9700\u8981\u5728\/etc\/fstab\u4e2d\u6dfb\u52a0\u5185\u5bb9\uff1a<\/p>\n
\/dev\/web_document\/www1 \/data\/wwwroot reiserfs defaults 1 2
\n9\u3001 \u5220\u9664\u4e00\u4e2a\u903b\u8f91\u5377<\/p>\n
\u5220\u9664\u903b\u8f91\u5377\u4ee5\u524d\u9996\u5148\u9700\u8981\u5c06\u5176\u5378\u8f7d\uff0c\u7136\u540e\u5220\u9664\uff1a<\/p>\n
umount \/dev\/web_document\/www1<\/h1>\n
lvremove \/dev\/web_document\/www1<\/h1>\n
lvremove — do you really want to remove “\/dev\/web_document\/www1”? [y\/n]: y
\nlvremove — doing automatic backup of volume group “web_document”
\nlvremove — logical volume “\/dev\/web_document\/www1” successfully removed
\n10\u3001 \u6269\u5c55\u903b\u8f91\u5377\u5927\u5c0f<\/p>\n
\u7528\u60ef\u4e86\u4f20\u7edf\u8c03\u6574\u786c\u76d8\u5de5\u5177\u7684\u4eba\u53ef\u80fd\u4f1a\u8ba4\u4e3a\u6587\u4ef6\u7cfb\u7edf\u548c\u786c\u76d8\u7684\u5206\u533a\u4e4b\u95f4\u662f\u7edf\u4e00\u7684\uff0c\u5b9e\u9645\u4e0a\u4ed6\u4eec\u4e4b\u95f4\u5e76\u4e0d\u662f\u5b8c\u6574\u7684\u6574\u4f53(\u8fd9\u4e5f\u5c31\u662f\u4e3a\u4ec0\u4e48BSD\u53ef\u4ee5\u5728\u4e00\u4e2a\u786c\u76d8\u5206\u533a\u91cc\u9762\u5236\u4f5c\u591a\u4e2a\u6587\u4ef6\u7cfb\u7edf\u5206\u533a)\u3002\u60f3\u50cf\u4e00\u4e0b\u5e26\u6709\u79fb\u52a8\u5f0f\u4e66\u67b6\u7684\u4e66\u6a71\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7\u79fb\u52a8\u5f0f\u4e66\u67b6\u8c03\u6574\u4e66\u6a71\u91cc\u9762\u4e66\u7c4d\u7684\u4f4d\u7f6e\u3002\u628a\u4e66\u5f53\u6210\u6587\u4ef6\u7cfb\u7edf\uff0c\u4f60\u53ef\u4ee5\u5728\u4e66\u6a71\u91cc\u9762\u653e\u6ee1\u4e66\u7c4d\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u79fb\u52a8\u5f0f\u4e66\u67b6\u8c03\u6574\u4e66\u6a71\u7684\u7a7a\u95f4\u3002\u5f53\u7136\u4e5f\u53ef\u4ee5\u901a\u8fc7\u4e66\u67b6\u8c03\u6574\u4e66\u6a71\u91cc\u9762\u4e66\u7c4d\u5b58\u653e\u7684\u4f4d\u7f6e\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n
|||
\n+—————+—————+
\n|xxxxxxxxxxx|xxxxxx| |
\n|xxxxxxxxxxx|xxxxxx| |
\n+—————+—————+<\/p>\n
\u3000\u3000\u786c\u76d8\u5206\u533a\/dev\/hda1\u4e2d\u7684\u6587\u4ef6\u7cfb\u7edf\u5360\u6ee1\u4e86\u6574\u4e2a\u5206\u533a\uff0c\u800c\/dev\/hda2\u4e2d\u7684\u6587\u4ef6\u7cfb\u7edf\u53ea\u5360\u7528\u4e862\/3\u5de6\u53f3\u7684\u5206\u533a\u3002<\/p>\n
\u6240\u4ee5\u5728\u8c03\u6574\u903b\u8f91\u5377\u5bb9\u91cf\u5927\u5c0f\u7684\u540c\u65f6\u4e5f\u8981\u8c03\u6574\u5728\u8be5\u5377\u4e0a\u7684\u6587\u4ef6\u7cfb\u7edf\u7684\u5927\u5c0f\uff0c\u5f53\u8981\u589e\u5927\u5bb9\u91cf\u65f6\uff0c\u5148\u8c03\u6574\u5bb9\u91cf\uff0c\u540e\u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\uff0c\u82e5\u8981\u7f29\u5c0f\u5bb9\u91cf\u5219\u53cd\u4e4b\u3002<\/p>\n
LVM\u63d0\u4f9b\u4e86\u65b9\u4fbf\u8c03\u6574\u903b\u8f91\u5377\u5927\u5c0f\u7684\u80fd\u529b\uff0c\u6269\u5c55\u903b\u8f91\u5377\u5927\u5c0f\u7684\u547d\u4ee4\u662flvextend\uff1a<\/p>\n
lvextend -L12G \/dev\/web_document\/www1<\/h1>\n
lvextend — extending logical volume “\/dev\/web_document\/www1” to 12 GB
\nlvextend — doing automatic backup of volume group “web_document “
\nlvextend — logical volume “\/dev\/web_document\/www1” successfully extended<\/p>\n
\u4e0a\u9762\u7684\u547d\u4ee4\u5c31\u5b9e\u73b0\u5c06\u903b\u8f91\u5377www1\u7684\u5927\u5c0f\u6269\u62db\u4e3a12G\u3002<\/p>\n
lvextend -L+1G \/dev\/web_document\/www1<\/h1>\n
lvextend — extending logical volume “\/dev\/web_document\/www1” to 13 GB
\nlvextend — doing automatic backup of volume group “web_document “
\nlvextend — logical volume “\/dev\/web_document\/www1” successfully extended<\/p>\n
\u4e0a\u9762\u7684\u547d\u4ee4\u5c31\u5b9e\u73b0\u5c06\u903b\u8f91\u5377www1\u7684\u5927\u5c0f\u589e\u52a01G\u3002<\/p>\n
\u589e\u52a0\u4e86\u903b\u8f91\u5377\u7684\u5bb9\u91cf\u4ee5\u540e\uff0c\u5c31\u9700\u8981\u4fee\u6539\u6587\u4ef6\u7cfb\u7edf\u5927\u5c0f\u4ee5\u5b9e\u73b0\u5229\u7528\u6269\u5145\u7684\u7a7a\u95f4\u3002\u7b14\u8005\u63a8\u8350\u4f7f\u7528reiserfs\u6587\u4ef6\u7cfb\u7edf\u6765\u66ff\u4ee3ext2\u6216\u8005ext3\u3002\u56e0\u6b64\u8fd9\u91cc\u4ec5\u4ec5\u8ba8\u8bbareiserfs\u7684\u60c5\u51b5\u3002Reiserfs\u6587\u4ef6\u5de5\u5177\u63d0\u4f9b\u4e86\u6587\u4ef6\u7cfb\u7edf\u5927\u5c0f\u8c03\u6574\u5de5\u5177\uff1aresize_reiserfs\u3002\u5bf9\u4e8e\u5e0c\u671b\u8c03\u6574\u88ab\u52a0\u8f7d\u7684\u6587\u4ef6\u7cfb\u7edf\u5927\u5c0f\uff1a\n\n# resize_reiserfs -f \/dev\/web_document\/www1\n\n\u4e00\u822c\u5efa\u8bae\u6700\u597d\u5c06\u6587\u4ef6\u7cfb\u7edf\u5378\u8f7d\uff0c\u8c03\u6574\u5927\u5c0f\uff0c\u7136\u540e\u518d\u52a0\u8f7d\uff1a\n<\/code><\/pre>\n
umount \/dev\/web_document\/www1<\/h1>\n
resize_reiserfs \/dev\/web_document\/www1<\/h1>\n
mount -treiserfs \/dev\/web_document\/www1 \/data\/wwwroot<\/h1>\n
\u5bf9\u4e8e\u4f7f\u7528ext2\u6216ext3\u6587\u4ef6\u7cfb\u7edf\u7684\u7528\u6237\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u5de5\u5177<\/p>\n
 ext2resize\u3002http:\/\/sourceforge.net\/projects\/ext2resize\n<\/code><\/pre>\n
11\u3001 \u51cf\u5c11\u903b\u8f91\u5377\u5927\u5c0f<\/p>\n
\u4f7f\u7528lvreduce\u5373\u53ef\u5b9e\u73b0\u5bf9\u903b\u8f91\u5377\u7684\u5bb9\u91cf\uff0c\u540c\u6837\u9700\u8981\u9996\u5148\u5c06\u6587\u4ef6\u7cfb\u7edf\u5378\u8f7d\uff1a<\/p>\n
umount \/data\/wwwroot<\/h1>\n
resize_reiserfs -s-2G \/dev\/web_document\/www1<\/h1>\n
lvreduce -L-2G \/dev\/web_document\/www1<\/h1>\n
mount -treiserfs \/dev\/web_document\/www1 \/data\/wwwroot<\/h1>\n
\u4e94\u3001 \u603b\u7ed3<\/p>\n
\u6839\u636e\u4e0a\u9762\u7684\u8ba8\u8bba\u53ef\u4ee5\u770b\u5230\uff0cLVM\u5177\u6709\u5f88\u597d\u7684\u53ef\u4f38\u7f29\u6027\uff0c\u4f7f\u7528\u8d77\u6765\u975e\u5e38\u65b9\u4fbf\u3002\u53ef\u4ee5\u65b9\u4fbf\u5730\u5bf9\u5377\u7ec4\u3001\u903b\u8f91\u5377\u7684\u5927\u5c0f\u8fdb\u884c\u8c03\u6574\uff0c\u66f4\u8fdb\u4e00\u6b65\u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\u7684\u5927\u5c0f\u3002\u5982\u679c\u5e0c\u671b\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u8003LVM-HOWTO\u3002\n<\/code><\/pre>\n
\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1aKermit\u7684\u7f51\u7ad9<\/a> » Linux LVM \u7684\u4f7f\u7528\u8be6\u89e3<\/a><\/p>","protected":false},"excerpt":{"rendered":"
\u6458\u8981\uff1a Linux\u7528\u6237\u5b89\u88c5Linux\u64cd\u4f5c\u7cfb\u7edf\u65f6\u9047\u5230\u7684\u4e00\u4e2a\u6700\u5e38\u89c1\u7684\u96be\u4ee5\u51b3\u5b9a\u7684\u95ee\u9898\u5c31\u662f\u5982\u4f55\u6b63\u786e\u5730\u7ed9\u8bc4\u4f30\u5404\u5206\u533a\u5927\u5c0f\uff0c\u4ee5\u5206\u914d\u5408\u9002\u7684\u786c\u76d8\u7a7a\u95f4\u3002\u800c\u9047\u5230\u51fa\u73b0\u67d0\u4e2a\u5206\u533a\u7a7a\u95f4\u8017\u5c3d\u65f6\uff0c\u89e3\u51b3\u7684\u65b9\u6cd5\u901a\u5e38\u662f\u4f7f\u7528\u7b26\u53f7\u94fe\u63a5\uff0c\u6216\u8005\u4f7f\u7528\u8c03\u6574\u5206\u533a\u5927\u5c0f\u7684\u5de5\u5177(\u6bd4\u5982Patition Magi […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-105","post","type-post","status-publish","format-standard","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/www.houquner.com\/index.php\/wp-json\/wp\/v2\/posts\/105"}],"collection":[{"href":"https:\/\/www.houquner.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.houquner.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.houquner.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.houquner.com\/index.php\/wp-json\/wp\/v2\/comments?post=105"}],"version-history":[{"count":0,"href":"https:\/\/www.houquner.com\/index.php\/wp-json\/wp\/v2\/posts\/105\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.houquner.com\/index.php\/wp-json\/wp\/v2\/media?parent=105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.houquner.com\/index.php\/wp-json\/wp\/v2\/categories?post=105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.houquner.com\/index.php\/wp-json\/wp\/v2\/tags?post=105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}