RAID\u7b80\u4ecb <\/p>\n
RAID\u662f\u5197\u4f59\u78c1\u76d8\u9635\u5217\uff08Redundant Array of Inexpensive Disk\uff09\u7684\u7b80\u79f0\u3002\u5b83\u662f\u628a\u591a\u4e2a\u78c1\u76d8\u7ec4\u6210\u4e00\u4e2a\u9635\u5217\uff0c\u5f53\u4f5c\u5355\u4e00\u78c1\u76d8\u4f7f\u7528\u3002\u5b83\u5c06\u6570\u636e\u4ee5\u5206\u6bb5(striping)\u7684\u65b9\u5f0f\u5206\u6563\u5b58\u50a8\u5728\u4e0d\u540c\u7684\u78c1\u76d8\u4e2d\uff0c\u901a\u8fc7\u591a\u4e2a\u78c1\u76d8\u7684\u540c\u65f6\u8bfb\u5199\uff0c\u6765\u51cf\u5c11\u6570\u636e\u7684\u5b58\u53d6\u65f6\u95f4\uff0c\u5e76\u4e14\u53ef\u4ee5\u5229\u7528\u4e0d\u540c\u7684\u6280\u672f\u5b9e\u73b0\u6570\u636e\u7684\u5197\u4f59\uff0c\u5373\u4f7f\u6709\u4e00\u4e2a\u78c1\u76d8\u635f\u574f\uff0c\u4e5f\u53ef\u4ee5\u4ece\u5176\u4ed6\u7684\u78c1\u76d8\u4e2d\u6062\u590d\u6240\u6709\u7684\u6570\u636e\u3002\u7b80\u5355\u5730\u8bf4\uff0c\u5176\u597d\u5904\u5c31\u662f\uff1a\u5b89\u5168\u6027\u9ad8\u3001\u901f\u5ea6\u5feb\u3001\u6570\u636e\u5bb9\u91cf\u5927\u3002 <\/p>\n
\u78c1\u76d8\u9635\u5217\u6839\u636e\u5176\u4f7f\u7528\u7684\u6280\u672f\u4e0d\u540c\u800c\u5212\u5206\u4e86\u7b49\u7ea7\uff0c\u79f0\u4e3aRAID level\uff0c\u76ee\u524d\u516c\u8ba4\u7684\u6807\u51c6\u662fRAID 0\uff5eRAID 5\u3002\u5176\u4e2d\u7684level\u5e76\u4e0d\u4ee3\u8868\u6280\u672f\u7684\u9ad8\u4f4e\uff0cRAID 5\u5e76\u4e0d\u9ad8\u4e8eRAID 4 \uff0cRAID 0\u5e76\u4e0d\u4f4e\u4e8eRAID 2 \uff0c\u81f3\u4e8e\u9009\u62e9\u54ea\u4e00\u79cdRAID\u9700\u89c6\u7528\u6237\u7684\u9700\u6c42\u800c\u5b9a\u3002\u4e0b\u9762\u5206\u522b\u5bf9\u5e38\u7528\u7684RAID 0\u3001RAID 1\u3001RAID 5\u8fdb\u884c\u7b80\u5355\u7684\u4ecb\u7ecd\u3002 <\/p>\n
1\uff0eRAID 0 <\/p>\n
\u7279\u70b9\uff1a\u5b83\u662f\u5c06\u591a\u4e2a\u78c1\u76d8\u5e76\u5217\u8d77\u6765\uff0c\u6210\u4e3a\u4e00\u4e2a\u5927\u786c\u76d8\u3002\u5728\u5b58\u53d6\u6570\u636e\u65f6\uff0c\u5c06\u6570\u636e\u6309\u78c1\u76d8\u7684\u4e2a\u6570\u6765\u8fdb\u884c\u5206\u6bb5\uff0c\u7136\u540e\u540c\u65f6\u5c06\u8fd9\u4e9b\u6570\u636e\u5199\u8fdb\u8fd9\u4e9b\u76d8\u4e2d\u3002\u5728\u6240\u6709\u7684\u7ea7\u522b\u4e2d\uff0cRAID 0\u7684\u901f\u5ea6\u662f\u6700\u5feb\u7684\u3002\u4f46\u6ca1\u6709\u6570\u636e\u5197\u4f59\uff0c\u9635\u5217\u4e2d\u4efb\u4f55\u4e00\u4e2a\u78c1\u76d8\u574f\u6389\uff0c\u610f\u5473\u7740\u6240\u6709\u6570\u636e\u4e22\u5931\u3002 <\/p>\n
<\/p>\n
\u78c1\u76d8\u5229\u7528\u6570\uff1an(\u5047\u8bbe\u6709n\u4e2a\u78c1\u76d8)\u3002 <\/p>\n
\u914d\u7f6e\u6761\u4ef6\uff1a\u6700\u4f4e\u4e24\u5757\u78c1\u76d8\uff0c\u4e14\u5206\u533a\u5927\u5c0f\u5c3d\u91cf\u76f8\u540c\u3002 <\/p>\n
\u5e94\u7528\u9886\u57df\uff1a\u5bf9\u9ad8\u78c1\u76d8\u5bb9\u91cf\u53ca\u9ad8\u901f\u78c1\u76d8\u5b58\u53d6\u6709\u7279\u6b8a\u9700\u6c42\uff0c\u800c\u53c8\u4e0d\u8ba1\u8f83\u5176\u9ad8\u6545\u969c\u7387\u7684\u5de5\u4f5c\u3002\u5f53\u7136\uff0c\u5982\u679c\u4f60\u6b63\u5728\u4f7f\u7528\u96c6\u7fa4\uff0cRAID 0 \u65e0\u7591\u662f\u63d0\u9ad8\u78c1\u76d8I\/O\u6027\u80fd\u7684\u6700\u597d\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4f60\u5c31\u4e0d\u7528\u62c5\u5fc3\u5197\u4f59\u7684\u95ee\u9898\u4e86\u3002 <\/p>\n
2\uff0eRAID 1 <\/p>\n
\u7279\u70b9\uff1a\u4f7f\u7528\u78c1\u76d8\u955c\u50cf(disk mirroring)\u7684\u6280\u672f\uff0c\u5728\u4e00\u4e2a\u78c1\u76d8\u4e0a\u5b58\u653e\u6570\u636e\u7684\u540c\u65f6\u4e5f\u5728\u53e6\u4e00\u4e2a\u78c1\u76d8\u4e0a\u5199\u4e00\u6837\u7684\u6570\u636e\u3002\u56e0\u4e3a\u6709\u4e86\u5907\u4efd\u78c1\u76d8\uff0c\u6240\u4ee5RAID 1\u7684\u6570\u636e\u5b89\u5168\u6027\u5728\u6240\u6709\u7684RAID\u7ea7\u522b\u4e0a\u6765\u8bf4\u662f\u6700\u597d\u7684\u3002\u5c3d\u7ba1\u5176\u5199\u5165\u6570\u636e\u7684\u901f\u5ea6\u6bd4\u8f83\u6162\uff0c\u4f46\u56e0\u5176\u6570\u636e\u662f\u4ee5\u5206\u6bb5\u7684\u65b9\u5f0f\u4f5c\u50a8\u5b58\uff0c\u56e0\u800c\u5728\u8bfb\u53d6\u65f6,\u5b83\u51e0\u4e4e\u548cRAID 0\u6709\u540c\u6837\u7684\u6027\u80fd\u3002 <\/p>\n
\u78c1\u76d8\u5229\u7528\u6570\uff1an\/2\u3002 <\/p>\n
\u914d\u7f6e\u6761\u4ef6\uff1a\u6700\u4f4e\u4e24\u5757\u78c1\u76d8\uff0c\u4e14\u5206\u533a\u5927\u5c0f\u5c3d\u91cf\u76f8\u540c\u3002 <\/p>\n
\u5e94\u7528\u9886\u57df\uff1a\u6570\u636e\u5e93\u3001\u91d1\u878d\u7cfb\u7edf\u7b49\u4e00\u4e9b\u5bf9\u6570\u636e\u6709\u7740\u9ad8\u53ef\u9760\u6027\u8981\u6c42\u7684\u9886\u57df\u3002\u518d\u8005\u5c31\u662f\u7cfb\u7edf\u4e2d\u5199\u6570\u636e\u91cf\u6bd4\u8f83\u5c11\uff0c\u800c\u8bfb\u6570\u636e\u91cf\u53c8\u6bd4\u8f83\u591a\u7684\u60c5\u51b5\u4e0b\u53ef\u4ee5\u91c7\u7528\u8fd9\u4e00\u6a21\u5f0f\u3002 <\/p>\n
3\uff0eRAID 5 <\/p>\n
\u7279\u70b9\uff1a\u4ee5\u6570\u636e\u7684\u6821\u9a8c\u4f4d\u6765\u4fdd\u8bc1\u6570\u636e\u7684\u5b89\u5168\uff0c\u4f46\u5b83\u4e0d\u662f\u4ee5\u5355\u72ec\u786c\u76d8\u6765\u5b58\u653e\u6570\u636e\u7684\u6821\u9a8c\u4f4d\uff0c\u800c\u662f\u5c06\u6570\u636e\u6bb5\u7684\u6821\u9a8c\u4f4d\u4ea4\u4e92\u5b58\u653e\u4e8e\u5404\u4e2a\u78c1\u76d8\u4e0a\u3002\u8fd9\u6837\uff0c\u4efb\u4f55\u4e00\u4e2a\u78c1\u76d8\u635f\u574f\uff0c\u90fd\u53ef\u4ee5\u6839\u636e\u5176\u4ed6\u78c1\u76d8\u4e0a\u7684\u6821\u9a8c\u4f4d\u6765\u91cd\u5efa\u635f\u574f\u7684\u6570\u636e\u3002\u5e76\u884c\u8bfb\u5199\u6570\u636e\uff0c\u6027\u80fd\u4e5f\u5f88\u9ad8\u3002 <\/p>\n
\u78c1\u76d8\u5229\u7528\u6570\uff1an-1\u3002 <\/p>\n
\u914d\u7f6e\u6761\u4ef6\uff1a\u6700\u4f4e\u4e09\u5757\u786c\u76d8\uff0c\u4e14\u5206\u533a\u5927\u5c0f\u5c3d\u91cf\u76f8\u540c\u3002 <\/p>\n
\u5e94\u7528\u9886\u57df\uff1a\u9002\u5408\u4e8e\u4e8b\u52a1\u5904\u7406\u73af\u5883\uff0c\u4f8b\u5982\u6c11\u822a\u552e\u7968\u5904\u3001\u9500\u552e\u7cfb\u7edf\u7b49\u3002<\/p>\n
\u901a\u5e38\u60c5\u51b5\u4e0b\u4eba\u4eec\u5728\u670d\u52a1\u5668\u7aef\u91c7\u7528\u5404\u79cd\u5197\u4f59\u78c1\u76d8\u9635\u5217\uff08RAID\uff09\u6280\u672f\u6765\u4fdd\u62a4\u6570\u636e\uff0c\u4e2d\u9ad8\u6863\u7684\u670d\u52a1\u5668\u4e00\u822c\u90fd\u63d0\u4f9b\u4e86\u6602\u8d35\u7684\u786c\u4ef6RAID\u63a7\u5236\u5668\u3002\u5bf9\u4e8e\u8d44\u91d1\u5b9e\u529b\u6709\u9650\u7684\u4e2d\u5c0f\u4f01\u4e1a\u6765\u8bb2\uff0c\u5728Linux\u4e0b\u901a\u8fc7\u8f6f\u4ef6\u6765\u5b9e\u73b0\u786c\u4ef6\u7684RAID\u529f\u80fd\uff0c\u8fd9\u6837\u65e2\u8282\u7701\u4e86\u6295\u8d44\uff0c\u53c8\u80fd\u8fbe\u5230\u5f88\u597d\u7684\u6548\u679c\u3002\u4f55\u4e50\u800c\u4e0d\u4e3a\u5462\uff1f <\/p>\n
\u4f5c\u4e3a\u4e00\u4e2a\u9762\u5411\u670d\u52a1\u5668\u7684\u7f51\u7edc\u578b\u64cd\u4f5c\u7cfb\u7edf\uff0cLinux\u5bf9\u6570\u636e\u7684\u5b89\u5168\u548c\u5b58\u53d6\u901f\u5ea6\u7ed9\u4e88\u4e86\u9ad8\u5ea6\u91cd\u89c6\uff0c\u4ece2.4\u7248\u5185\u6838\u5f00\u59cbLinux\u5c31\u5b9e\u73b0\u4e86\u5bf9\u8f6f\u4ef6RAID\u7684\u652f\u6301\uff08\u5173\u4e8eRAID\u7684\u80cc\u666f\u77e5\u8bc6\u8bf7\u89c1\u9644\u6587\uff09\uff0c\u8fd9\u8ba9\u6211\u4eec\u53ef\u4ee5\u4e0d\u5fc5\u8d2d\u4e70\u6602\u8d35\u7684\u786c\u4ef6RAID\u8bbe\u5907\uff0c\u5c31\u80fd\u4eab\u53d7\u5230\u589e\u5f3a\u7684\u78c1\u76d8I\/O\u6027\u80fd\u548c\u53ef\u9760\u6027\uff0c\u8fdb\u4e00\u6b65\u964d\u4f4e\u4e86\u7cfb\u7edf\u7684\u603b\u4f53\u62e5\u6709\u6210\u672c\u3002\u4e0b\u9762\u5c31\u8ba9\u6211\u4eec\u770b\u4e00\u4e2aRedhat Linux AS 4\u4e0b\u7684\u8f6f\u4ef6RAID\u914d\u7f6e\u5b9e\u4f8b\u5427\u3002 <\/p>\n
\u7cfb\u7edf\u914d\u7f6e\u60c5\u51b5 <\/p>\n
\u5047\u8bbe\u67d0\u5355\u4f4d\u65b0\u4e0a\u4e86\u4e00\u5957\u4f7f\u7528Oracle\u6570\u636e\u5e93\u7684\u80fd\u91cf\u91c7\u96c6\u7cfb\u7edf\uff0c\u8be5\u7cfb\u7edf\u6570\u636e\u91cf\u6781\u5927\u5e76\u4e14\u8bfb\u5199\u975e\u5e38\u9891\u7e41\uff0c\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\uff0c\u9ad8\u5cf0\u65f6\u6709\u8fd140\u540d\u7528\u6237\u5728\u7ebf\uff0c\u5bf9\u6570\u636e\u5e93\u670d\u52a1\u5668\u7684\u78c1\u76d8\u5b50\u7cfb\u7edf\u63d0\u51fa\u4e86\u5f88\u9ad8\u7684\u8981\u6c42\u3002\u7531\u4e8e\u9884\u7b97\u6bd4\u8f83\u7d27\u5f20\uff0c\u7ecf\u8fc7\u591a\u65b9\u6bd4\u8f83\uff0c\u6700\u7ec8\u9009\u62e9\u4e86\u91c7\u7528Linux\u7cfb\u7edf\u505a\u8f6f\u4ef6RAID5\u7684\u65b9\u6848\u3002 <\/p>\n
\u5176\u914d\u7f6e\u60c5\u51b5\u5982\u4e0b\uff1a <\/p>\n
\u25cf \u64cd\u4f5c\u7cfb\u7edf\u4e3aRedHat Linux AS 4\uff1b <\/p>\n
\u25cf \u5185\u6838\u7248\u672c\u4e3a2.6.9-5.EL\uff1b <\/p>\n
\u25cf \u652f\u6301RAID0\u3001RAID1\u3001RAID4\u3001RAID5\u3001RAID6\uff1b <\/p>\n
\u25cf \u4e94\u575736GB SCSI\u63a5\u53e3\u7684\u78c1\u76d8\uff0c\u5176\u4e2dRedHat AS 4\u5b89\u88c5\u5728\u7b2c\u4e00\u5757\u78c1\u76d8\uff0c\u5176\u5b83\u56db\u5757\u7ec4\u6210RAID 5\u7528\u6765\u5b58\u653eOracle\u6570\u636e\u5e93\u3002 <\/p>\n
\u5728RedHat AS 4\u4e0b\u5b9e\u73b0\u8f6f\u4ef6RAID\u662f\u901a\u8fc7mdadm\u5de5\u5177\u5b9e\u73b0\u7684\uff0c\u5176\u7248\u672c\u4e3a1.6.0\uff0c\u5b83\u662f\u4e00\u4e2a\u5355\u4e00\u7684\u7a0b\u5e8f\uff0c\u521b\u5efa\u3001\u7ba1\u7406RAID\u90fd\u975e\u5e38\u65b9\u4fbf\uff0c\u800c\u4e14\u4e5f\u5f88\u7a33\u5b9a\u3002\u800c\u5728\u65e9\u671fLinux\u4e0b\u4f7f\u7528\u7684raidtools\uff0c\u7531\u4e8e\u7ef4\u62a4\u8d77\u6765\u5f88\u56f0\u96be\uff0c\u800c\u4e14\u5176\u6027\u80fd\u6709\u9650\uff0c\u5728RedHat AS 4\u4e0b\u5df2\u7ecf\u4e0d\u652f\u6301\u4e86\u3002 <\/p>\n
\u5b9e\u73b0\u8fc7\u7a0b <\/p>\n
1\uff0e\u521b\u5efa\u5206\u533a <\/p>\n
\u4e94\u5757SCSI\u78c1\u76d8\u5206\u522b\u5bf9\u5e94\/dev\/sda\u3001\/dev\/sdb\u3001\/dev\/sdc\u3001\/dev\/sdd\u3001\/dev\/sde\u3002\u5176\u4e2d\u7b2c\u4e00\u5757\u78c1\u76d8\/dev\/sda\u5206\u4e24\u4e2a\u533a\uff0c\u7528\u4e8e\u5b89\u88c5RedHat AS 4\u548c\u505a\u4ea4\u6362\u5206\u533a\uff0c\u5176\u4ed6\u56db\u5757\u78c1\u76d8\u6bcf\u5757\u53ea\u5206\u4e00\u4e2a\u4e3b\u5206\u533a\uff0c\u5206\u522b\u4e3a\/dev\/sdb1\u3001\/dev\/sdc1\u3001\/dev\/sdd1\u3001\/dev\/sde1\uff0c\u5e76\u4e14\u5c06\u5206\u533a\u7c7b\u578b\u6307\u5b9a\u4e3a\u201cfd\u201d\uff0c\u8fd9\u5c06\u4f7fLinux\u5185\u6838\u80fd\u5c06\u5b83\u4eec\u8bc6\u522b\u4e3aRAID\u5206\u533a\uff0c\u4e14\u5728\u6bcf\u6b21\u5f15\u5bfc\u65f6\u81ea\u52a8\u88ab\u68c0\u6d4b\u5e76\u542f\u52a8\u3002\u521b\u5efa\u5206\u533a\u4f7f\u7528fdisk\u547d\u4ee4\u3002 <\/p>\n
# fdisk \/dev\/sdb <\/p>\n
\u8fdb\u5165fdisk\u547d\u4ee4\u884c\u540e\uff0c\u4f7f\u7528\u547d\u4ee4n\u521b\u5efa\u5206\u533a\uff0c\u547d\u4ee4t\u6539\u53d8\u5206\u533a\u7c7b\u578b\uff0c\u547d\u4ee4w\u4fdd\u5b58\u5206\u533a\u8868\u5e76\u9000\u51fa\uff0c\u547d\u4ee4m\u4e3a\u5e2e\u52a9\u3002 <\/p>\n
2\uff0e\u521b\u5efaRAID 5 <\/p>\n
\u8fd9\u91cc\u4f7f\u7528\u4e86\/dev\/sdb1\u3001\/dev\/sdc1\u3001\/dev\/sdd1\u3001\/dev\/sde1\u56db\u4e2a\u8bbe\u5907\u521b\u5efaRAID 5\uff0c\u5176\u4e2d\/dev\/sde1\u4f5c\u4e3a\u5907\u4efd\u8bbe\u5907\uff0c\u5176\u4ed6\u4e3a\u6d3b\u52a8\u8bbe\u5907\u3002\u5907\u4efd\u8bbe\u5907\u4e3b\u8981\u8d77\u5907\u7528\u4f5c\u7528\uff0c\u4e00\u65e6\u67d0\u4e00\u8bbe\u5907\u635f\u574f\u53ef\u4ee5\u7acb\u5373\u7528\u5907\u4efd\u8bbe\u5907\u66ff\u6362\uff0c\u5f53\u7136\u4e5f\u53ef\u4ee5\u4e0d\u4f7f\u7528\u5907\u4efd\u8bbe\u5907\u3002\u547d\u4ee4\u683c\u5f0f\u5982\u4e0b\uff1a <\/p>\n
# mdadm -Cv \/dev\/md0 -l5 -n3 -x1 -c128 \/dev\/sd[b,c,d,e]1 <\/p>\n
\u547d\u4ee4\u4e2d\u5404\u53c2\u6570\u5206\u522b\u8868\u793a\u5982\u4e0b\u4f5c\u7528\uff1a\u201c-C\u201d\u6307\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u9635\u5217\uff1b\u201c\/dev\/md0\u201d\u8868\u793a\u9635\u5217\u8bbe\u5907\u540d\u79f0\uff1b\u201c-l5\u201d\u8868\u793a\u8bbe\u7f6e\u9635\u5217\u6a21\u5f0f\uff0c\u53ef\u4ee5\u9009\u62e90\u30011\u30014\u30015\u30016\uff0c\u5b83\u4eec\u5206\u522b\u5bf9\u5e94\u4e8eRAID0\u3001RAID1\u3001RAID4\u3001RAID5\u3001RAID6\uff0c\u8fd9\u91cc\u8bbe\u4e3aRAID5\u6a21\u5f0f\uff1b\u201c-n3\u201d\u6307\u8bbe\u7f6e\u9635\u5217\u4e2d\u6d3b\u52a8\u8bbe\u5907\u7684\u6570\u76ee\uff0c\u8be5\u6570\u76ee\u52a0\u4e0a\u5907\u7528\u8bbe\u5907\u7684\u6570\u76ee\u5e94\u7b49\u4e8e\u9635\u5217\u4e2d\u7684\u603b\u8bbe\u5907\u6570; \u201c-x1\u201d\u8bbe\u7f6e\u9635\u5217\u4e2d\u5907\u4efd\u8bbe\u5907\u7684\u6570\u76ee\uff0c\u5f53\u524d\u9635\u5217\u4e2d\u542b\u67091\u4e2a\u5907\u4efd\u8bbe\u5907\uff1b\u201c-c128\u201d\u6307\u8bbe\u7f6e\u5757\u7684\u5c3a\u5bf8\u4e3a128KB\uff0c\u7f3a\u7701\u4e3a64KB\uff1b\u201c\/dev\/sd[b,c,d,e]1\u201d\u6307\u5f53\u524d\u9635\u5217\u4e2d\u5305\u542b\u7684\u6240\u6709\u8bbe\u5907\u6807\u8bc6\u7b26\uff0c\u4e5f\u53ef\u4ee5\u5206\u5f00\u6765\u5199\uff0c\u4e2d\u95f4\u7528\u7a7a\u683c\u5206\u5f00\uff0c\u5176\u4e2d\u6700\u540e\u4e00\u4e2a\u4e3a\u5907\u4efd\u8bbe\u5907\u3002 <\/p>\n
3\uff0e\u67e5\u770b\u9635\u5217\u72b6\u6001 <\/p>\n
\u5f53\u521b\u5efa\u4e00\u4e2a\u65b0\u9635\u5217\u6216\u8005\u9635\u5217\u91cd\u6784\u65f6\uff0c\u8bbe\u5907\u9700\u8981\u8fdb\u884c\u540c\u6b65\u64cd\u4f5c\uff0c\u8fd9\u4e00\u8fc7\u7a0b\u9700\u8981\u4e00\u5b9a\u65f6\u95f4\uff0c\u53ef\u4ee5\u901a\u8fc7\u67e5\u770b\/proc\/mdstat\u6587\u4ef6\uff0c\u6765\u663e\u793a\u9635\u5217\u7684\u5f53\u524d\u72b6\u6001\u4ee5\u53ca\u540c\u6b65\u8fdb\u5ea6\u3001\u6240\u9700\u65f6\u95f4\u7b49\u3002 <\/p>\n
# more \/proc\/mdstat <\/p>\n
Personalities : [raid5] <\/p>\n
md0 : active raid5 sdd1[3] sde1[4] sdc1[1] sdb1[0] <\/p>\n
75469842 blocks level 5, 128k chunk, algorithm 2 [3\/2] [UU_] <\/p>\n
[>………………..] recovery = 4.3% (1622601\/37734912) finish=1.0min speed=15146K\/sec <\/p>\n
unused devices: <\/p>\n
\u5f53\u65b0\u5efa\u6216\u91cd\u6784\u5b8c\u6210\u540e\uff0c\u518d\u6b21\u67e5\u770b\/proc\/mdstat\u6587\u4ef6: <\/p>\n
# more \/proc\/mdstat <\/p>\n
Personalities : [raid5] <\/p>\n
md0 : active raid5 sdd1[2] sde1[3] sdc1[1] sdb1[0] <\/p>\n
75469842 blocks level 5, 128k chunk, algorithm 2 [3\/3] [UUU] <\/p>\n
unused devices: <\/p>\n
\u901a\u8fc7\u4ee5\u4e0a\u5185\u5bb9\uff0c\u53ef\u4ee5\u5f88\u6e05\u695a\u5730\u770b\u51fa\u5f53\u524d\u9635\u5217\u7684\u72b6\u6001\uff0c\u5404\u90e8\u5206\u6240\u4ee3\u8868\u7684\u610f\u601d\u5982\u4e0b\uff1a\u201c[3\/3]\u201d\u4e2d\u7684\u7b2c\u4e00\u4f4d\u6570\u8868\u793a\u9635\u5217\u6240\u5305\u542b\u7684\u8bbe\u5907\u6570\uff0c\u7b2c\u4e8c\u4f4d\u6570\u8868\u793a\u6d3b\u52a8\u7684\u8bbe\u5907\u6570\uff0c\u5982\u679c\u6709\u4e00\u4e2a\u8bbe\u5907\u635f\u574f\uff0c\u5219\u7b2c\u4e8c\u4f4d\u6570\u5c06\u51cf1\uff1b\u201c[UUU]\u201d\u6807\u8bb0\u5f53\u524d\u9635\u5217\u53ef\u4ee5\u6b63\u5e38\u4f7f\u7528\u7684\u8bbe\u5907\u60c5\u51b5\uff0c\u73b0\u5047\u8bbe\/dev\/sdb1\u51fa\u73b0\u6545\u969c\uff0c\u5219\u8be5\u6807\u8bb0\u5c06\u53d8\u6210[_UU]\uff0c\u8fd9\u65f6\u7684\u9635\u5217\u4ee5\u964d\u7ea7\u6a21\u5f0f\u8fd0\u884c\uff0c\u5373\u8be5\u9635\u5217\u4ecd\u7136\u53ef\u7528\uff0c\u4f46\u662f\u4e0d\u518d\u5177\u6709\u4efb<\/p>\n","protected":false},"excerpt":{"rendered":"
RAID\u7b80\u4ecb RAID\u662f\u5197\u4f59\u78c1\u76d8\u9635\u5217\uff08Redundant Array of Inexpensive Disk\uff09 […]<\/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":[26],"class_list":["post-68","post","type-post","status-publish","format-standard","hentry","category-linux","tag-linux"],"_links":{"self":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts\/68","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=68"}],"version-history":[{"count":0,"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts\/68\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=68"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=68"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=68"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}