{"id":52,"date":"2019-02-06T19:00:55","date_gmt":"2019-02-06T11:00:55","guid":{"rendered":""},"modified":"2020-10-08T13:37:59","modified_gmt":"2020-10-08T05:37:59","slug":"%e5%88%86%e4%ba%ab%ef%bc%9a%e3%80%8alinux%e5%b0%b1%e8%af%a5%e8%bf%99%e4%b9%88%e5%ad%a6-%e3%80%8b%e7%ac%ac7%e7%ab%a0-%e4%bd%bf%e7%94%a8raid%e4%b8%8elvm%e7%a3%81%e7%9b%98%e9%98%b5%e5%88%97%e6%8a%80","status":"publish","type":"post","link":"https:\/\/www.fatesky.com\/?p=52","title":{"rendered":"\u5206\u4eab\uff1a\u300aLinux\u5c31\u8be5\u8fd9\u4e48\u5b66 \u300b\u7b2c7\u7ae0 \u4f7f\u7528RAID\u4e0eLVM\u78c1\u76d8\u9635\u5217\u6280\u672f"},"content":{"rendered":"

\u63a8\u8350\u7b80\u8ff0\uff1a<\/h2>\n

\u8bf4\u5230Linux\u7cfb\u7edf\u4ece01\u5e74\u5f00\u59cb\u6211\u5c31\u4e00\u76f4\u5728\u63a5\u89e6\uff0c\u76f4\u523003\u5e74\u8fd8\u662f04\u5e74\u7684\u65f6\u5019\u5728\u60e0\u5dde\u65b0\u534e\u4e66\u5e97\u4e70\u4e86\u4e00\u672c\u300a<\/span>\u9e1f\u54e5\u7684\u79c1\u623f\u83dc<\/span>\u300b\uff0c\u81ea\u6b64\u6211\u7684LINUX\u8d77\u6b65\u624d\u7b97\u662f\u771f\u6b63\u7684\u5f00\u59cb\uff0c\u4eca\u5929\u5ffd\u7136\u5728\u7f51\u4e0a\u53d1\u73b0\u4e86\u4e00\u672c\u300aLinux\u5c31\u8be5\u8fd9\u4e48\u5b66\u300b<\/span>\u5fcd\u4e0d\u4f4f\u770b\u4e86\u4e8c\u7ae0\uff0c<\/span>\u89c9\u5f97\u8fd9\u672c\u4e66\u5728\u73b0\u65f6\u7684Linux\u73af\u5883\u4e0b\u66f4\u9002\u5408\u65b0\u624b\u5165\u95e8\uff0c\u4e0d\u7531\u5f3a\u70c8\u63a8\u8350\u4e00\u4e0b\uff0c\u5e76\u4e14\u81ea\u5df1\u4e5f\u51b3\u5b9a\u4e09\u6708\u4efd\u91cc\u6bcf\u5929\u5fc5\u770b\u4e00\u7ae0\u8282\uff0c\u5728\u770b\u7684\u540c\u65f6\u4e5f\u8f6c\u8f7d\u5728\u535a\u5ba2\u91cc\u3002<\/span>\u6e29\u6545\u77e5\u65b0\uff0c\u5b66\u4e60\u8fd9\u4e2a\u4e8b\u60c5\u6c38\u8fdc\u5e94\u8be5\u5728\u8def\u4e0a\uff01<\/span><\/p>\n

<\/div><\/p>\n

\u672c\u4e66\u76f8\u6bd4\u300a\u9e1f\u54e5\u7684linux\u79c1\u623f\u83dc\u300b\u6709\u4ec0\u4e48\u4f18\u52bf\uff1f<\/h2>\n

\u5766\u767d\u6765\u8bb2\uff0c\u9e1f\u54e5\u7684linux\u79c1\u623f\u83dc\u4e5f\u662f\u6211\u7684linux\u5165\u95e8\u4e66\u7c4d\uff0c\u6211\u7edd\u5bf9\u7684\u8ba4\u53ef\u9e1f\u54e5\u4e3a\u8fd9\u672c\u4e66\u7684\u4ed8\u51fa\uff0c\u5176\u4e66\u53d1\u884c\u91cf\u5de8\u5927\uff0c\u966a\u4f34\u4e86\u4e00\u4ee3\u7684\u8fd0\u7ef4\u4eba\u5458\uff0c\u751a\u81f3\u88ab\u5c01\u4e3a\u201clinux\u5165\u95e8\u795e\u4e66\u201d\uff0c\u6e10\u6e10\u7684\u4ece\u4e00\u672clinux\u6280\u672f\u4e66\u7c4d\uff0c\u4e0a\u5347\u81f3\u7cbe\u795e\u7684\u9ad8\u5ea6\uff0c\u4e0d\u5141\u8bb8\u518d\u6709\u4e00\u70b9\u53cd\u9a73\u4e4b\u58f0\uff0c\u4f46\u601d\u7d22\u518d\u4e09\uff0c\u8fd8\u662f\u51b3\u5b9a\u9610\u660e\u6211\u7684\u89c2\u70b9\uff0c\u4e0e\u521d\u5b66\u8005\u5206\u4eab\u4e0b\u8fd9\u4e0d\u540c\u7684\u770b\u6cd5\uff1a
\u9996\u5148\u9e1f\u54e5\u5728\u5f00\u7bc7\u5373\u63d0\u5230\u4e86\u5199\u4e66\u7684\u7f18\u7531\u662f\u56e0\u4e3a\u8bb0\u6027\u4e0d\u597d\uff0c\u6240\u4ee5\u60f3\u5199\u51fa\u4e00\u672c\u80fd\u591f\u653e\u5728\u6848\u5934\u7684\u5907\u5fd8\u5f55\uff0c\u5bf9\u4e66\u7c4d\u7684\u5185\u5bb9\u81ea\u7136\u5c31\u6ca1\u6709\u4e86\u592a\u591a\u7684\u7b5b\u9009\uff0c\u53cd\u800c\u4e00\u518d\u7684\u6269\u5927\u77e5\u8bc6\u8303\u56f4\uff0c\u6700\u7ec8\u5199\u51fa\u7684\u4e24\u672c\u4e66\u539a\u5ea6\u8db3\u8db3\u8d85\u8fc7\u5341\u5398\u7c73\uff0c\u6562\u95ee\u8fd9\u79cd\u201c\u5907\u5fd8\u5f55\u5f0f\u7684\u5165\u95e8\u4e66\u7c4d\u201d\u771f\u7684\u9002\u5408\u65b0\u624b\u6765\u8bfb\uff1f\u6211\u8ba4\u4e3a\u4e66\u7c4d\u65e2\u7136\u53d1\u884c\u4e86\uff0c\u5c31\u4e0d\u80fd\u518d\u662f\u4e2a\u5907\u5fd8\u5f55\uff0c\u800c\u5e94\u8be5\u662f\u901a\u8fc7\u4f5c\u8005\u7684\u7ecf\u9a8c\u5c06\u77e5\u8bc6\u4e0d\u65ad\u63d0\u70bc\uff0c\u771f\u6b63\u8ba9\u6367\u8d77\u4e66\u7684\u8bfb\u8005\u770b\u5b8c\u6709\u6536\u83b7\u624d\u53ef\u4ee5\u3002<\/p>\n

\u5176\u6b21\u662f\u9e1f\u54e5\u7684linux\u79c1\u623f\u83dc\u7684\u4e66\u7c4d\u66f4\u65b0\u5468\u671f\u8fc7\u957f\uff0c2014\u5e74\u672b\u65f6RHEL7\u4e0eCentos7\u5c31\u5df2\u7ecf\u516c\u5e03\uff0c\u7ecf\u8fc7\u4e86\u4e00\u5e74\u591a\u7684\u8fed\u4ee3\uff0c\u5df2\u7ecf\u5f88\u7a33\u5b9a\u5e76\u88ab\u5e7f\u6cdb\u4f7f\u7528\u4e86\uff0c\u5982\u679c\u5185\u5bb9\u6ca1\u6709\u5b9a\u671f\u66f4\u65b0\uff0c\u4f7f\u5f97\u6280\u672f\u8131\u79bb\u4e86\u751f\u4ea7\u73af\u5883\uff0c\u8fd8\u600e\u4e48\u79f0\u4f5c\u662f\u771f\u6b63\u5b9e\u7528\u7684linux\u6280\u672f\uff1f\u800c\u4e14\u9e1f\u54e5\u7684linux\u79c1\u623f\u83dc\u7f3a\u5c11\u4e86\u5bf9\u65b0\u624b\u975e\u5e38\u91cd\u8981\u7684\u7b54\u7591\u4e0e\u5e2e\u52a9\uff0c\u5982\u679c\u9047\u5230\u4e86\u5b9e\u9a8c\u51fa\u9519\uff0c\u6216\u8005\u6709\u77e5\u8bc6\u70b9\u609f\u4e0d\u900f\uff0c\u8fd9\u4e9b\u90fd\u53ef\u80fd\u8ba9\u521d\u5b66\u8005\u4e27\u5931\u6389\u5bf9linux\u6280\u672f\u7684\u5174\u8da3\u3002<\/p>\n

RHEL\u4e0eCentos\u7cfb\u7edf\u533a\u522b\uff1a<\/h2>\n

\u73b0\u5728\u56fd\u5185\u7684\u5f88\u591a\u4e66\u7c4d\u662f\u4ee5Centos\u7cfb\u7edf\u4e3a\u5e73\u53f0\u7f16\u5199\u7684\uff0c\u5f53\u7136\u4f5c\u8005\u5927\u591a\u4f1a\u5217\u51fa\u6765\u8bf8\u591a\u7684\u7406\u7531\uff0c\u4f46\u5f88\u591a\u90fd\u662f\u4ee5\u8bb9\u4f20\u8bb9\u7684\u6b6a\u66f2\u9053\u7406\uff0c\u6839\u672c\u6ca1\u6709\u5256\u6790\u5230RedHat\u516c\u53f8\u7684\u8fd0\u4f5c\u65b9\u6cd5\u548cCentos\u7cfb\u7edf\u7684\u672c\u8d28\uff0cCentos\u7cfb\u7edf\u662f\u901a\u8fc7\u5c06RHEL\u7cfb\u7edf\u91ca\u653e\u51fa\u7684\u6e90\u4ee3\u7801\u4e8c\u6b21\u7f16\u8bd1\u7684Linux\u7cfb\u7edf\u4e4b\u4e00\uff0c\u547d\u4ee4\u64cd\u4f5c\u548c\u670d\u52a1\u914d\u7f6e\u65b9\u6cd5\u81ea\u7136\u90fd\u662f\u5b8c\u5168\u76f8\u540c\uff0c\u53bb\u6389\u4e86\u5f88\u591a\u7ea2\u5e3d\u6536\u8d39\u7684\u670d\u52a1\u5957\u4ef6\u529f\u80fd\uff0c\u5e76\u4e14\u4e0d\u63d0\u4f9b\u4efb\u4f55\u5f62\u5f0f\u7684\u6280\u672f\u652f\u6301\uff0c\u90a3\u4e48\u9009\u62e9\u7684\u7406\u7531\u53ea\u6709\u4e00\u4e2a\u2014\u2014\u514d\u8d39\uff01\uff0c\u5f53\u201c\u9ad8\u624b\u4eec\u201d\u5927\u4e3e\u514d\u8d39\u3001\u5f00\u6e90\u3001\u6b63\u4e49\u7684\u65d7\u5e1c\u6765\u5ba3\u626cCentos\u7cfb\u7edf\u7684\u65f6\u5019\uff0c\u8bf8\u4e0d\u77e5Centos\u7cfb\u7edf\u5176\u5b9e\u65e9\u57282014\u5e74\u521d\u5c31\u5df2\u7ecf\u88ab\u7ea2\u5e3d\u516c\u53f8\u6536\u8d2d\uff0c\u53ea\u662f\u6218\u7565\u6027\u7684\u514d\u8d39\u800c\u5df2\uff0c\u800c\u6839\u636eGnu GPL\u8bb8\u53ef\u534f\u8bae\uff0c\u6211\u4eec\u540c\u6837\u4e5f\u53ef\u4ee5\u514d\u8d39\u4f7f\u7528RHEL\u7cfb\u7edf\uff0c\u751a\u81f3\u662f\u4fee\u6539\u4ee3\u7801\u540e\u521b\u5efa\u51fa\u884d\u751f\u4ea7\u54c1\uff0c\u81ea\u7531\u7a0b\u5ea6\u662f\u6ca1\u6709\u4efb\u4f55\u7684\u5dee\u5f02\uff0c\u66f4\u65e0\u5173\u9053\u5fb7\u95ee\u9898\u3002<\/p>\n

\u60a8\u6b63\u5728\u9605\u8bfb\u7684\u8fd9\u672c\u300aLinux\u5c31\u8be5\u8fd9\u4e48\u5b66\u300b\u4fbf\u662f\u57fa\u4e8e\u6700\u65b0\u7684RHEL7\u7cfb\u7edf\u7f16\u5199\u7684\uff0c\u77e5\u8bc6\u53ca\u5b9e\u9a8c\u5b8c\u5168\u7684\u76f8\u901a\u4e8eCentos,fedora\u7b49\u7cfb\u7edf\uff0c\u56e0\u6b64\u5f53\u60a8\u5b66\u4e60\u5b8c\u672c\u5957\u8bfe\u7a0b\u540e\uff0c\u5373\u4fbf\u516c\u53f8\u5185\u7684\u751f\u4ea7\u73af\u5883\u662fCentos\u7cfb\u7edf\u4e5f\u4e00\u6837\u6ca1\u6709\u4efb\u4f55\u95ee\u9898\uff0c\u5e76\u4e14\u672c\u4e66\u914d\u5957\u8d44\u6599\u4e2d\u7684iso\u955c\u50cf\u4e0e\u7ea2\u5e3dRHCSA\u53caRHCE\u8003\u8bd5\u7cfb\u7edf\u4e00\u81f4\uff0c\u5c24\u5176\u9002\u5408\u51c6\u5907\u8003\u53d6\u7ea2\u5e3d\u8ba4\u8bc1\u7684\u5b66\u5458\u3002<\/p>\n

<\/span><\/p>\n

\u6b63\u6587\u5f00\u59cb\uff1a<\/strong><\/h2>\n

<\/p>\n

\u7b2c7\u7ae0 \u4f7f\u7528RAID\u4e0eLVM\u78c1\u76d8\u9635\u5217\u6280\u672f<\/p>\n

7.1 RAID\u78c1\u76d8\u5197\u4f59\u9635\u5217<\/span><\/p>\n

7.1.1  \u90e8\u7f72\u78c1\u76d8\u9635\u5217<\/span><\/p>\n

7.1.2  \u635f\u574f\u78c1\u76d8\u9635\u5217\u53ca\u4fee\u590d<\/span><\/p>\n

7.1.3  \u78c1\u76d8\u9635\u5217+\u5907\u4efd\u76d8<\/span><\/p>\n

7.2 LVM\u903b\u8f91\u5377\u7ba1\u7406\u5668<\/span><\/p>\n

7.2.1 \u90e8\u7f72\u903b\u8f91\u5377<\/span><\/p>\n

7.2.2 \u6269\u5bb9\u903b\u8f91\u5377<\/span><\/p>\n

7.2.3 \u7f29\u5c0f\u903b\u8f91\u5377<\/span><\/p>\n

7.2.4 \u903b\u8f91\u5377\u5feb\u7167<\/span><\/p>\n

7.2.5 \u5220\u9664\u903b\u8f91\u5377<\/span><\/p>\n


<\/strong><\/span><\/h5>\n
7.1 RAID\u78c1\u76d8\u5197\u4f59\u9635\u5217<\/strong><\/span><\/h5>\n

\u8fd1\u5e74\u6765\uff0c CPU\u7684\u5904\u7406\u6027\u80fd\u4fdd\u6301\u7740\u9ad8\u901f\u589e\u957f\uff0cIntel\u516c\u53f8\u57282017\u5e74\u6700\u65b0\u53d1\u5e03\u7684i9-7980XE\u5904\u7406\u5668\u82af\u7247\u66f4\u662f\u8fbe\u5230\u4e8618\u6838\u5fc336\u7ebf\u7a0b\u3002\u4f46\u4e0e\u6b64\u540c\u65f6\uff0c\u786c\u76d8\u8bbe\u5907\u7684\u6027\u80fd\u63d0\u5347\u5374\u4e0d\u662f\u5f88\u5927\uff0c\u56e0\u6b64\u9010\u6e10\u6210\u4e3a\u5f53\u4ee3\u8ba1\u7b97\u673a\u6574\u4f53\u6027\u80fd\u7684\u74f6\u9888\u3002\u800c\u4e14\uff0c\u7531\u4e8e\u786c\u76d8\u8bbe\u5907\u9700\u8981\u8fdb\u884c\u6301\u7eed\u3001\u9891\u7e41\u3001\u5927\u91cf\u7684IO\u64cd\u4f5c\uff0c\u76f8\u8f83\u4e8e\u5176\u4ed6\u8bbe\u5907\uff0c\u5176\u635f\u574f\u51e0\u7387\u4e5f\u5927\u5e45\u589e\u52a0\uff0c\u5bfc\u81f4\u91cd\u8981\u6570\u636e\u4e22\u5931\u7684\u51e0\u7387\u4e5f\u968f\u4e4b\u589e\u52a0\u3002<\/p>\n

1988\u5e74\uff0c\u52a0\u5229\u798f\u5c3c\u4e9a\u5927\u5b66\u4f2f\u514b\u5229\u5206\u6821\u9996\u6b21\u63d0\u51fa\u5e76\u5b9a\u4e49\u4e86RAID\u6280\u672f\u7684\u6982\u5ff5\u3002RAID\u6280\u672f\u901a\u8fc7\u628a\u591a\u4e2a\u786c\u76d8\u8bbe\u5907\u7ec4\u5408\u6210\u4e00\u4e2a\u5bb9\u91cf\u66f4\u5927\u3001\u5b89\u5168\u6027\u66f4\u597d\u7684\u78c1\u76d8\u9635\u5217\uff0c\u5e76\u628a\u6570\u636e\u5207\u5272\u6210\u591a\u4e2a\u533a\u6bb5\u540e\u5206\u522b\u5b58\u653e\u5728\u5404\u4e2a\u4e0d\u540c\u7684\u7269\u7406\u786c\u76d8\u8bbe\u5907\u4e0a\uff0c\u7136\u540e\u5229\u7528\u5206\u6563\u8bfb\u5199\u6280\u672f\u6765\u63d0\u5347\u78c1\u76d8\u9635\u5217\u6574\u4f53\u7684\u6027\u80fd\uff0c\u540c\u65f6\u628a\u591a\u4e2a\u91cd\u8981\u6570\u636e\u7684\u526f\u672c\u540c\u6b65\u5230\u4e0d\u540c\u7684\u7269\u7406\u786c\u76d8\u8bbe\u5907\u4e0a\uff0c\u4ece\u800c\u8d77\u5230\u4e86\u975e\u5e38\u597d\u7684\u6570\u636e\u5197\u4f59\u5907\u4efd\u6548\u679c\u3002<\/p>\n

\u4efb\u4f55\u4e8b\u7269\u90fd\u6709\u5b83\u7684\u4e24\u9762\u6027\u3002RAID\u6280\u672f\u786e\u5b9e\u5177\u6709\u975e\u5e38\u597d\u7684\u6570\u636e\u5197\u4f59\u5907\u4efd\u529f\u80fd\uff0c\u4f46\u662f\u5b83\u4e5f\u76f8\u5e94\u5730\u63d0\u9ad8\u4e86\u6210\u672c\u652f\u51fa\u3002\u5c31\u50cf\u539f\u672c\u6211\u4eec\u53ea\u6709\u4e00\u4e2a\u7535\u8bdd\u672c\uff0c\u4f46\u662f\u4e3a\u4e86\u907f\u514d\u9057\u5931\uff0c\u6211\u4eec\u5c06\u8054\u7cfb\u4eba\u53f7\u7801\u4fe1\u606f\u5199\u6210\u4e86\u4e24\u4efd\uff0c\u81ea\u7136\u8981\u4e3a\u6b64\u591a\u4e70\u4e00\u4e2a\u7535\u8bdd\u672c\uff0c\u8fd9\u4e5f\u5c31\u76f8\u5e94\u5730\u63d0\u5347\u4e86\u6210\u672c\u652f\u51fa\u3002RAID\u6280\u672f\u7684\u8bbe\u8ba1\u521d\u8877\u662f\u51cf\u5c11\u56e0\u4e3a\u91c7\u8d2d\u786c\u76d8\u8bbe\u5907\u5e26\u6765\u7684\u8d39\u7528\u652f\u51fa\uff0c\u4f46\u662f\u4e0e\u6570\u636e\u672c\u8eab\u7684\u4ef7\u503c\u76f8\u6bd4\u8f83\uff0c\u73b0\u4ee3\u4f01\u4e1a\u66f4\u770b\u91cd\u7684\u5219\u662fRAID\u6280\u672f\u6240\u5177\u5907\u7684\u5197\u4f59\u5907\u4efd\u673a\u5236\u4ee5\u53ca\u5e26\u6765\u7684\u786c\u76d8\u541e\u5410\u91cf\u7684\u63d0\u5347\u3002\u4e5f\u5c31\u662f\u8bf4\uff0cRAID\u4e0d\u4ec5\u964d\u4f4e\u4e86\u786c\u76d8\u8bbe\u5907\u635f\u574f\u540e\u4e22\u5931\u6570\u636e\u7684\u51e0\u7387\uff0c\u8fd8\u63d0\u5347\u4e86\u786c\u76d8\u8bbe\u5907\u7684\u8bfb\u5199\u901f\u5ea6\uff0c\u6240\u4ee5\u5b83\u5728\u7edd\u5927\u591a\u6570\u8fd0\u8425\u5546\u6216\u5927\u4e2d\u578b\u4f01\u4e1a\u4e2d\u5f97\u4ee5\u5e7f\u6cdb\u90e8\u7f72\u548c\u5e94\u7528\u3002<\/p>\n

\u51fa\u4e8e\u6210\u672c\u548c\u6280\u672f\u65b9\u9762\u7684\u8003\u8651\uff0c\u9700\u8981\u9488\u5bf9\u4e0d\u540c\u7684\u9700\u6c42\u5728\u6570\u636e\u53ef\u9760\u6027\u53ca\u8bfb\u5199\u6027\u80fd\u4e0a\u4f5c\u51fa\u6743\u8861\uff0c\u5236\u5b9a\u51fa\u6ee1\u8db3\u5404\u81ea\u9700\u6c42\u7684\u4e0d\u540c\u65b9\u6848\u3002\u76ee\u524d\u5df2\u6709\u7684RAID\u78c1\u76d8\u9635\u5217\u7684\u65b9\u6848\u81f3\u5c11\u6709\u5341\u51e0\u79cd\uff0c\u800c\u5218\u9044<\/a>\u8001\u5e08\u63a5\u4e0b\u6765\u4f1a\u8be6\u7ec6\u8bb2\u89e3RAID 0\u3001RAID 1\u3001RAID 5\u4e0eRAID 10\u8fd94\u79cd\u6700\u5e38\u89c1\u7684\u65b9\u6848\u3002<\/p>\n

1. RAID 0<\/strong><\/span><\/p>\n

RAID 0\u6280\u672f\u628a\u591a\u5757\u7269\u7406\u786c\u76d8\u8bbe\u5907\uff08\u81f3\u5c11\u4e24\u5757\uff09\u901a\u8fc7\u786c\u4ef6\u6216\u8f6f\u4ef6\u7684\u65b9\u5f0f\u4e32\u8054\u5728\u4e00\u8d77\uff0c\u7ec4\u6210\u4e00\u4e2a\u5927\u7684\u5377\u7ec4\uff0c\u5e76\u5c06\u6570\u636e\u4f9d\u6b21\u5199\u5165\u5230\u5404\u4e2a\u7269\u7406\u786c\u76d8\u4e2d\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u5728\u6700\u7406\u60f3\u7684\u72b6\u6001\u4e0b\uff0c\u786c\u76d8\u8bbe\u5907\u7684\u8bfb\u5199\u6027\u80fd\u4f1a\u63d0\u5347\u6570\u500d\uff0c\u4f46\u662f\u82e5\u4efb\u610f\u4e00\u5757\u786c\u76d8\u53d1\u751f\u6545\u969c\u5c06\u5bfc\u81f4\u6574\u4e2a\u7cfb\u7edf\u7684\u6570\u636e\u90fd\u53d7\u5230\u7834\u574f\u3002\u901a\u4fd7\u6765\u8bf4\uff0cRAID 0\u6280\u672f\u80fd\u591f\u6709\u6548\u5730\u63d0\u5347\u786c\u76d8\u6570\u636e\u7684\u541e\u5410\u901f\u5ea6\uff0c\u4f46\u662f\u4e0d\u5177\u5907\u6570\u636e\u5907\u4efd\u548c\u9519\u8bef\u4fee\u590d\u80fd\u529b\u3002\u5982\u56fe7-1\u6240\u793a\uff0c\u6570\u636e\u88ab\u5206\u522b\u5199\u5165\u5230\u4e0d\u540c\u7684\u786c\u76d8\u8bbe\u5907\u4e2d\uff0c\u5373disk1\u548cdisk2\u786c\u76d8\u8bbe\u5907\u4f1a\u5206\u522b\u4fdd\u5b58\u6570\u636e\u8d44\u6599\uff0c\u6700\u7ec8\u5b9e\u73b0\u63d0\u5347\u8bfb\u53d6\u3001\u5199\u5165\u901f\u5ea6\u7684\u6548\u679c\u3002<\/p>\n

\"\u7b2c7\u7ae0<\/div><\/div>\n

\u56fe7-1  RAID 0\u6280\u672f\u793a\u610f\u56fe<\/p>\n

2. RAID 1<\/strong><\/span><\/p>\n

\u5c3d\u7ba1RAID 0\u6280\u672f\u63d0\u5347\u4e86\u786c\u76d8\u8bbe\u5907\u7684\u8bfb\u5199\u901f\u5ea6\uff0c\u4f46\u662f\u5b83\u662f\u5c06\u6570\u636e\u4f9d\u6b21\u5199\u5165\u5230\u5404\u4e2a\u7269\u7406\u786c\u76d8\u4e2d\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b83\u7684\u6570\u636e\u662f\u5206\u5f00\u5b58\u653e\u7684\uff0c\u5176\u4e2d\u4efb\u4f55\u4e00\u5757\u786c\u76d8\u53d1\u751f\u6545\u969c\u90fd\u4f1a\u635f\u574f\u6574\u4e2a\u7cfb\u7edf\u7684\u6570\u636e\u3002\u56e0\u6b64\uff0c\u5982\u679c\u751f\u4ea7\u73af\u5883\u5bf9\u786c\u76d8\u8bbe\u5907\u7684\u8bfb\u5199\u901f\u5ea6\u6ca1\u6709\u8981\u6c42\uff0c\u800c\u662f\u5e0c\u671b\u589e\u52a0\u6570\u636e\u7684\u5b89\u5168\u6027\u65f6\uff0c\u5c31\u9700\u8981\u7528\u5230RAID 1\u6280\u672f\u4e86\u3002<\/p>\n

\u5728\u56fe7-2\u6240\u793a\u7684RAID 1\u6280\u672f\u793a\u610f\u56fe\u4e2d\u53ef\u4ee5\u770b\u5230\uff0c\u5b83\u662f\u628a\u4e24\u5757\u4ee5\u4e0a\u7684\u786c\u76d8\u8bbe\u5907\u8fdb\u884c\u7ed1\u5b9a\uff0c\u5728\u5199\u5165\u6570\u636e\u65f6\uff0c\u662f\u5c06\u6570\u636e\u540c\u65f6\u5199\u5165\u5230\u591a\u5757\u786c\u76d8\u8bbe\u5907\u4e0a\uff08\u53ef\u4ee5\u5c06\u5176\u89c6\u4e3a\u6570\u636e\u7684\u955c\u50cf\u6216\u5907\u4efd\uff09\u3002\u5f53\u5176\u4e2d\u67d0\u4e00\u5757\u786c\u76d8\u53d1\u751f\u6545\u969c\u540e\uff0c\u4e00\u822c\u4f1a\u7acb\u5373\u81ea\u52a8\u4ee5\u70ed\u4ea4\u6362\u7684\u65b9\u5f0f\u6765\u6062\u590d\u6570\u636e\u7684\u6b63\u5e38\u4f7f\u7528\u3002<\/p>\n

\"\u7b2c7\u7ae0<\/div><\/div>\n

\u56fe7-2  RAID 1\u6280\u672f\u793a\u610f\u56fe<\/p>\n

RAID 1\u6280\u672f\u867d\u7136\u5341\u5206\u6ce8\u91cd\u6570\u636e\u7684\u5b89\u5168\u6027\uff0c\u4f46\u662f\u56e0\u4e3a\u662f\u5728\u591a\u5757\u786c\u76d8\u8bbe\u5907\u4e2d\u5199\u5165\u4e86\u76f8\u540c\u7684\u6570\u636e\uff0c\u56e0\u6b64\u786c\u76d8\u8bbe\u5907\u7684\u5229\u7528\u7387\u5f97\u4ee5\u4e0b\u964d\uff0c\u4ece\u7406\u8bba\u4e0a\u6765\u8bf4\uff0c\u56fe7-2\u6240\u793a\u7684\u786c\u76d8\u7a7a\u95f4\u7684\u771f\u5b9e\u53ef\u7528\u7387\u53ea\u670950%\uff0c\u7531\u4e09\u5757\u786c\u76d8\u8bbe\u5907\u7ec4\u6210\u7684RAID 1\u78c1\u76d8\u9635\u5217\u7684\u53ef\u7528\u7387\u53ea\u670933%\u5de6\u53f3\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002\u800c\u4e14\uff0c\u7531\u4e8e\u9700\u8981\u628a\u6570\u636e\u540c\u65f6\u5199\u5165\u5230\u4e24\u5757\u4ee5\u4e0a\u7684\u786c\u76d8\u8bbe\u5907\uff0c\u8fd9\u65e0\u7591\u4e5f\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u589e\u5927\u4e86\u7cfb\u7edf\u8ba1\u7b97\u529f\u80fd\u7684\u8d1f\u8f7d\u3002<\/p>\n

\u90a3\u4e48\uff0c\u6709\u6ca1\u6709\u4e00\u79cdRAID\u65b9\u6848\u65e2\u8003\u8651\u5230\u4e86\u786c\u76d8\u8bbe\u5907\u7684\u8bfb\u5199\u901f\u5ea6\u548c\u6570\u636e\u5b89\u5168\u6027\uff0c\u8fd8\u517c\u987e\u4e86\u6210\u672c\u95ee\u9898\u5462\uff1f\u5b9e\u9645\u4e0a\uff0c\u5355\u4ece\u6570\u636e\u5b89\u5168\u548c\u6210\u672c\u95ee\u9898\u4e0a\u6765\u8bb2\uff0c\u5c31\u4e0d\u53ef\u80fd\u5728\u4fdd\u6301\u539f\u6709\u786c\u76d8\u8bbe\u5907\u7684\u5229\u7528\u7387\u4e14\u8fd8\u4e0d\u589e\u52a0\u65b0\u8bbe\u5907\u7684\u60c5\u51b5\u4e0b\uff0c\u80fd\u5927\u5e45\u63d0\u5347\u6570\u636e\u7684\u5b89\u5168\u6027\u3002\u5218\u9044<\/a>\u8001\u5e08\u4e5f\u6ca1\u6709\u5fc5\u8981\u5ffd\u60a0\u5404\u4f4d\u8bfb\u8005\uff0c\u4e0b\u9762\u5c06\u8981\u8bb2\u89e3\u7684RAID 5\u6280\u672f\u867d\u7136\u5728\u7406\u8bba\u4e0a\u517c\u987e\u4e86\u4e09\u8005\uff08\u8bfb\u5199\u901f\u5ea6\u3001\u6570\u636e\u5b89\u5168\u6027\u3001\u6210\u672c\uff09\uff0c\u4f46\u5b9e\u9645\u4e0a\u66f4\u50cf\u662f\u5bf9\u8fd9\u4e09\u8005\u7684\u201c\u76f8\u4e92\u59a5\u534f\u201d\u3002<\/p>\n

3. RAID 5<\/span><\/strong><\/p>\n

\u5982\u56fe7-3\u6240\u793a\uff0cRAID5\u6280\u672f\u662f\u628a\u786c\u76d8\u8bbe\u5907\u7684\u6570\u636e\u5947\u5076\u6821\u9a8c\u4fe1\u606f\u4fdd\u5b58\u5230\u5176\u4ed6\u786c\u76d8\u8bbe\u5907\u4e2d\u3002RAID 5\u78c1\u76d8\u9635\u5217\u7ec4\u4e2d\u6570\u636e\u7684\u5947\u5076\u6821\u9a8c\u4fe1\u606f\u5e76\u4e0d\u662f\u5355\u72ec\u4fdd\u5b58\u5230\u67d0\u4e00\u5757\u786c\u76d8\u8bbe\u5907\u4e2d\uff0c\u800c\u662f\u5b58\u50a8\u5230\u9664\u81ea\u8eab\u4ee5\u5916\u7684\u5176\u4ed6\u6bcf\u4e00\u5757\u786c\u76d8\u8bbe\u5907\u4e0a\uff0c\u8fd9\u6837\u7684\u597d\u5904\u662f\u5176\u4e2d\u4efb\u4f55\u4e00\u8bbe\u5907\u635f\u574f\u540e\u4e0d\u81f3\u4e8e\u51fa\u73b0\u81f4\u547d\u7f3a\u9677\uff1b\u56fe7-3\u4e2dparity\u90e8\u5206\u5b58\u653e\u7684\u5c31\u662f\u6570\u636e\u7684\u5947\u5076\u6821\u9a8c\u4fe1\u606f\uff0c\u6362\u53e5\u8bdd\u8bf4\uff0c\u5c31\u662fRAID 5\u6280\u672f\u5b9e\u9645\u4e0a\u6ca1\u6709\u5907\u4efd\u786c\u76d8\u4e2d\u7684\u771f\u5b9e\u6570\u636e\u4fe1\u606f\uff0c\u800c\u662f\u5f53\u786c\u76d8\u8bbe\u5907\u51fa\u73b0\u95ee\u9898\u540e\u901a\u8fc7\u5947\u5076\u6821\u9a8c\u4fe1\u606f\u6765\u5c1d\u8bd5\u91cd\u5efa\u635f\u574f\u7684\u6570\u636e\u3002RAID\u8fd9\u6837\u7684\u6280\u672f\u7279\u6027\u201c\u59a5\u534f\u201d\u5730\u517c\u987e\u4e86\u786c\u76d8\u8bbe\u5907\u7684\u8bfb\u5199\u901f\u5ea6\u3001\u6570\u636e\u5b89\u5168\u6027\u4e0e\u5b58\u50a8\u6210\u672c\u95ee\u9898\u3002<\/p>\n

\"\u7b2c7\u7ae0<\/div><\/div>\n

\u56fe7-3  RAID5\u6280\u672f\u793a\u610f\u56fe<\/p>\n

4.  RAID 10<\/strong><\/span><\/p>\n

\u9274\u4e8eRAID 5\u6280\u672f\u662f\u56e0\u4e3a\u786c\u76d8\u8bbe\u5907\u7684\u6210\u672c\u95ee\u9898\u5bf9\u8bfb\u5199\u901f\u5ea6\u548c\u6570\u636e\u7684\u5b89\u5168\u6027\u80fd\u800c\u6709\u4e86\u4e00\u5b9a\u7684\u59a5\u534f\uff0c\u4f46\u662f\u5927\u90e8\u5206\u4f01\u4e1a\u66f4\u5728\u4e4e\u7684\u662f\u6570\u636e\u672c\u8eab\u7684\u4ef7\u503c\u800c\u975e\u786c\u76d8\u4ef7\u683c\uff0c\u56e0\u6b64\u751f\u4ea7\u73af\u5883\u4e2d\u4e3b\u8981\u4f7f\u7528RAID 10\u6280\u672f\u3002<\/p>\n

\u987e\u540d\u601d\u4e49\uff0cRAID 10\u6280\u672f\u662fRAID 1+RAID 0\u6280\u672f\u7684\u4e00\u4e2a\u201c\u7ec4\u5408\u4f53\u201d\u3002\u5982\u56fe7-4\u6240\u793a\uff0cRAID 10\u6280\u672f\u9700\u8981\u81f3\u5c114\u5757\u786c\u76d8\u6765\u7ec4\u5efa\uff0c\u5176\u4e2d\u5148\u5206\u522b\u4e24\u4e24\u5236\u4f5c\u6210RAID 1\u78c1\u76d8\u9635\u5217\uff0c\u4ee5\u4fdd\u8bc1\u6570\u636e\u7684\u5b89\u5168\u6027\uff1b\u7136\u540e\u518d\u5bf9\u4e24\u4e2aRAID 1\u78c1\u76d8\u9635\u5217\u5b9e\u65bdRAID 0\u6280\u672f\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u786c\u76d8\u8bbe\u5907\u7684\u8bfb\u5199\u901f\u5ea6\u3002\u8fd9\u6837\u4ece\u7406\u8bba\u4e0a\u6765\u8bb2\uff0c\u53ea\u8981\u574f\u7684\u4e0d\u662f\u540c\u4e00\u7ec4\u4e2d\u7684\u6240\u6709\u786c\u76d8\uff0c\u90a3\u4e48\u6700\u591a\u53ef\u4ee5\u635f\u574f50%\u7684\u786c\u76d8\u8bbe\u5907\u800c\u4e0d\u4e22\u5931\u6570\u636e\u3002\u7531\u4e8eRAID 10\u6280\u672f\u7ee7\u627f\u4e86RAID 0\u7684\u9ad8\u8bfb\u5199\u901f\u5ea6\u548cRAID 1\u7684\u6570\u636e\u5b89\u5168\u6027\uff0c\u5728\u4e0d\u8003\u8651\u6210\u672c\u7684\u60c5\u51b5\u4e0bRAID 10\u7684\u6027\u80fd\u90fd\u8d85\u8fc7\u4e86RAID 5\uff0c\u56e0\u6b64\u5f53\u524d\u6210\u4e3a\u5e7f\u6cdb\u4f7f\u7528\u7684\u4e00\u79cd\u5b58\u50a8\u6280\u672f\u3002<\/p>\n

\"\u7b2c7\u7ae0<\/div><\/div>\n

\u56fe7-4  RAID 10\u6280\u672f\u793a\u610f\u56fe<\/p>\n

7.1.1  \u90e8\u7f72\u78c1\u76d8\u9635\u5217<\/strong><\/span><\/h6>\n

\u5728\u5177\u5907\u4e86\u4e0a\u4e00\u7ae0\u7684\u786c\u76d8\u8bbe\u5907\u7ba1\u7406\u57fa\u7840\u4e4b\u540e\uff0c\u518d\u6765\u90e8\u7f72RAID\u548cLVM\u5c31\u53d8\u5f97\u5341\u5206\u8f7b\u677e\u4e86\u3002\u9996\u5148\uff0c\u9700\u8981\u5728\u865a\u62df\u673a\u4e2d\u6dfb\u52a04\u5757\u786c\u76d8\u8bbe\u5907\u6765\u5236\u4f5c\u4e00\u4e2aRAID 10\u78c1\u76d8\u9635\u5217\uff0c\u5982\u56fe7-5\u6240\u793a\u3002<\/p>\n

\"\u7b2c7\u7ae0<\/div><\/div>\n

\u56fe7-5  \u4e3a\u865a\u62df\u673a\u7cfb\u7edf\u6a21\u62df\u6dfb\u52a04\u5757\u786c\u76d8\u8bbe\u5907<\/p>\n

\u8fd9\u51e0\u5757\u786c\u76d8\u8bbe\u5907\u662f\u6a21\u62df\u51fa\u6765\u7684\uff0c\u4e0d\u9700\u8981\u7279\u610f\u53bb\u4e70\u51e0\u5757\u771f\u5b9e\u7684\u7269\u7406\u786c\u76d8\u63d2\u5230\u7535\u8111\u4e0a\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e00\u5b9a\u8981\u8bb0\u5f97\u5728\u5173\u95ed\u7cfb\u7edf\u4e4b\u540e\uff0c\u518d\u5728\u865a\u62df\u673a\u4e2d\u6dfb\u52a0\u786c\u76d8\u8bbe\u5907\uff0c\u5426\u5219\u53ef\u80fd\u4f1a\u56e0\u4e3a\u8ba1\u7b97\u673a\u67b6\u6784\u7684\u4e0d\u540c\u800c\u5bfc\u81f4\u865a\u62df\u673a\u7cfb\u7edf\u65e0\u6cd5\u8bc6\u522b\u6dfb\u52a0\u7684\u786c\u76d8\u8bbe\u5907\u3002<\/p>\n

mdadm\u547d\u4ee4\u7528\u4e8e\u7ba1\u7406Linux\u7cfb\u7edf<\/a>\u4e2d\u7684\u8f6f\u4ef6RAID\u786c\u76d8\u9635\u5217\uff0c\u683c\u5f0f\u4e3a\u201cmdadm [\u6a21\u5f0f] <RAID\u8bbe\u5907\u540d\u79f0> [\u9009\u9879] [\u6210\u5458\u8bbe\u5907\u540d\u79f0]\u201d\u3002<\/p>\n

\u5f53\u524d\uff0c\u751f\u4ea7\u73af\u5883\u4e2d\u7528\u5230\u7684\u670d\u52a1\u5668\u4e00\u822c\u90fd\u914d\u5907RAID\u9635\u5217\u5361\uff0c\u5c3d\u7ba1\u670d\u52a1\u5668\u7684\u4ef7\u683c\u8d8a\u6765\u8d8a\u4fbf\u5b9c\uff0c\u4f46\u662f\u6211\u4eec\u6ca1\u6709\u5fc5\u8981\u4e3a\u4e86\u505a\u4e00\u4e2a\u5b9e\u9a8c\u800c\u53bb\u5355\u72ec\u8d2d\u4e70\u4e00\u53f0\u670d\u52a1\u5668\uff0c\u800c\u662f\u53ef\u4ee5\u5b66\u4f1a\u7528mdadm\u547d\u4ee4\u5728Linux\u7cfb\u7edf\u4e2d\u521b\u5efa\u548c\u7ba1\u7406\u8f6f\u4ef6RAID\u78c1\u76d8\u9635\u5217\uff0c\u800c\u4e14\u5b83\u6d89\u53ca\u7684\u7406\u8bba\u77e5\u8bc6\u7684\u64cd\u4f5c\u8fc7\u7a0b\u4e0e\u751f\u4ea7\u73af\u5883\u4e2d\u7684\u5b8c\u5168\u4e00\u81f4\u3002mdadm\u547d\u4ee4\u7684\u5e38\u7528\u53c2\u6570\u4ee5\u53ca\u4f5c\u7528\u5982\u88687-1\u6240\u793a\u3002<\/p>\n

\u88687-1                                            mdadm\u547d\u4ee4\u7684\u5e38\u7528\u53c2\u6570\u548c\u4f5c\u7528<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u53c2\u6570<\/td>\n\u4f5c\u7528<\/td>\n<\/tr>\n
-a<\/td>\n\u68c0\u6d4b\u8bbe\u5907\u540d\u79f0<\/td>\n<\/tr>\n
-n<\/td>\n\u6307\u5b9a\u8bbe\u5907\u6570\u91cf<\/td>\n<\/tr>\n
-l<\/td>\n\u6307\u5b9aRAID\u7ea7\u522b<\/td>\n<\/tr>\n
-C<\/td>\n\u521b\u5efa<\/td>\n<\/tr>\n
-v<\/td>\n\u663e\u793a\u8fc7\u7a0b<\/td>\n<\/tr>\n
-f<\/td>\n\u6a21\u62df\u8bbe\u5907\u635f\u574f<\/td>\n<\/tr>\n
-r<\/td>\n\u79fb\u9664\u8bbe\u5907<\/td>\n<\/tr>\n
-Q<\/td>\n\u67e5\u770b\u6458\u8981\u4fe1\u606f<\/td>\n<\/tr>\n
-D<\/td>\n\u67e5\u770b\u8be6\u7ec6\u4fe1\u606f<\/td>\n<\/tr>\n
-S<\/td>\n\u505c\u6b62RAID\u78c1\u76d8\u9635\u5217<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/p>\n<\/div>\n

\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528mdadm\u547d\u4ee4\u521b\u5efaRAID 10\uff0c\u540d\u79f0\u4e3a\u201c\/dev\/md0\u201d\u3002<\/p>\n

\u7b2c6\u7ae0\u4e2d\u8bb2\u5230\uff0cudev\u662fLinux\u7cfb\u7edf\u5185\u6838\u4e2d\u7528\u6765\u7ed9\u786c\u4ef6\u547d\u540d\u7684\u670d\u52a1\uff0c\u5176\u547d\u540d\u89c4\u5219\u4e5f\u975e\u5e38\u7b80\u5355\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u547d\u540d\u89c4\u5219\u731c\u6d4b\u5230\u7b2c\u4e8c\u4e2aSCSI\u5b58\u50a8\u8bbe\u5907\u7684\u540d\u79f0\u4f1a\u662f\/dev\/sdb\uff0c\u7136\u540e\u4f9d\u6b64\u7c7b\u63a8\u3002\u4f7f\u7528\u786c\u76d8\u8bbe\u5907\u6765\u90e8\u7f72RAID\u78c1\u76d8\u9635\u5217\u5f88\u50cf\u662f\u5c06\u51e0\u4f4d\u540c\u5b66\u7ec4\u6210\u4e00\u4e2a\u73ed\u7ea7\uff0c\u4f46\u603b\u4e0d\u80fd\u5c06\u73ed\u7ea7\u547d\u540d\u4e3a\/dev\/sdbcde\u5427\u3002\u5c3d\u7ba1\u8fd9\u6837\u53ef\u4ee5\u4e00\u773c\u770b\u51fa\u5b83\u662f\u7531\u54ea\u4e9b\u5143\u7d20\u7ec4\u6210\u7684\uff0c\u4f46\u662f\u5e76\u4e0d\u5229\u4e8e\u6211\u4eec\u7684\u8bb0\u5fc6\u548c\u9605\u8bfb\u3002\u66f4\u4f55\u51b5\u5982\u679c\u6211\u4eec\u662f\u4f7f\u752810\u300150\u3001100\u4e2a\u786c\u76d8\u6765\u90e8\u7f72RAID\u78c1\u76d8\u9635\u5217\u5462\uff1f<\/p>\n

\u6b64\u65f6\uff0c\u5c31\u9700\u8981\u4f7f\u7528mdadm\u4e2d\u7684\u53c2\u6570\u4e86\u3002\u5176\u4e2d\uff0c-C\u53c2\u6570\u4ee3\u8868\u521b\u5efa\u4e00\u4e2aRAID\u9635\u5217\u5361\uff1b-v\u53c2\u6570\u663e\u793a\u521b\u5efa\u7684\u8fc7\u7a0b\uff0c\u540c\u65f6\u5728\u540e\u9762\u8ffd\u52a0\u4e00\u4e2a\u8bbe\u5907\u540d\u79f0\/dev\/md0\uff0c\u8fd9\u6837\/dev\/md0\u5c31\u662f\u521b\u5efa\u540e\u7684RAID\u78c1\u76d8\u9635\u5217\u7684\u540d\u79f0\uff1b-a yes\u53c2\u6570\u4ee3\u8868\u81ea\u52a8\u521b\u5efa\u8bbe\u5907\u6587\u4ef6\uff1b-n 4\u53c2\u6570\u4ee3\u8868\u4f7f\u75284\u5757\u786c\u76d8\u6765\u90e8\u7f72\u8fd9\u4e2aRAID\u78c1\u76d8\u9635\u5217\uff1b\u800c-l 10\u53c2\u6570\u5219\u4ee3\u8868RAID 10\u65b9\u6848\uff1b\u6700\u540e\u518d\u52a0\u4e0a4\u5757\u786c\u76d8\u8bbe\u5907\u7684\u540d\u79f0\u5c31\u641e\u5b9a\u4e86\u3002<\/p>\n

[root@linuxprobe ~]# mdadm -Cv \/dev\/md0 -a yes -n 4 -l 10 \/dev\/sdb \/dev\/sdc \/dev\/sdd \/dev\/sde\r\nmdadm: layout defaults to n2\r\nmdadm: layout defaults to n2\r\nmdadm: chunk size defaults to 512K\r\nmdadm: size set to 20954624K\r\nmdadm: Defaulting to version 1.2 metadata\r\nmdadm: array \/dev\/md0 started.<\/pre>\n
\u5176\u6b21\uff0c\u628a\u5236\u4f5c\u597d\u7684RAID\u78c1\u76d8\u9635\u5217\u683c\u5f0f\u5316\u4e3aext4\u683c\u5f0f\u3002<\/p>\n
[root@linuxprobe ~]# mkfs.ext4 \/dev\/md0\r\nmke2fs 1.42.9 (28-Dec-2013)\r\nFilesystem label=\r\nOS type: Linux\r\nBlock size=4096 (log=2)\r\nFragment size=4096 (log=2)\r\nStride=128 blocks, Stripe width=256 blocks\r\n2621440 inodes, 10477312 blocks\r\n523865 blocks (5.00%) reserved for the super user\r\nFirst data block=0\r\nMaximum filesystem blocks=2157969408\r\n320 block groups\r\n32768 blocks per group, 32768 fragments per group\r\n8192 inodes per group\r\nSuperblock backups stored on blocks:\r\n32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,\r\n4096000, 7962624\r\nAllocating group tables: done\r\nWriting inode tables: done\r\nCreating journal (32768 blocks): done\r\nWriting superblocks and filesystem accounting information: done<\/pre>\n
\u518d\u6b21\uff0c\u521b\u5efa\u6302\u8f7d\u70b9\u7136\u540e\u628a\u786c\u76d8\u8bbe\u5907\u8fdb\u884c\u6302\u8f7d\u64cd\u4f5c\u3002\u6302\u8f7d\u6210\u529f\u540e\u53ef\u770b\u5230\u53ef\u7528\u7a7a\u95f4\u4e3a40GB\u3002<\/p>\n
[root@linuxprobe ~]# mkdir \/RAID\r\n[root@linuxprobe ~]# mount \/dev\/md0 \/RAID\r\n[root@linuxprobe ~]# df -h\r\nFilesystem Size Used Avail Use% Mounted on\r\n\/dev\/mapper\/rhel-root 18G 3.0G 15G 17% \/\r\ndevtmpfs 905M 0 905M 0% \/dev\r\ntmpfs 914M 84K 914M 1% \/dev\/shm\r\ntmpfs 914M 8.9M 905M 1% \/run\r\ntmpfs 914M 0 914M 0% \/sys\/fs\/cgroup\r\n\/dev\/sr0 3.5G 3.5G 0 100% \/media\/cdrom\r\n\/dev\/sda1 497M 119M 379M 24% \/boot\/dev\/md0 40G 49M 38G 1% \/RAID<\/pre>\n
\u6700\u540e\uff0c\u67e5\u770b\/dev\/md0\u78c1\u76d8\u9635\u5217\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5e76\u628a\u6302\u8f7d\u4fe1\u606f\u5199\u5165\u5230\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u4f7f\u5176\u6c38\u4e45\u751f\u6548\u3002<\/p>\n
[root@linuxprobe ~]# mdadm -D \/dev\/md0\r\n\/dev\/md0:\r\nVersion : 1.2\r\nCreation Time : Tue May 5 07:43:26 2017\r\nRaid Level : raid10\r\nArray Size : 41909248 (39.97 GiB 42.92 GB)\r\nUsed Dev Size : 20954624 (19.98 GiB 21.46 GB)\r\nRaid Devices : 4\r\nTotal Devices : 4\r\nPersistence : Superblock is persistent\r\nUpdate Time : Tue May 5 07:46:59 2017\r\nState : clean\r\nActive Devices : 4\r\nWorking Devices : 4\r\nFailed Devices : 0\r\nSpare Devices : 0\r\nLayout : near=2\r\nChunk Size : 512K\r\nName : localhost.localdomain:0 (local to host localhost.localdomain)\r\nUUID : cc9a87d4:1e89e175:5383e1e8:a78ec62c\r\nEvents : 17\r\nNumber Major Minor RaidDevice State\r\n0 8 16 0 active sync \/dev\/sdb\r\n1 8 32 1 active sync \/dev\/sdc\r\n2 8 48 2 active sync \/dev\/sdd\r\n3 8 64 3 active sync \/dev\/sde\r\n[root@linuxprobe ~]# echo "\/dev\/md0 \/RAID ext4 defaults 0 0" >> \/etc\/fstab<\/pre>\n
7.1.2  \u635f\u574f\u78c1\u76d8\u9635\u5217\u53ca\u4fee\u590d<\/strong><\/span><\/h6>\n
\u4e4b\u6240\u4ee5\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u90e8\u7f72RAID 10\u78c1\u76d8\u9635\u5217\uff0c\u662f\u4e3a\u4e86\u63d0\u9ad8\u786c\u76d8\u5b58\u50a8\u8bbe\u5907\u7684\u8bfb\u5199\u901f\u5ea6\u53ca\u6570\u636e\u7684\u5b89\u5168\u6027\uff0c\u4f46\u7531\u4e8e\u6211\u4eec\u7684\u786c\u76d8\u8bbe\u5907\u662f\u5728\u865a\u62df\u673a\u4e2d\u6a21\u62df\u51fa\u6765\u7684\uff0c\u56e0\u6b64\u5bf9\u8bfb\u5199\u901f\u5ea6\u7684\u6539\u5584\u53ef\u80fd\u5e76\u4e0d\u76f4\u89c2\uff0c\u56e0\u6b64\u5218\u9044<\/a>\u8001\u5e08\u51b3\u5b9a\u7ed9\u5404\u4f4d\u8bfb\u8005\u8bb2\u89e3\u4e00\u4e0bRAID\u78c1\u76d8\u9635\u5217\u635f\u574f\u540e\u7684\u5904\u7406\u65b9\u6cd5\uff0c\u8fd9\u6837\u5927\u5bb6\u5728\u6b65\u5165\u8fd0\u7ef4\u5c97\u4f4d\u540e\u9047\u5230\u7c7b\u4f3c\u95ee\u9898\u65f6\uff0c\u4e5f\u53ef\u4ee5\u8f7b\u677e\u89e3\u51b3\u3002<\/p>\n
\u5728\u786e\u8ba4\u6709\u4e00\u5757\u7269\u7406\u786c\u76d8\u8bbe\u5907\u51fa\u73b0\u635f\u574f\u800c\u4e0d\u80fd\u7ee7\u7eed\u6b63\u5e38\u4f7f\u7528\u540e\uff0c\u5e94\u8be5\u4f7f\u7528mdadm\u547d\u4ee4\u5c06\u5176\u79fb\u9664\uff0c\u7136\u540e\u67e5\u770bRAID\u78c1\u76d8\u9635\u5217\u7684\u72b6\u6001\uff0c\u53ef\u4ee5\u53d1\u73b0\u72b6\u6001\u5df2\u7ecf\u6539\u53d8\u3002<\/p>\n
\u54b1\u4eec\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u90e8\u7f72RAID10\u78c1\u76d8\u9635\u5217\u7ec4\u76ee\u7684\u5c31\u662f\u4e3a\u4e86\u63d0\u9ad8\u5b58\u50a8\u8bbe\u5907\u7684IO\u8bfb\u5199\u901f\u5ea6\u53ca\u6570\u636e\u7684\u5b89\u5168\u6027\uff0c\u4f46\u56e0\u4e3a\u8fd9\u6b21\u662f\u5728\u672c\u673a\u7535\u8111\u4e0a\u6a21\u62df\u51fa\u6765\u7684\u786c\u76d8\u8bbe\u5907\u6240\u4ee5\u5bf9\u4e8e\u8bfb\u5199\u901f\u5ea6\u7684\u6539\u5584\u53ef\u80fd\u5e76\u4e0d\u76f4\u89c2\uff0c\u56e0\u6b64\u5218\u9044\u8001\u5e08\u51b3\u5b9a\u7ed9\u540c\u5b66\u4eec\u8bb2\u89e3\u4e0bRAID\u78c1\u76d8\u9635\u5217\u7ec4\u635f\u574f\u540e\u7684\u5904\u7406\u65b9\u6cd5\uff0c\u8fd9\u6837\u4ee5\u540e\u6b65\u5165\u4e86\u8fd0\u7ef4\u5c97\u4f4d\u540e\u4e0d\u4f1a\u56e0\u4e3a\u7a81\u53d1\u4e8b\u4ef6\u800c\u624b\u5fd9\u811a\u4e71\u3002\u9996\u5148\u786e\u8ba4\u6709\u4e00\u5757\u7269\u7406\u786c\u76d8\u8bbe\u5907\u51fa\u73b0\u635f\u574f\u4e0d\u80fd\u518d\u7ee7\u7eed\u6b63\u5e38\u4f7f\u7528\u540e\uff0c\u5e94\u8be5\u4f7f\u7528mdadm\u547d\u4ee4\u6765\u4e88\u4ee5\u79fb\u9664\u4e4b\u540e\u67e5\u770b\u4e0bRAID\u78c1\u76d8\u9635\u5217\u7ec4\u7684\u72b6\u6001\u5df2\u7ecf\u88ab\u6539\u53d8\uff1a<\/p>\n
[root@linuxprobe ~]# mdadm \/dev\/md0 -f \/dev\/sdb\r\nmdadm: set \/dev\/sdb faulty in \/dev\/md0\r\n[root@linuxprobe ~]# mdadm -D \/dev\/md0\r\n\/dev\/md0:\r\nVersion : 1.2\r\nCreation Time : Fri May 8 08:11:00 2017\r\nRaid Level : raid10\r\nArray Size : 41909248 (39.97 GiB 42.92 GB)\r\nUsed Dev Size : 20954624 (19.98 GiB 21.46 GB)\r\nRaid Devices : 4\r\nTotal Devices : 4\r\nPersistence : Superblock is persistent\r\nUpdate Time : Fri May 8 08:27:18 2017\r\nState : clean, degraded\r\nActive Devices : 3\r\nWorking Devices : 3\r\nFailed Devices : 1\r\nSpare Devices : 0\r\nLayout : near=2\r\nChunk Size : 512K\r\nName : linuxprobe.com:0 (local to host linuxprobe.com)\r\nUUID : f2993bbd:99c1eb63:bd61d4d4:3f06c3b0\r\nEvents : 21\r\nNumber Major Minor RaidDevice State\r\n0 0 0 0 removed\r\n1 8 32 1 active sync \/dev\/sdc\r\n2 8 48 2 active sync \/dev\/sdd\r\n3 8 64 3 active sync \/dev\/sde0 8 16 - faulty \/dev\/sdb<\/pre>\n
\u5728RAID 10\u7ea7\u522b\u7684\u78c1\u76d8\u9635\u5217\u4e2d\uff0c\u5f53RAID 1\u78c1\u76d8\u9635\u5217\u4e2d\u5b58\u5728\u4e00\u4e2a\u6545\u969c\u76d8\u65f6\u5e76\u4e0d\u5f71\u54cdRAID 10\u78c1\u76d8\u9635\u5217\u7684\u4f7f\u7528\u3002\u5f53\u8d2d\u4e70\u4e86\u65b0\u7684\u786c\u76d8\u8bbe\u5907\u540e\u518d\u4f7f\u7528mdadm\u547d\u4ee4\u6765\u4e88\u4ee5\u66ff\u6362\u5373\u53ef\uff0c\u5728\u6b64\u671f\u95f4\u6211\u4eec\u53ef\u4ee5\u5728\/RAID\u76ee\u5f55\u4e2d\u6b63\u5e38\u5730\u521b\u5efa\u6216\u5220\u9664\u6587\u4ef6\u3002\u7531\u4e8e\u6211\u4eec\u662f\u5728\u865a\u62df\u673a\u4e2d\u6a21\u62df\u786c\u76d8\uff0c\u6240\u4ee5\u5148\u91cd\u542f\u7cfb\u7edf\uff0c\u7136\u540e\u518d\u628a\u65b0\u7684\u786c\u76d8\u6dfb\u52a0\u5230RAID\u78c1\u76d8\u9635\u5217\u4e2d\u3002<\/p>\n
[root@linuxprobe ~]# umount \/RAID\r\n[root@linuxprobe ~]# mdadm \/dev\/md0 -a \/dev\/sdb\r\n[root@linuxprobe ~]# mdadm -D \/dev\/md0\r\n\/dev\/md0:\r\n Version : 1.2\r\n Creation Time : Mon Jan 30 00:08:56 2017\r\n Raid Level : raid10\r\n Array Size : 41909248 (39.97 GiB 42.92 GB)\r\n Used Dev Size : 20954624 (19.98 GiB 21.46 GB)\r\n Raid Devices : 4\r\n Total Devices : 4\r\n Persistence : Superblock is persistent\r\n Update Time : Mon Jan 30 00:19:53 2017\r\n State : clean \r\n Active Devices : 4\r\nWorking Devices : 4\r\n Failed Devices : 0\r\n Spare Devices : 0\r\n Layout : near=2\r\n Chunk Size : 512K\r\n Name : localhost.localdomain:0 (local to host localhost.localdomain)\r\n UUID : d3491c05:cfc81ca0:32489f04:716a2cf0\r\n Events : 56 Number Major Minor RaidDevice State 4 8 16 0 active sync \/dev\/sdb 1 8 32 1 active sync \/dev\/sdc 2 8 48 2 active sync \/dev\/sdd 3 8 64 3 active sync \/dev\/sde[root@linuxprobe ~]# mount -a<\/pre>\n
7.1.3  \u78c1\u76d8\u9635\u5217+\u5907\u4efd\u76d8<\/strong><\/span><\/h6>\n
RAID 10\u78c1\u76d8\u9635\u5217\u4e2d\u6700\u591a\u5141\u8bb850%\u7684\u786c\u76d8\u8bbe\u5907\u53d1\u751f\u6545\u969c\uff0c\u4f46\u662f\u5b58\u5728\u8fd9\u6837\u4e00\u79cd\u6781\u7aef\u60c5\u51b5\uff0c\u5373\u540c\u4e00RAID 1\u78c1\u76d8\u9635\u5217\u4e2d\u7684\u786c\u76d8\u8bbe\u5907\u82e5\u5168\u90e8\u635f\u574f\uff0c\u4e5f\u4f1a\u5bfc\u81f4\u6570\u636e\u4e22\u5931\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5728RAID 10\u78c1\u76d8\u9635\u5217\u4e2d\uff0c\u5982\u679cRAID 1\u4e2d\u7684\u67d0\u4e00\u5757\u786c\u76d8\u51fa\u73b0\u4e86\u6545\u969c\uff0c\u800c\u6211\u4eec\u6b63\u5728\u524d\u5f80\u4fee\u590d\u7684\u8def\u4e0a\uff0c\u6070\u5de7\u8be5RAID1\u78c1\u76d8\u9635\u5217\u4e2d\u7684\u53e6\u4e00\u5757\u786c\u76d8\u8bbe\u5907\u4e5f\u51fa\u73b0\u6545\u969c\uff0c\u90a3\u4e48\u6570\u636e\u5c31\u88ab\u5f7b\u5e95\u4e22\u5931\u4e86\u3002\u5218\u9044\u8001\u5e08\u53ef\u771f\u4e0d\u662f\u4e4c\u9e26\u5634\uff0c\u8fd9\u79cdRAID 1\u78c1\u76d8\u9635\u5217\u4e2d\u7684\u786c\u76d8\u8bbe\u5907\u540c\u65f6\u635f\u574f\u7684\u60c5\u51b5\u8fd8\u771f\u88ab\u6211\u7684\u5b66\u751f\u9047\u5230\u8fc7\u3002<\/p>\n
\u5728\u8fd9\u6837\u7684\u60c5\u51b5\u4e0b\uff0c\u8be5\u600e\u4e48\u529e\u5462\uff1f\u5176\u5b9e\uff0c\u6211\u4eec\u5b8c\u5168\u53ef\u4ee5\u4f7f\u7528RAID\u5907\u4efd\u76d8\u6280\u672f\u6765\u9884\u9632\u8fd9\u7c7b\u4e8b\u6545\u3002\u8be5\u6280\u672f\u7684\u6838\u5fc3\u7406\u5ff5\u5c31\u662f\u51c6\u5907\u4e00\u5757\u8db3\u591f\u5927\u7684\u786c\u76d8\uff0c\u8fd9\u5757\u786c\u76d8\u5e73\u65f6\u5904\u4e8e\u95f2\u7f6e\u72b6\u6001\uff0c\u4e00\u65e6RAID\u78c1\u76d8\u9635\u5217\u4e2d\u6709\u786c\u76d8\u51fa\u73b0\u6545\u969c\u540e\u5219\u4f1a\u9a6c\u4e0a\u81ea\u52a8\u9876\u66ff\u4e0a\u53bb\u3002\u8fd9\u6837\u5f88\u68d2\u5427\uff01<\/p>\n
\u4e3a\u4e86\u907f\u514d\u591a\u4e2a\u5b9e\u9a8c\u4e4b\u95f4\u76f8\u4e92\u53d1\u751f\u51b2\u7a81\uff0c\u6211\u4eec\u9700\u8981\u4fdd\u8bc1\u6bcf\u4e2a\u5b9e\u9a8c\u7684\u76f8\u5bf9\u72ec\u7acb\u6027\uff0c\u4e3a\u6b64\u9700\u8981\u5927\u5bb6\u81ea\u884c\u5c06\u865a\u62df\u673a\u8fd8\u539f\u5230\u521d\u59cb\u72b6\u6001\u3002\u53e6\u5916\uff0c\u7531\u4e8e\u521a\u624d\u5df2\u7ecf\u6f14\u793a\u4e86RAID 10\u78c1\u76d8\u9635\u5217\u7684\u90e8\u7f72\u65b9\u6cd5\uff0c\u6211\u4eec\u73b0\u5728\u6765\u770b\u4e00\u4e0bRAID 5\u7684\u90e8\u7f72\u6548\u679c\u3002\u90e8\u7f72RAID 5\u78c1\u76d8\u9635\u5217\u65f6\uff0c\u81f3\u5c11\u9700\u8981\u7528\u52303\u5757\u786c\u76d8\uff0c\u8fd8\u9700\u8981\u518d\u52a0\u4e00\u5757\u5907\u4efd\u786c\u76d8\uff0c\u6240\u4ee5\u603b\u8ba1\u9700\u8981\u5728\u865a\u62df\u673a\u4e2d\u6a21\u62df4\u5757\u786c\u76d8\u8bbe\u5907\uff0c\u5982\u56fe7-6\u6240\u793a\u3002<\/p>\n
\"\u7b2c7\u7ae0<\/div><\/div>\n
\u56fe7-6  \u5728\u865a\u62df\u673a\u4e2d\u6a21\u62df\u6dfb\u52a04\u5757\u786c\u76d8\u8bbe\u5907<\/p>\n
\u73b0\u5728\u521b\u5efa\u4e00\u4e2aRAID 5\u78c1\u76d8\u9635\u5217+\u5907\u4efd\u76d8\u3002\u5728\u4e0b\u9762\u7684\u547d\u4ee4\u4e2d\uff0c\u53c2\u6570-n 3\u4ee3\u8868\u521b\u5efa\u8fd9\u4e2aRAID 5\u78c1\u76d8\u9635\u5217\u6240\u9700\u7684\u786c\u76d8\u6570\uff0c\u53c2\u6570-l 5\u4ee3\u8868RAID\u7684\u7ea7\u522b\uff0c\u800c\u53c2\u6570-x 1\u5219\u4ee3\u8868\u6709\u4e00\u5757\u5907\u4efd\u76d8\u3002\u5f53\u67e5\u770b\/dev\/md0\uff08\u5373RAID 5\u78c1\u76d8\u9635\u5217\u7684\u540d\u79f0\uff09\u78c1\u76d8\u9635\u5217\u7684\u65f6\u5019\u5c31\u80fd\u770b\u5230\u6709\u4e00\u5757\u5907\u4efd\u76d8\u5728\u7b49\u5f85\u4e2d\u4e86\u3002<\/p>\n
[root@linuxprobe ~]# mdadm -Cv \/dev\/md0 -n 3 -l 5 -x 1 \/dev\/sdb \/dev\/sdc \/dev\/sdd \/dev\/sde\r\nmdadm: layout defaults to left-symmetric\r\nmdadm: layout defaults to left-symmetric\r\nmdadm: chunk size defaults to 512K\r\nmdadm: size set to 20954624K\r\nmdadm: Defaulting to version 1.2 metadata\r\nmdadm: array \/dev\/md0 started.\r\n[root@linuxprobe ~]# mdadm -D \/dev\/md0\r\n\/dev\/md0:\r\nVersion : 1.2\r\nCreation Time : Fri May 8 09:20:35 2017\r\nRaid Level : raid5\r\nArray Size : 41909248 (39.97 GiB 42.92 GB)\r\nUsed Dev Size : 20954624 (19.98 GiB 21.46 GB)\r\nRaid Devices : 3\r\nTotal Devices : 4\r\nPersistence : Superblock is persistent\r\nUpdate Time : Fri May 8 09:22:22 2017\r\nState : clean\r\nActive Devices : 3\r\nWorking Devices : 4\r\nFailed Devices : 0\r\nSpare Devices : 1\r\nLayout : left-symmetric\r\nChunk Size : 512K\r\nName : linuxprobe.com:0 (local to host linuxprobe.com)\r\nUUID : 44b1a152:3f1809d3:1d234916:4ac70481\r\nEvents : 18Number Major Minor RaidDevice State\r\n0 8 16 0 active sync \/dev\/sdb\r\n1 8 32 1 active sync \/dev\/sdc\r\n4 8 48 2 active sync \/dev\/sdd\r\n3 8 64 - spare \/dev\/sde<\/pre>\n
\u73b0\u5728\u5c06\u90e8\u7f72\u597d\u7684RAID 5\u78c1\u76d8\u9635\u5217\u683c\u5f0f\u5316\u4e3aext4\u6587\u4ef6\u683c\u5f0f\uff0c\u7136\u540e\u6302\u8f7d\u5230\u76ee\u5f55\u4e0a\uff0c\u4e4b\u540e\u5c31\u53ef\u4ee5\u4f7f\u7528\u4e86\u3002<\/p>\n
[root@linuxprobe ~]# mkfs.ext4 \/dev\/md0\r\nmke2fs 1.42.9 (28-Dec-2013)\r\nFilesystem label=\r\nOS type: Linux\r\nBlock size=4096 (log=2)\r\nFragment size=4096 (log=2)\r\nStride=128 blocks, Stripe width=256 blocks\r\n2621440 inodes, 10477312 blocks\r\n523865 blocks (5.00%) reserved for the super user\r\nFirst data block=0\r\nMaximum filesystem blocks=2157969408\r\n320 block groups\r\n32768 blocks per group, 32768 fragments per group\r\n8192 inodes per group\r\nSuperblock backups stored on blocks:\r\n32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,\r\n4096000, 7962624\r\nAllocating group tables: done\r\nWriting inode tables: done\r\nCreating journal (32768 blocks): done\r\nWriting superblocks and filesystem accounting information: done\r\n[root@linuxprobe ~]# echo "\/dev\/md0 \/RAID ext4 defaults 0 0" >> \/etc\/fstab\r\n[root@linuxprobe ~]# mkdir \/RAID\r\n[root@linuxprobe ~]# mount -a<\/pre>\n
\u6700\u540e\u662f\u89c1\u8bc1\u5947\u8ff9\u7684\u65f6\u523b\uff01\u6211\u4eec\u518d\u6b21\u628a\u786c\u76d8\u8bbe\u5907\/dev\/sdb\u79fb\u51fa\u78c1\u76d8\u9635\u5217\uff0c\u7136\u540e\u8fc5\u901f\u67e5\u770b\/dev\/md0\u78c1\u76d8\u9635\u5217\u7684\u72b6\u6001\uff0c\u5c31\u4f1a\u53d1\u73b0\u5907\u4efd\u76d8\u5df2\u7ecf\u88ab\u81ea\u52a8\u9876\u66ff\u4e0a\u53bb\u5e76\u5f00\u59cb\u4e86\u6570\u636e\u540c\u6b65\u3002RAID\u4e2d\u7684\u8fd9\u79cd\u5907\u4efd\u76d8\u6280\u672f\u975e\u5e38\u5b9e\u7528\uff0c\u53ef\u4ee5\u5728\u4fdd\u8bc1RAID\u78c1\u76d8\u9635\u5217\u6570\u636e\u5b89\u5168\u6027\u7684\u57fa\u7840\u4e0a\u8fdb\u4e00\u6b65\u63d0\u9ad8\u6570\u636e\u53ef\u9760\u6027\uff0c\u6240\u4ee5\uff0c\u5982\u679c\u516c\u53f8\u4e0d\u5dee\u94b1\u7684\u8bdd\u8fd8\u662f\u518d\u4e70\u4e0a\u4e00\u5757\u5907\u4efd\u76d8\u4ee5\u9632\u4e07\u4e00\u3002<\/p>\n
[root@linuxprobe ~]# mdadm \/dev\/md0 -f \/dev\/sdb\r\nmdadm: set \/dev\/sdb faulty in \/dev\/md0\r\n[root@linuxprobe ~]# mdadm -D \/dev\/md0\r\n\/dev\/md0:\r\nVersion : 1.2\r\nCreation Time : Fri May 8 09:20:35 2017\r\nRaid Level : raid5\r\nArray Size : 41909248 (39.97 GiB 42.92 GB)\r\nUsed Dev Size : 20954624 (19.98 GiB 21.46 GB)\r\nRaid Devices : 3\r\nTotal Devices : 4\r\nPersistence : Superblock is persistent\r\nUpdate Time : Fri May 8 09:23:51 2017\r\nState : active, degraded, recovering\r\nActive Devices : 2\r\nWorking Devices : 3\r\nFailed Devices : 1\r\nSpare Devices : 1\r\nLayout : left-symmetric\r\nChunk Size : 512K\r\nRebuild Status : 0% complete\r\nName : linuxprobe.com:0 (local to host linuxprobe.com)\r\nUUID : 44b1a152:3f1809d3:1d234916:4ac70481\r\nEvents : 21Number Major Minor RaidDevice State\r\n3 8 64 0 spare rebuilding \/dev\/sde\r\n1 8 32 1 active sync \/dev\/sdc\r\n4 8 48 2 active sync \/dev\/sdd\r\n0 8 16 - faulty \/dev\/sdb<\/pre>\n
\u51fa\u73b0\u95ee\u9898?\u5927\u80c6\u63d0\u95ee!<\/strong><\/span><\/p>\n
\n
\u56e0\u8bfb\u8005\u4eec\u786c\u4ef6\u4e0d\u540c\u6216\u64cd\u4f5c\u9519\u8bef\u90fd\u53ef\u80fd\u5bfc\u81f4\u5b9e\u9a8c\u914d\u7f6e\u51fa\u9519\uff0c\u8bf7\u8010\u5fc3\u518d\u4ed4\u7ec6\u770b\u770b\u64cd\u4f5c\u6b65\u9aa4\u5427\uff0c\u4e0d\u8981\u6c14\u9981~<\/p>\n
Linux\u6280\u672f\u4ea4\u6d41\u8bf7\u52a0A\u7fa4\uff1a560843(\u6ee1<\/span><\/strong>)\uff0cB\u7fa4\uff1a340829(\u63a8\u8350<\/span>)\uff0cC\u7fa4\uff1a463590\uff08\u63a8\u8350<\/span><\/strong>\uff09\uff0c\u70b9\u6b64\u67e5\u770b\u5168\u56fd\u7fa4<\/a>\u3002<\/p>\n
*\u672c\u7fa4\u7279\u8272\uff1a\u901a\u8fc7\u53e3\u4ee4\u9a8c\u8bc1\u786e\u4fdd\u6bcf\u4e00\u4e2a\u7fa4\u5458\u90fd\u662f\u300aLinux\u5c31\u8be5\u8fd9\u4e48\u5b66\u300b\u7684\u8bfb\u8005\uff0c\u7b54\u7591\u66f4\u6709\u9488\u5bf9\u6027\uff0c\u4e0d\u5b9a\u671f\u514d\u8d39\u9886\u53d6\u5b9a\u5236\u793c\u54c1\u3002<\/p>\n<\/blockquote>\n
\n
7.2 LVM\u903b\u8f91\u5377\u7ba1\u7406\u5668<\/strong><\/span><\/h5>\n
\u524d\u9762\u5b66\u4e60\u7684\u786c\u76d8\u8bbe\u5907\u7ba1\u7406\u6280\u672f\u867d\u7136\u80fd\u591f\u6709\u6548\u5730\u63d0\u9ad8\u786c\u76d8\u8bbe\u5907\u7684\u8bfb\u5199\u901f\u5ea6\u4ee5\u53ca\u6570\u636e\u7684\u5b89\u5168\u6027\uff0c\u4f46\u662f\u5728\u786c\u76d8\u5206\u597d\u533a\u6216\u8005\u90e8\u7f72\u4e3aRAID\u78c1\u76d8\u9635\u5217\u4e4b\u540e\uff0c\u518d\u60f3\u4fee\u6539\u786c\u76d8\u5206\u533a\u5927\u5c0f\u5c31\u4e0d\u5bb9\u6613\u4e86\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5f53\u7528\u6237\u60f3\u8981\u968f\u7740\u5b9e\u9645\u9700\u6c42\u7684\u53d8\u5316\u8c03\u6574\u786c\u76d8\u5206\u533a\u7684\u5927\u5c0f\u65f6\uff0c\u4f1a\u53d7\u5230\u786c\u76d8\u201c\u7075\u6d3b\u6027\u201d\u7684\u9650\u5236\u3002\u8fd9\u65f6\u5c31\u9700\u8981\u7528\u5230\u53e6\u5916\u4e00\u9879\u975e\u5e38\u666e\u53ca\u7684\u786c\u76d8\u8bbe\u5907\u8d44\u6e90\u7ba1\u7406\u6280\u672f\u4e86\u2014LVM\uff08\u903b\u8f91\u5377\u7ba1\u7406\u5668\uff09\u3002LVM\u53ef\u4ee5\u5141\u8bb8\u7528\u6237\u5bf9\u786c\u76d8\u8d44\u6e90\u8fdb\u884c\u52a8\u6001\u8c03\u6574\u3002<\/p>\n
\u903b\u8f91\u5377\u7ba1\u7406\u5668\u662fLinux\u7cfb\u7edf\u7528\u4e8e\u5bf9\u786c\u76d8\u5206\u533a\u8fdb\u884c\u7ba1\u7406\u7684\u4e00\u79cd\u673a\u5236\uff0c\u7406\u8bba\u6027\u8f83\u5f3a\uff0c\u5176\u521b\u5efa\u521d\u8877\u662f\u4e3a\u4e86\u89e3\u51b3\u786c\u76d8\u8bbe\u5907\u5728\u521b\u5efa\u5206\u533a\u540e\u4e0d\u6613\u4fee\u6539\u5206\u533a\u5927\u5c0f\u7684\u7f3a\u9677\u3002\u5c3d\u7ba1\u5bf9\u4f20\u7edf\u7684\u786c\u76d8\u5206\u533a\u8fdb\u884c\u5f3a\u5236\u6269\u5bb9\u6216\u7f29\u5bb9\u4ece\u7406\u8bba\u4e0a\u6765\u8bb2\u662f\u53ef\u884c\u7684\uff0c\u4f46\u662f\u5374\u53ef\u80fd\u9020\u6210\u6570\u636e\u7684\u4e22\u5931\u3002\u800cLVM\u6280\u672f\u662f\u5728\u786c\u76d8\u5206\u533a\u548c\u6587\u4ef6\u7cfb\u7edf\u4e4b\u95f4\u6dfb\u52a0\u4e86\u4e00\u4e2a\u903b\u8f91\u5c42\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u62bd\u8c61\u7684\u5377\u7ec4\uff0c\u53ef\u4ee5\u628a\u591a\u5757\u786c\u76d8\u8fdb\u884c\u5377\u7ec4\u5408\u5e76\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u7528\u6237\u4e0d\u5fc5\u5173\u5fc3\u7269\u7406\u786c\u76d8\u8bbe\u5907\u7684\u5e95\u5c42\u67b6\u6784\u548c\u5e03\u5c40\uff0c\u5c31\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u786c\u76d8\u5206\u533a\u7684\u52a8\u6001\u8c03\u6574\u3002LVM\u7684\u6280\u672f\u67b6\u6784\u5982\u56fe7-7\u6240\u793a\u3002<\/p>\n
\"\u7b2c7\u7ae0<\/div><\/p>\n
\u56fe7-7  \u903b\u8f91\u5377\u7ba1\u7406\u5668\u7684\u6280\u672f\u7ed3\u6784<\/p>\n
\u4e3a\u4e86\u5e2e\u52a9\u5927\u5bb6\u7406\u89e3\uff0c\u5218\u9044\u8001\u5e08\u6765\u4e3e\u4e00\u4e2a\u5403\u8d27\u7684\u4f8b\u5b50\u3002\u6bd4\u5982\u5c0f\u660e\u5bb6\u91cc\u60f3\u5403\u9992\u5934\u4f46\u662f\u9762\u7c89\u4e0d\u591f\u4e86\uff0c\u4e8e\u662f\u5988\u5988\u4ece\u9694\u58c1\u8001\u738b\u5bb6\u3001\u8001\u674e\u5bb6\u3001\u8001\u5f20\u5bb6\u5206\u522b\u501f\u6765\u4e00\u4e9b\u9762\u7c89\uff0c\u51c6\u5907\u84b8\u9992\u5934\u5403\u3002\u9996\u5148\u9700\u8981\u628a\u8fd9\u4e9b\u9762\u7c89\uff08\u7269\u7406\u5377[PV\uff0cPhysical Volume]\uff09\u63c9\u6210\u4e00\u4e2a\u5927\u9762\u56e2\uff08\u5377\u7ec4[VG\uff0cVolume Group]\uff09\uff0c\u7136\u540e\u518d\u628a\u8fd9\u4e2a\u5927\u9762\u56e2\u5206\u5272\u6210\u4e00\u4e2a\u4e2a\u5c0f\u9992\u5934\uff08\u903b\u8f91\u5377[LV\uff0cLogical Volume]\uff09\uff0c\u800c\u4e14\u6bcf\u4e2a\u5c0f\u9992\u5934\u7684\u91cd\u91cf\u5fc5\u987b\u662f\u6bcf\u52fa\u9762\u7c89\uff08\u57fa\u672c\u5355\u5143[PE\uff0cPhysical Extent]\uff09\u7684\u500d\u6570\u3002<\/p>\n
\u7269\u7406\u5377\u5904\u4e8eLVM\u4e2d\u7684\u6700\u5e95\u5c42\uff0c\u53ef\u4ee5\u5c06\u5176\u7406\u89e3\u4e3a\u7269\u7406\u786c\u76d8\u3001\u786c\u76d8\u5206\u533a\u6216\u8005RAID\u78c1\u76d8\u9635\u5217\uff0c\u8fd9\u90fd\u53ef\u4ee5\u3002\u5377\u7ec4\u5efa\u7acb\u5728\u7269\u7406\u5377\u4e4b\u4e0a\uff0c\u4e00\u4e2a\u5377\u7ec4\u53ef\u4ee5\u5305\u542b\u591a\u4e2a\u7269\u7406\u5377\uff0c\u800c\u4e14\u5728\u5377\u7ec4\u521b\u5efa\u4e4b\u540e\u4e5f\u53ef\u4ee5\u7ee7\u7eed\u5411\u5176\u4e2d\u6dfb\u52a0\u65b0\u7684\u7269\u7406\u5377\u3002\u903b\u8f91\u5377\u662f\u7528\u5377\u7ec4\u4e2d\u7a7a\u95f2\u7684\u8d44\u6e90\u5efa\u7acb\u7684\uff0c\u5e76\u4e14\u903b\u8f91\u5377\u5728\u5efa\u7acb\u540e\u53ef\u4ee5\u52a8\u6001\u5730\u6269\u5c55\u6216\u7f29\u5c0f\u7a7a\u95f4\u3002\u8fd9\u5c31\u662fLVM\u7684\u6838\u5fc3\u7406\u5ff5\u3002<\/p>\n<\/div>\n
\n
7.2.1 \u90e8\u7f72\u903b\u8f91\u5377<\/strong><\/span><\/h6>\n
\u4e00\u822c\u800c\u8a00\uff0c\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u65e0\u6cd5\u7cbe\u786e\u5730\u8bc4\u4f30\u6bcf\u4e2a\u786c\u76d8\u5206\u533a\u5728\u65e5\u540e\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u56e0\u6b64\u4f1a\u5bfc\u81f4\u539f\u5148\u5206\u914d\u7684\u786c\u76d8\u5206\u533a\u4e0d\u591f\u7528\u3002\u6bd4\u5982\uff0c\u4f34\u968f\u7740\u4e1a\u52a1\u91cf\u7684\u589e\u52a0\uff0c\u7528\u4e8e\u5b58\u653e\u4ea4\u6613\u8bb0\u5f55\u7684\u6570\u636e\u5e93\u76ee\u5f55\u7684\u4f53\u79ef\u4e5f\u968f\u4e4b\u589e\u52a0\uff1b\u56e0\u4e3a\u5206\u6790\u5e76\u8bb0\u5f55\u7528\u6237\u7684\u884c\u4e3a\u4ece\u800c\u5bfc\u81f4\u65e5\u5fd7\u76ee\u5f55\u7684\u4f53\u79ef\u4e0d\u65ad\u53d8\u5927\uff0c\u8fd9\u4e9b\u90fd\u4f1a\u5bfc\u81f4\u539f\u6709\u7684\u786c\u76d8\u5206\u533a\u5728\u4f7f\u7528\u4e0a\u6349\u895f\u89c1\u8098\u3002\u800c\u4e14\uff0c\u8fd8\u5b58\u5728\u5bf9\u8f83\u5927\u7684\u786c\u76d8\u5206\u533a\u8fdb\u884c\u7cbe\u7b80\u7f29\u5bb9\u7684\u60c5\u51b5\u3002<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u90e8\u7f72LVM\u6765\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\u3002\u90e8\u7f72LVM\u65f6\uff0c\u9700\u8981\u9010\u4e2a\u914d\u7f6e\u7269\u7406\u5377\u3001\u5377\u7ec4\u548c\u903b\u8f91\u5377\u3002\u5e38\u7528\u7684\u90e8\u7f72\u547d\u4ee4\u5982\u88687-2\u6240\u793a\u3002<\/p>\n
\u88687-2                                                   \u5e38\u7528\u7684LVM\u90e8\u7f72\u547d\u4ee4<\/p>\n\n\n\n\n\n\n\n\n\n
\u529f\u80fd\/\u547d\u4ee4<\/td>\n\u7269\u7406\u5377\u7ba1\u7406<\/td>\n\u5377\u7ec4\u7ba1\u7406<\/td>\n\u903b\u8f91\u5377\u7ba1\u7406<\/td>\n<\/tr>\n
\u626b\u63cf<\/td>\npvscan<\/td>\nvgscan<\/td>\nlvscan<\/td>\n<\/tr>\n
\u5efa\u7acb<\/td>\npvcreate<\/td>\nvgcreate<\/td>\nlvcreate<\/td>\n<\/tr>\n
\u663e\u793a<\/td>\npvdisplay<\/td>\nvgdisplay<\/td>\nlvdisplay<\/td>\n<\/tr>\n
\u5220\u9664<\/td>\npvremove<\/td>\nvgremove<\/td>\nlvremove<\/td>\n<\/tr>\n
\u6269\u5c55<\/td>\n<\/td>\nvgextend<\/td>\nlvextend<\/td>\n<\/tr>\n
\u7f29\u5c0f<\/td>\n<\/td>\nvgreduce<\/td>\nlvreduce<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/p>\n
\u4e3a\u4e86\u907f\u514d\u591a\u4e2a\u5b9e\u9a8c\u4e4b\u95f4\u76f8\u4e92\u53d1\u751f\u51b2\u7a81\uff0c\u8bf7\u5927\u5bb6\u81ea\u884c\u5c06\u865a\u62df\u673a\u8fd8\u539f\u5230\u521d\u59cb\u72b6\u6001\uff0c\u5e76\u5728\u865a\u62df\u673a\u4e2d\u6dfb\u52a0\u4e24\u5757\u65b0\u786c\u76d8\u8bbe\u5907\uff0c\u7136\u540e\u5f00\u673a\uff0c\u5982\u56fe7-8\u6240\u793a\u3002<\/p>\n
\u5728\u865a\u62df\u673a\u4e2d\u6dfb\u52a0\u4e24\u5757\u65b0\u786c\u76d8\u8bbe\u5907\u7684\u76ee\u7684\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u5730\u6f14\u793aLVM\u7406\u5ff5\u4e2d\u7528\u6237\u65e0\u9700\u5173\u5fc3\u5e95\u5c42\u7269\u7406\u786c\u76d8\u8bbe\u5907\u7684\u7279\u6027\u3002\u6211\u4eec\u5148\u5bf9\u8fd9\u4e24\u5757\u65b0\u786c\u76d8\u8fdb\u884c\u521b\u5efa\u7269\u7406\u5377\u7684\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5c06\u8be5\u64cd\u4f5c\u7b80\u5355\u7406\u89e3\u6210\u8ba9\u786c\u76d8\u8bbe\u5907\u652f\u6301LVM\u6280\u672f\uff0c\u6216\u8005\u7406\u89e3\u6210\u662f\u628a\u786c\u76d8\u8bbe\u5907\u52a0\u5165\u5230LVM\u6280\u672f\u53ef\u7528\u7684\u786c\u4ef6\u8d44\u6e90\u6c60\u4e2d\uff0c\u7136\u540e\u5bf9\u8fd9\u4e24\u5757\u786c\u76d8\u8fdb\u884c\u5377\u7ec4\u5408\u5e76\uff0c\u5377\u7ec4\u7684\u540d\u79f0\u53ef\u4ee5\u7531\u7528\u6237\u6765\u81ea\u5b9a\u4e49\u3002\u63a5\u4e0b\u6765\uff0c\u6839\u636e\u9700\u6c42\u628a\u5408\u5e76\u540e\u7684\u5377\u7ec4\u5207\u5272\u51fa\u4e00\u4e2a\u7ea6\u4e3a150MB\u7684\u903b\u8f91\u5377\u8bbe\u5907\uff0c\u6700\u540e\u628a\u8fd9\u4e2a\u903b\u8f91\u5377\u8bbe\u5907\u683c\u5f0f\u5316\u6210EXT4\u6587\u4ef6\u7cfb\u7edf\u540e\u6302\u8f7d\u4f7f\u7528\u3002\u5728\u4e0b\u6587\u4e2d\uff0c\u5218\u9044\u8001\u5e08\u5c06\u5bf9\u6bcf\u4e00\u4e2a\u6b65\u9aa4\u518d\u4f5c\u4e00\u4e9b\u7b80\u5355\u7684\u63cf\u8ff0\u3002<\/p>\n
\u7b2c1\u6b65<\/strong>\uff1a\u8ba9\u65b0\u6dfb\u52a0\u7684\u4e24\u5757\u786c\u76d8\u8bbe\u5907\u652f\u6301LVM\u6280\u672f\u3002<\/p>\n
[root@linuxprobe ~]# pvcreate \/dev\/sdb \/dev\/sdc\r\n Physical volume "\/dev\/sdb" successfully created\r\n Physical volume "\/dev\/sdc" successfully created<\/pre>\n
\"\u7b2c7\u7ae0<\/div><\/p>\n
\u56fe7-8  \u5728\u865a\u62df\u673a\u4e2d\u6dfb\u52a0\u4e24\u5757\u65b0\u7684\u786c\u76d8\u8bbe\u5907<\/p>\n
\u7b2c2\u6b65<\/strong>\uff1a\u628a\u4e24\u5757\u786c\u76d8\u8bbe\u5907\u52a0\u5165\u5230storage\u5377\u7ec4\u4e2d\uff0c\u7136\u540e\u67e5\u770b\u5377\u7ec4\u7684\u72b6\u6001\u3002<\/p>\n
[root@linuxprobe ~]# vgcreate storage \/dev\/sdb \/dev\/sdc\r\n Volume group "storage" successfully created\r\n[root@linuxprobe ~]# vgdisplay\r\n--- Volume group ---\r\n VG Name storage\r\n System ID \r\n Format lvm2\r\n Metadata Areas 2\r\n Metadata Sequence No 1\r\n VG Access read\/write\r\n VG Status resizable\r\n MAX LV 0\r\n Cur LV 0\r\n Open LV 0\r\n Max PV 0\r\n Cur PV 2\r\n Act PV 2\r\n VG Size 39.99 GiB\r\n PE Size 4.00 MiB\r\n Total PE 10238 Alloc PE \/ Size 0 \/ 0  Free PE \/ Size 10238 \/ 39.99 GiB\r\n VG UUID KUeAMF-qMLh-XjQy-ArUo-LCQI-YF0o-pScxm1\r\n\u2026\u2026\u2026\u2026\u2026\u2026\u7701\u7565\u90e8\u5206\u8f93\u51fa\u4fe1\u606f\u2026\u2026\u2026\u2026\u2026\u2026<\/pre>\n
\u7b2c3\u6b65<\/strong>\uff1a\u5207\u5272\u51fa\u4e00\u4e2a\u7ea6\u4e3a150MB\u7684\u903b\u8f91\u5377\u8bbe\u5907\u3002<\/p>\n
\u8fd9\u91cc\u9700\u8981\u6ce8\u610f\u5207\u5272\u5355\u4f4d\u7684\u95ee\u9898\u3002\u5728\u5bf9\u903b\u8f91\u5377\u8fdb\u884c\u5207\u5272\u65f6\u6709\u4e24\u79cd\u8ba1\u91cf\u5355\u4f4d\u3002\u7b2c\u4e00\u79cd\u662f\u4ee5\u5bb9\u91cf\u4e3a\u5355\u4f4d\uff0c\u6240\u4f7f\u7528\u7684\u53c2\u6570\u4e3a-L\u3002\u4f8b\u5982\uff0c\u4f7f\u7528-L 150M\u751f\u6210\u4e00\u4e2a\u5927\u5c0f\u4e3a150MB\u7684\u903b\u8f91\u5377\u3002\u53e6\u5916\u4e00\u79cd\u662f\u4ee5\u57fa\u672c\u5355\u5143\u7684\u4e2a\u6570\u4e3a\u5355\u4f4d\uff0c\u6240\u4f7f\u7528\u7684\u53c2\u6570\u4e3a-l\u3002\u6bcf\u4e2a\u57fa\u672c\u5355\u5143\u7684\u5927\u5c0f\u9ed8\u8ba4\u4e3a4MB\u3002\u4f8b\u5982\uff0c\u4f7f\u7528-l 37\u53ef\u4ee5\u751f\u6210\u4e00\u4e2a\u5927\u5c0f\u4e3a37\u00d74MB=148MB\u7684\u903b\u8f91\u5377\u3002<\/p>\n
[root@linuxprobe ~]# lvcreate -n vo -l 37 storage\r\n Logical volume "vo" created\r\n[root@linuxprobe ~]# lvdisplay \r\n --- Logical volume ---\r\n LV Path \/dev\/storage\/vo\r\n LV Name vo\r\n VG Name storage\r\n LV UUID D09HYI-BHBl-iXGr-X2n4-HEzo-FAQH-HRcM2I\r\n LV Write Access read\/write\r\n LV Creation host, time localhost.localdomain, 2017-02-01 01:22:54 -0500\r\n LV Status available\r\n # open 0 LV Size 148.00 MiB\r\n Current LE 37\r\n Segments 1\r\n Allocation inherit\r\n Read ahead sectors auto\r\n - currently set to 8192\r\n Block device 253:2\r\n\u2026\u2026\u2026\u2026\u2026\u2026\u7701\u7565\u90e8\u5206\u8f93\u51fa\u4fe1\u606f\u2026\u2026\u2026\u2026\u2026\u2026<\/pre>\n
\u7b2c4\u6b65<\/strong>\uff1a\u628a\u751f\u6210\u597d\u7684\u903b\u8f91\u5377\u8fdb\u884c\u683c\u5f0f\u5316\uff0c\u7136\u540e\u6302\u8f7d\u4f7f\u7528\u3002<\/p>\n
Linux\u7cfb\u7edf\u4f1a\u628aLVM\u4e2d\u7684\u903b\u8f91\u5377\u8bbe\u5907\u5b58\u653e\u5728\/dev\u8bbe\u5907\u76ee\u5f55\u4e2d\uff08\u5b9e\u9645\u4e0a\u662f\u505a\u4e86\u4e00\u4e2a\u7b26\u53f7\u94fe\u63a5\uff09\uff0c\u540c\u65f6\u4f1a\u4ee5\u5377\u7ec4\u7684\u540d\u79f0\u6765\u5efa\u7acb\u4e00\u4e2a\u76ee\u5f55\uff0c\u5176\u4e2d\u4fdd\u5b58\u4e86\u903b\u8f91\u5377\u7684\u8bbe\u5907\u6620\u5c04\u6587\u4ef6\uff08\u5373\/dev\/\u5377\u7ec4\u540d\u79f0\/\u903b\u8f91\u5377\u540d\u79f0\uff09\u3002<\/p>\n
[root@linuxprobe ~]# mkfs.ext4 \/dev\/storage\/vo \r\nmke2fs 1.42.9 (28-Dec-2013)\r\nFilesystem label=\r\nOS type: Linux\r\nBlock size=1024 (log=0)\r\nFragment size=1024 (log=0)\r\nStride=0 blocks, Stripe width=0 blocks\r\n38000 inodes, 151552 blocks\r\n7577 blocks (5.00%) reserved for the super user\r\nFirst data block=1\r\nMaximum filesystem blocks=33816576\r\n19 block groups\r\n8192 blocks per group, 8192 fragments per group\r\n2000 inodes per group\r\nSuperblock backups stored on blocks: \r\n 8193, 24577, 40961, 57345, 73729\r\nAllocating group tables: done \r\nWriting inode tables: done \r\nCreating journal (4096 blocks): done\r\nWriting superblocks and filesystem accounting information: done \r\n[root@linuxprobe ~]# mkdir \/linuxprobe\r\n[root@linuxprobe ~]# mount \/dev\/storage\/vo \/linuxprobe<\/pre>\n
\u7b2c5\u6b65<\/strong>\uff1a\u67e5\u770b\u6302\u8f7d\u72b6\u6001\uff0c\u5e76\u5199\u5165\u5230\u914d\u7f6e\u6587\u4ef6\uff0c\u4f7f\u5176\u6c38\u4e45\u751f\u6548\u3002<\/p>\n
[root@linuxprobe ~]# df -h\r\n Filesystem Size Used Avail Use% Mounted on\r\n \/dev\/mapper\/rhel-root 18G 3.0G 15G 17% \/\r\n devtmpfs 905M 0 905M 0% \/dev\r\n tmpfs 914M 140K 914M 1% \/dev\/shm\r\n tmpfs 914M 8.8M 905M 1% \/run\r\n tmpfs 914M 0 914M 0% \/sys\/fs\/cgroup\r\n \/dev\/sr0 3.5G 3.5G 0 100% \/media\/cdrom\r\n \/dev\/sda1 497M 119M 379M 24% \/boot \/dev\/mapper\/storage-vo 145M 7.6M 138M 6% \/linuxprobe\r\n [root@linuxprobe ~]# echo "\/dev\/storage\/vo \/linuxprobe ext4 defaults 0 0" >> \/etc\/fstab<\/pre>\n
7.2.2 \u6269\u5bb9\u903b\u8f91\u5377<\/span><\/strong><\/span><\/h6>\n
\u5728\u524d\u9762\u7684\u5b9e\u9a8c\u4e2d\uff0c\u5377\u7ec4\u662f\u7531\u4e24\u5757\u786c\u76d8\u8bbe\u5907\u5171\u540c\u7ec4\u6210\u7684\u3002\u7528\u6237\u5728\u4f7f\u7528\u5b58\u50a8\u8bbe\u5907\u65f6\u611f\u77e5\u4e0d\u5230\u8bbe\u5907\u5e95\u5c42\u7684\u67b6\u6784\u548c\u5e03\u5c40\uff0c\u66f4\u4e0d\u7528\u5173\u5fc3\u5e95\u5c42\u662f\u7531\u591a\u5c11\u5757\u786c\u76d8\u7ec4\u6210\u7684\uff0c\u53ea\u8981\u5377\u7ec4\u4e2d\u6709\u8db3\u591f\u7684\u8d44\u6e90\uff0c\u5c31\u53ef\u4ee5\u4e00\u76f4\u4e3a\u903b\u8f91\u5377\u6269\u5bb9\u3002\u6269\u5c55\u524d\u8bf7\u4e00\u5b9a\u8981\u8bb0\u5f97\u5378\u8f7d\u8bbe\u5907\u548c\u6302\u8f7d\u70b9\u7684\u5173\u8054\u3002<\/p>\n
[root@linuxprobe ~]# umount \/linuxprobe<\/pre>\n
\u7b2c1\u6b65<\/strong>\uff1a\u628a\u4e0a\u4e00\u4e2a\u5b9e\u9a8c\u4e2d\u7684\u903b\u8f91\u5377vo\u6269\u5c55\u81f3290MB\u3002<\/p>\n
[root@linuxprobe ~]# lvextend -L 290M \/dev\/storage\/vo\r\n Rounding size to boundary between physical extents: 292.00 MiB\r\n Extending logical volume vo to 292.00 MiB\r\n Logical volume vo successfully resized<\/pre>\n
\u7b2c2\u6b65<\/strong>\uff1a\u68c0\u67e5\u786c\u76d8\u5b8c\u6574\u6027\uff0c\u5e76\u91cd\u7f6e\u786c\u76d8\u5bb9\u91cf\u3002<\/p>\n
[root@linuxprobe ~]# e2fsck -f \/dev\/storage\/vo\r\ne2fsck 1.42.9 (28-Dec-2013)\r\nPass 1: Checking inodes, blocks, and sizes\r\nPass 2: Checking directory structure\r\nPass 3: Checking directory connectivity\r\nPass 4: Checking reference counts\r\nPass 5: Checking group summary information\r\n\/dev\/storage\/vo: 11\/38000 files (0.0% non-contiguous), 10453\/151552 blocks\r\n[root@linuxprobe ~]# resize2fs \/dev\/storage\/vo\r\nresize2fs 1.42.9 (28-Dec-2013)\r\nResizing the filesystem on \/dev\/storage\/vo to 299008 (1k) blocks.\r\nThe filesystem on \/dev\/storage\/vo is now 299008 blocks long.<\/pre>\n
\u7b2c3\u6b65<\/strong>\uff1a\u91cd\u65b0\u6302\u8f7d\u786c\u76d8\u8bbe\u5907\u5e76\u67e5\u770b\u6302\u8f7d\u72b6\u6001\u3002<\/p>\n
[root@linuxprobe ~]# mount -a\r\n[root@linuxprobe ~]# df -h\r\nFilesystem Size Used Avail Use% Mounted on\r\n\/dev\/mapper\/rhel-root 18G 3.0G 15G 17% \/\r\ndevtmpfs 985M 0 985M 0% \/dev\r\ntmpfs 994M 80K 994M 1% \/dev\/shm\r\ntmpfs 994M 8.8M 986M 1% \/run\r\ntmpfs 994M 0 994M 0% \/sys\/fs\/cgroup\r\n\/dev\/sr0 3.5G 3.5G 0 100% \/media\/cdrom\r\n\/dev\/sda1 497M 119M 379M 24% \/boot\/dev\/mapper\/storage-vo 279M 2.1M 259M 1% \/linuxprobe<\/pre>\n
7.2.3 \u7f29\u5c0f\u903b\u8f91\u5377<\/span><\/strong><\/span><\/h6>\n
\u76f8\u8f83\u4e8e\u6269\u5bb9\u903b\u8f91\u5377\uff0c\u5728\u5bf9\u903b\u8f91\u5377\u8fdb\u884c\u7f29\u5bb9\u64cd\u4f5c\u65f6\uff0c\u5176\u4e22\u5931\u6570\u636e\u7684\u98ce\u9669\u66f4\u5927\u3002\u6240\u4ee5\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u6267\u884c\u76f8\u5e94\u64cd\u4f5c\u65f6\uff0c\u4e00\u5b9a\u8981\u63d0\u524d\u5907\u4efd\u597d\u6570\u636e\u3002\u53e6\u5916Linux\u7cfb\u7edf\u89c4\u5b9a\uff0c\u5728\u5bf9LVM\u903b\u8f91\u5377\u8fdb\u884c\u7f29\u5bb9\u64cd\u4f5c\u4e4b\u524d\uff0c\u8981\u5148\u68c0\u67e5\u6587\u4ef6\u7cfb\u7edf\u7684\u5b8c\u6574\u6027\uff08\u5f53\u7136\u8fd9\u4e5f\u662f\u4e3a\u4e86\u4fdd\u8bc1\u6211\u4eec\u7684\u6570\u636e\u5b89\u5168\uff09\u3002\u5728\u6267\u884c\u7f29\u5bb9\u64cd\u4f5c\u524d\u8bb0\u5f97\u5148\u628a\u6587\u4ef6\u7cfb\u7edf\u5378\u8f7d\u6389\u3002<\/p>\n
[root@linuxprobe ~]# umount \/linuxprobe<\/pre>\n
\u7b2c1\u6b65<\/strong>\uff1a\u68c0\u67e5\u6587\u4ef6\u7cfb\u7edf\u7684\u5b8c\u6574\u6027\u3002<\/p>\n
[root@linuxprobe ~]# e2fsck -f \/dev\/storage\/vo\r\ne2fsck 1.42.9 (28-Dec-2013)\r\nPass 1: Checking inodes, blocks, and sizes\r\nPass 2: Checking directory structure\r\nPass 3: Checking directory connectivity\r\nPass 4: Checking reference counts\r\nPass 5: Checking group summary information\r\n\/dev\/storage\/vo: 11\/74000 files (0.0% non-contiguous), 15507\/299008 blocks<\/pre>\n
\u7b2c2\u6b65<\/strong>\uff1a\u628a\u903b\u8f91\u5377vo\u7684\u5bb9\u91cf\u51cf\u5c0f\u5230120MB\u3002<\/p>\n
[root@linuxprobe ~]# resize2fs \/dev\/storage\/vo 120M\r\nresize2fs 1.42.9 (28-Dec-2013)\r\nResizing the filesystem on \/dev\/storage\/vo to 122880 (1k) blocks.\r\nThe filesystem on \/dev\/storage\/vo is now 122880 blocks long.\r\n[root@linuxprobe ~]# lvreduce -L 120M \/dev\/storage\/vo\r\n WARNING: Reducing active logical volume to 120.00 MiB\r\n THIS MAY DESTROY YOUR DATA (filesystem etc.)\r\nDo you really want to reduce vo? [y\/n]: y\r\n Reducing logical volume vo to 120.00 MiB\r\n Logical volume vo successfully resized<\/pre>\n
\u7b2c3\u6b65<\/strong>\uff1a\u91cd\u65b0\u6302\u8f7d\u6587\u4ef6\u7cfb\u7edf\u5e76\u67e5\u770b\u7cfb\u7edf\u72b6\u6001\u3002<\/p>\n
[root@linuxprobe ~]# mount -a\r\n[root@linuxprobe ~]# df -h\r\nFilesystem Size Used Avail Use% Mounted on\r\n\/dev\/mapper\/rhel-root 18G 3.0G 15G 17% \/\r\ndevtmpfs 985M 0 985M 0% \/dev\r\ntmpfs 994M 80K 994M 1% \/dev\/shm\r\ntmpfs 994M 8.8M 986M 1% \/run\r\ntmpfs 994M 0 994M 0% \/sys\/fs\/cgroup\r\n\/dev\/sr0 3.5G 3.5G 0 100% \/media\/cdrom\r\n\/dev\/sda1 497M 119M 379M 24% \/boot\r\n\/dev\/mapper\/storage-vo 113M 1.6M 103M 2% \/linuxprobe<\/pre>\n
\n
7.2.4 \u903b\u8f91\u5377\u5feb\u7167<\/strong><\/span><\/h6>\n
LVM\u8fd8\u5177\u5907\u6709\u201c\u5feb\u7167\u5377\u201d\u529f\u80fd\uff0c\u8be5\u529f\u80fd\u7c7b\u4f3c\u4e8e\u865a\u62df\u673a\u8f6f\u4ef6\u7684\u8fd8\u539f\u65f6\u95f4\u70b9\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5bf9\u67d0\u4e00\u4e2a\u903b\u8f91\u5377\u8bbe\u5907\u505a\u4e00\u6b21\u5feb\u7167\uff0c\u5982\u679c\u65e5\u540e\u53d1\u73b0\u6570\u636e\u88ab\u6539\u9519\u4e86\uff0c\u5c31\u53ef\u4ee5\u5229\u7528\u4e4b\u524d\u505a\u597d\u7684\u5feb\u7167\u5377\u8fdb\u884c\u8986\u76d6\u8fd8\u539f\u3002LVM\u7684\u5feb\u7167\u5377\u529f\u80fd\u6709\u4e24\u4e2a\u7279\u70b9\uff1a<\/p>\n
\n
\u5feb\u7167\u5377\u7684\u5bb9\u91cf\u5fc5\u987b\u7b49\u540c\u4e8e\u903b\u8f91\u5377\u7684\u5bb9\u91cf\uff1b<\/p>\n
\u5feb\u7167\u5377\u4ec5\u4e00\u6b21\u6709\u6548\uff0c\u4e00\u65e6\u6267\u884c\u8fd8\u539f\u64cd\u4f5c\u540e\u5219\u4f1a\u88ab\u7acb\u5373\u81ea\u52a8\u5220\u9664\u3002<\/p>\n<\/blockquote>\n
\u9996\u5148\u67e5\u770b\u5377\u7ec4\u7684\u4fe1\u606f\u3002<\/p>\n
[root@linuxprobe ~]# vgdisplay\r\n --- Volume group ---\r\n VG Name storage\r\n System ID \r\n Format lvm2\r\n Metadata Areas 2\r\n Metadata Sequence No 4\r\n VG Access read\/write\r\n VG Status resizable\r\n MAX LV 0\r\n Cur LV 1\r\n Open LV 1\r\n Max PV 0\r\n Cur PV 2\r\n Act PV 2\r\n VG Size 39.99 GiB\r\n PE Size 4.00 MiB\r\n Total PE 10238 Alloc PE \/ Size 30 \/ 120.00 MiB Free PE \/ Size 10208 \/ 39.88 GiB\r\n VG UUID CTaHAK-0TQv-Abdb-R83O-RU6V-YYkx-8o2R0e\r\n\u2026\u2026\u2026\u2026\u2026\u2026\u7701\u7565\u90e8\u5206\u8f93\u51fa\u4fe1\u606f\u2026\u2026\u2026\u2026\u2026\u2026<\/pre>\n
\u901a\u8fc7\u5377\u7ec4\u7684\u8f93\u51fa\u4fe1\u606f\u53ef\u4ee5\u6e05\u6670\u770b\u5230\uff0c\u5377\u7ec4\u4e2d\u5df2\u7ecf\u4f7f\u7528\u4e86120MB\u7684\u5bb9\u91cf\uff0c\u7a7a\u95f2\u5bb9\u91cf\u8fd8\u670939.88GB\u3002\u63a5\u4e0b\u6765\u7528\u91cd\u5b9a\u5411\u5f80\u903b\u8f91\u5377\u8bbe\u5907\u6240\u6302\u8f7d\u7684\u76ee\u5f55\u4e2d\u5199\u5165\u4e00\u4e2a\u6587\u4ef6\u3002<\/p>\n
[root@linuxprobe ~]# echo "Welcome to Linuxprobe.com" > \/linuxprobe\/readme.txt\r\n[root@linuxprobe ~]# ls -l \/linuxprobe\r\ntotal 14\r\ndrwx------. 2 root root 12288 Feb 1 07:18 lost+found\r\n-rw-r--r--. 1 root root 26 Feb 1 07:38 readme.txt<\/pre>\n
\u7b2c1\u6b65<\/strong>\uff1a\u4f7f\u7528-s\u53c2\u6570\u751f\u6210\u4e00\u4e2a\u5feb\u7167\u5377\uff0c\u4f7f\u7528-L\u53c2\u6570\u6307\u5b9a\u5207\u5272\u7684\u5927\u5c0f\u3002\u53e6\u5916\uff0c\u8fd8\u9700\u8981\u5728\u547d\u4ee4\u540e\u9762\u5199\u4e0a\u662f\u9488\u5bf9\u54ea\u4e2a\u903b\u8f91\u5377\u6267\u884c\u7684\u5feb\u7167\u64cd\u4f5c\u3002<\/p>\n
[root@linuxprobe ~]#  lvcreate -L 120M -s -n SNAP \/dev\/storage\/vo\r\n Logical volume "SNAP" created\r\n[root@linuxprobe ~]# lvdisplay\r\n--- Logical volume --- LV Path \/dev\/storage\/SNAP\r\n LV Name SNAP VG Name storage\r\n LV UUID BC7WKg-fHoK-Pc7J-yhSd-vD7d-lUnl-TihKlt\r\n LV Write Access read\/write\r\n LV Creation host, time localhost.localdomain, 2017-02-01 07:42:31 -0500 LV snapshot status active destination for vo\r\n LV Status available\r\n # open 0\r\n LV Size 120.00 MiB\r\n Current LE 30\r\n COW-table size 120.00 MiB\r\n COW-table LE 30 Allocated to snapshot 0.01%\r\n Snapshot chunk size 4.00 KiB\r\n Segments 1\r\n Allocation inherit\r\n Read ahead sectors auto\r\n - currently set to 8192\r\n Block device 253:3\r\n\u2026\u2026\u2026\u2026\u2026\u2026\u7701\u7565\u90e8\u5206\u8f93\u51fa\u4fe1\u606f\u2026\u2026\u2026\u2026\u2026\u2026<\/pre>\n
\u7b2c2\u6b65<\/strong>\uff1a\u5728\u903b\u8f91\u5377\u6240\u6302\u8f7d\u7684\u76ee\u5f55\u4e2d\u521b\u5efa\u4e00\u4e2a100MB\u7684\u5783\u573e\u6587\u4ef6\uff0c\u7136\u540e\u518d\u67e5\u770b\u5feb\u7167\u5377\u7684\u72b6\u6001\u3002\u53ef\u4ee5\u53d1\u73b0\u5b58\u50a8\u7a7a\u95f4\u5360\u7684\u7528\u91cf\u4e0a\u5347\u4e86\u3002<\/p>\n
[root@linuxprobe ~]# dd if=\/dev\/zero of=\/linuxprobe\/files count=1 bs=100M\r\n1+0 records in\r\n1+0 records out\r\n104857600 bytes (105 MB) copied, 3.35432 s, 31.3 MB\/s\r\n[root@linuxprobe ~]# lvdisplay\r\n --- Logical volume ---\r\n LV Path \/dev\/storage\/SNAP\r\n LV Name SNAP\r\n VG Name storage\r\n LV UUID BC7WKg-fHoK-Pc7J-yhSd-vD7d-lUnl-TihKlt\r\n LV Write Access read\/write\r\n LV Creation host, time localhost.localdomain, 2017-02-01 07:42:31 -0500\r\n LV snapshot status active destination for vo\r\n LV Status available\r\n # open 0\r\n LV Size 120.00 MiB\r\n Current LE 30\r\n COW-table size 120.00 MiB\r\n COW-table LE 30 Allocated to snapshot 83.71%\r\n Snapshot chunk size 4.00 KiB\r\n Segments 1\r\n Allocation inherit\r\n Read ahead sectors auto\r\n - currently set to 8192\r\n Block device 253:3<\/pre>\n
\u7b2c3\u6b65<\/strong>\uff1a\u4e3a\u4e86\u6821\u9a8cSNAP\u5feb\u7167\u5377\u7684\u6548\u679c\uff0c\u9700\u8981\u5bf9\u903b\u8f91\u5377\u8fdb\u884c\u5feb\u7167\u8fd8\u539f\u64cd\u4f5c\u3002\u5728\u6b64\u4e4b\u524d\u8bb0\u5f97\u5148\u5378\u8f7d\u6389\u903b\u8f91\u5377\u8bbe\u5907\u4e0e\u76ee\u5f55\u7684\u6302\u8f7d\u3002<\/p>\n
[root@linuxprobe ~]# umount \/linuxprobe\r\n[root@linuxprobe ~]# lvconvert --merge \/dev\/storage\/SNAP\r\n Merging of volume SNAP started.\r\n vo: Merged: 21.4%\r\n vo: Merged: 100.0%\r\n Merge of snapshot into logical volume vo has finished.\r\n Logical volume "SNAP" successfully removed<\/pre>\n
\u7b2c4\u6b65<\/strong>\uff1a\u5feb\u7167\u5377\u4f1a\u88ab\u81ea\u52a8\u5220\u9664\u6389\uff0c\u5e76\u4e14\u521a\u521a\u5728\u903b\u8f91\u5377\u8bbe\u5907\u88ab\u6267\u884c\u5feb\u7167\u64cd\u4f5c\u540e\u518d\u521b\u5efa\u51fa\u6765\u7684100MB\u7684\u5783\u573e\u6587\u4ef6\u4e5f\u88ab\u6e05\u9664\u4e86\u3002<\/p>\n
[root@linuxprobe ~]# mount -a\r\n[root@linuxprobe ~]# ls \/linuxprobe\/\r\nlost+found readme.txt<\/pre>\n
7.2.5 \u5220\u9664\u903b\u8f91\u5377<\/strong><\/span><\/h6>\n
\u5f53\u751f\u4ea7\u73af\u5883\u4e2d\u60f3\u8981\u91cd\u65b0\u90e8\u7f72LVM\u6216\u8005\u4e0d\u518d\u9700\u8981\u4f7f\u7528LVM\u65f6\uff0c\u5219\u9700\u8981\u6267\u884cLVM\u7684\u5220\u9664\u64cd\u4f5c\u3002\u4e3a\u6b64\uff0c\u9700\u8981\u63d0\u524d\u5907\u4efd\u597d\u91cd\u8981\u7684\u6570\u636e\u4fe1\u606f\uff0c\u7136\u540e\u4f9d\u6b21\u5220\u9664\u903b\u8f91\u5377\u3001\u5377\u7ec4\u3001\u7269\u7406\u5377\u8bbe\u5907\uff0c\u8fd9\u4e2a\u987a\u5e8f\u4e0d\u53ef\u98a0\u5012\u3002<\/p>\n
\u7b2c1\u6b65<\/strong>\uff1a\u53d6\u6d88\u903b\u8f91\u5377\u4e0e\u76ee\u5f55\u7684\u6302\u8f7d\u5173\u8054\uff0c\u5220\u9664\u914d\u7f6e\u6587\u4ef6\u4e2d\u6c38\u4e45\u751f\u6548\u7684\u8bbe\u5907\u53c2\u6570\u3002<\/p>\n
[root@linuxprobe ~]# umount \/linuxprobe\r\n[root@linuxprobe ~]# vim \/etc\/fstab\r\n#\r\n# \/etc\/fstab\r\n# Created by anaconda on Fri Feb 19 22:08:59 2017\r\n#\r\n# Accessible filesystems, by reference, are maintained under '\/dev\/disk'\r\n# See man pages fstab(5), findfs(8), mount(8) and\/or blkid(8) for more info\r\n#\r\n\/dev\/mapper\/rhel-root \/ xfs defaults 1 1\r\nUUID=50591e35-d47a-4aeb-a0ca-1b4e8336d9b1 \/boot xfs defaults 1 2\r\n\/dev\/mapper\/rhel-swap swap swap defaults 0 0\r\n\/dev\/cdrom \/media\/cdrom iso9660 defaults 0 0\/dev\/storage\/vo \/linuxprobe ext4 defaults 0 0<\/pre>\n
\u7b2c2\u6b65<\/strong>\uff1a\u5220\u9664\u903b\u8f91\u5377\u8bbe\u5907\uff0c\u9700\u8981\u8f93\u5165y\u6765\u786e\u8ba4\u64cd\u4f5c\u3002<\/p>\n
[root@linuxprobe ~]# lvremove \/dev\/storage\/vo \r\nDo you really want to remove active logical volume vo? [y\/n]: y\r\n Logical volume "vo" successfully removed<\/pre>\n
\u7b2c3\u6b65<\/strong>\uff1a\u5220\u9664\u5377\u7ec4\uff0c\u6b64\u5904\u53ea\u5199\u5377\u7ec4\u540d\u79f0\u5373\u53ef\uff0c\u4e0d\u9700\u8981\u8bbe\u5907\u7684\u7edd\u5bf9\u8def\u5f84\u3002<\/p>\n
[root@linuxprobe ~]# vgremove storage\r\n Volume group "storage" successfully removed<\/pre>\n<\/div>\n
\u7b2c4\u6b65<\/strong>\uff1a\u5220\u9664\u7269\u7406\u5377\u8bbe\u5907\u3002<\/p>\n
[root@linuxprobe ~]# pvremove \/dev\/sdb \/dev\/sdc\r\n Labels on physical volume "\/dev\/sdb" successfully wiped\r\n Labels on physical volume "\/dev\/sdc" successfully wiped<\/pre>\n
\u5728\u4e0a\u8ff0\u64cd\u4f5c\u6267\u884c\u5b8c\u6bd5\u4e4b\u540e\uff0c\u518d\u6267\u884clvdisplay\u3001vgdisplay\u3001pvdisplay\u547d\u4ee4\u6765\u67e5\u770bLVM\u7684\u4fe1\u606f\u65f6\u5c31\u4e0d\u4f1a\u518d\u770b\u5230\u4fe1\u606f\u4e86\uff08\u524d\u63d0\u662f\u4e0a\u8ff0\u6b65\u9aa4\u7684\u64cd\u4f5c\u662f\u6b63\u786e\u7684\uff09\u3002<\/p>\n
\u672c\u7ae0\u8282\u7684\u590d\u4e60\u4f5c\u4e1a<\/span><\/strong><\/p>\n
1\uff0e RAID\u6280\u672f\u4e3b\u8981\u662f\u4e3a\u4e86\u89e3\u51b3\u4ec0\u4e48\u95ee\u9898\u5462\uff1f<\/p>\n
\u7b54\uff1a<\/strong>RAID\u6280\u672f\u53ef\u4ee5\u89e3\u51b3\u5b58\u50a8\u8bbe\u5907\u7684\u8bfb\u5199\u901f\u5ea6\u95ee\u9898\u53ca\u6570\u636e\u7684\u5197\u4f59\u5907\u4efd\u95ee\u9898\u3002<\/span><\/p>\n
2\uff0e RAID 0\u548cRAID 5\u54ea\u4e2a\u66f4\u5b89\u5168\uff1f<\/p>\n
\u7b54\uff1a<\/strong>RAID 0\u6ca1\u6709\u6570\u636e\u5197\u4f59\u529f\u80fd\uff0c\u56e0\u6b64RAID 5\u66f4\u5b89\u5168\u3002<\/span><\/p>\n
3\uff0e\u5047\u8bbe\u4f7f\u75284\u5757\u786c\u76d8\u6765\u90e8\u7f72RAID 10\u65b9\u6848\uff0c\u5916\u52a0\u4e00\u5757\u5907\u4efd\u76d8\uff0c\u6700\u591a\u53ef\u4ee5\u5141\u8bb8\u51e0\u5757\u786c\u76d8\u540c\u65f6\u635f\u574f\u5462\uff1f<\/p>\n
\u7b54\uff1a<\/strong>\u6700\u591a\u5141\u8bb85\u5757\u786c\u76d8\u8bbe\u5907\u4e2d\u76843\u5757\u8bbe\u5907\u540c\u65f6\u635f\u574f\u3002<\/span><\/p>\n
4\uff0e\u4f4d\u4e8eLVM\u6700\u5e95\u5c42\u7684\u662f\u7269\u7406\u5377\u8fd8\u662f\u5377\u7ec4\uff1f<\/p>\n
\u7b54\uff1a<\/strong>\u6700\u5e95\u5c42\u7684\u662f\u7269\u7406\u5377\uff0c\u7136\u540e\u5728\u901a\u8fc7\u7269\u7406\u5377\u7ec4\u6210\u5377\u7ec4\u3002<\/span><\/p>\n
5\uff0e LVM\u5bf9\u903b\u8f91\u5377\u7684\u6269\u5bb9\u548c\u7f29\u5bb9\u64cd\u4f5c\u6709\u4f55\u5f02\u540c\u70b9\u5462\uff1f<\/p>\n
\u7b54\uff1a<\/strong>\u6269\u5bb9\u548c\u7f29\u5bb9\u64cd\u4f5c\u90fd\u9700\u8981\u5148\u53d6\u6d88\u903b\u8f91\u5377\u4e0e\u76ee\u5f55\u7684\u6302\u8f7d\u5173\u8054\uff1b\u6269\u5bb9\u64cd\u4f5c\u662f\u5148\u6269\u5bb9\u540e\u68c0\u67e5\u6587\u4ef6\u7cfb\u7edf\u5b8c\u6574\u6027\uff0c\u800c\u7f29\u5bb9\u64cd\u4f5c\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u7684\u5b89\u5168\uff0c\u9700\u8981\u5148\u68c0\u67e5\u6587\u4ef6\u7cfb\u7edf\u5b8c\u6574\u6027\u518d\u7f29\u5bb9\u3002<\/span><\/p>\n
6\uff0e LVM\u7684\u5feb\u7167\u5377\u80fd\u4f7f\u7528\u51e0\u6b21\uff1f<\/p>\n
\u7b54\uff1a<\/strong>\u53ea\u53ef\u4f7f\u7528\u4e00\u6b21\uff0c\u800c\u4e14\u4f7f\u7528\u540e\u5373\u81ea\u52a8\u5220\u9664\u3002<\/span><\/p>\n
7\uff0e LVM\u7684\u5220\u9664\u987a\u5e8f\u662f\u600e\u4e48\u6837\u7684\uff1f<\/p>\n
\u7b54\uff1a<\/strong>\u4f9d\u6b21\u79fb\u9664\u903b\u8f91\u5377\u3001\u5377\u7ec4\u548c\u7269\u7406\u5377\u3002<\/span><\/p>\n<\/div>\n
\u672c\u6587\u539f\u521b\u5730\u5740\uff1ahttps:\/\/www.linuxprobe.com\/chapter-07.html<\/a><\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a8\u8350\u7b80\u8ff0\uff1a \u8bf4\u5230Linux\u7cfb\u7edf\u4ece01\u5e74\u5f00\u59cb\u6211\u5c31\u4e00\u76f4\u5728\u63a5\u89e6\uff0c\u76f4\u523003\u5e74\u8fd8\u662f04\u5e74\u7684\u65f6\u5019\u5728\u60e0\u5dde\u65b0\u534e\u4e66\u5e97\u4e70\u4e86\u4e00\u672c\u300a\u9e1f […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[35,498,497,442],"class_list":["post-52","post","type-post","status-publish","format-standard","hentry","category-1","tag-linux","tag-lvm","tag-raid","tag-442"],"_links":{"self":[{"href":"https:\/\/www.fatesky.com\/index.php?rest_route=\/wp\/v2\/posts\/52","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fatesky.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fatesky.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fatesky.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fatesky.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=52"}],"version-history":[{"count":1,"href":"https:\/\/www.fatesky.com\/index.php?rest_route=\/wp\/v2\/posts\/52\/revisions"}],"predecessor-version":[{"id":3441,"href":"https:\/\/www.fatesky.com\/index.php?rest_route=\/wp\/v2\/posts\/52\/revisions\/3441"}],"wp:attachment":[{"href":"https:\/\/www.fatesky.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=52"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fatesky.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=52"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fatesky.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=52"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}