\u5355\u9a71\u52a8\u5668\u6545\u969c\u7684\u6062\u590d\u7a0b\u5e8f<\/strong><\/h2>\n

\u5728\u5904\u7406\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u7684\u5355\u9a71\u52a8\u5668\u6545\u969c\u65f6\uff0c\u65f6\u95f4\u81f3\u5173\u91cd\u8981\u3002\u8bf7\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n

\n
1. \u8bc6\u522b\u6545\u969c\u9a71\u52a8\u5668\uff1a\n

   \r\n# Linux\u7cfb\u7edf\u9002\u7528\r\nmdadm --detail \/dev\/md0\r\n# \u786c\u4ef6RAID\u9002\u7528\r\nmegacli -PDList -aALL | grep \"Firmware state\"\r\n        <\/code><\/pre>\n<\/li>\n
   \u5982\u679c\u60a8\u7684\u7cfb\u7edf\u652f\u6301\uff0c\u70ed\u63d2\u62d4\u66f4\u6362\u6545\u969c\u9a71\u52a8\u5668<\/li>\n
   \u542f\u52a8\u9635\u5217\u91cd\u5efa\uff1a\n
   \r\n# \u5c06\u65b0\u9a71\u52a8\u5668\u6dfb\u52a0\u5230\u9635\u5217\r\nmdadm --add \/dev\/md0 \/dev\/sdX\r\n# \u76d1\u63a7\u91cd\u5efa\u8fdb\u5ea6\r\nwatch cat \/proc\/mdstat\r\n        <\/code><\/pre>\n<\/li>\n<\/ol>\n
   \u591a\u9a71\u52a8\u5668\u6545\u969c\u7684\u9ad8\u7ea7\u6062\u590d<\/strong><\/h2>\n
   \u591a\u9a71\u52a8\u5668\u6545\u969c\u9700\u8981\u4e13\u95e8\u7684\u5904\u7406\u65b9\u6cd5\u3002\u5728\u9999\u6e2f\u7684\u6570\u636e\u4e2d\u5fc3\uff0c\u6211\u4eec\u5df2\u6210\u529f\u5b9e\u65bd\u4ee5\u4e0b\u6062\u590d\u6280\u672f\uff1a<\/p>\n
   1. \u5f3a\u5236\u7ec4\u88c5\u65b9\u6cd5\uff08\u9700\u8c28\u614e\u4f7f\u7528\uff09\uff1a<\/p>\n
   \r\nmdadm --assemble --force \/dev\/md0 \/dev\/sd[bcde]\r\nmdadm --run \/dev\/md0\r\n<\/code><\/pre>\n
   2. \u6062\u590d\u524d\u7684\u78c1\u76d8\u6620\u50cf\uff1a<\/p>\n
   \r\n# \u521b\u5efa\u5b57\u8282\u7ea7\u78c1\u76d8\u6620\u50cf\r\ndd if=\/dev\/sdb of=\/path\/to\/backup\/disk1.img bs=4M status=progress\r\n# \u6302\u8f7d\u6620\u50cf\u4ee5\u4f9b\u68c0\u67e5\r\nmount -o loop,ro disk1.img \/mnt\/test\r\n<\/code><\/pre>\n
   \u57fa\u4e8e\u8f6f\u4ef6\u7684\u6062\u590d\u5de5\u5177<\/strong><\/h2>\n
   \u5bf9\u4e8e\u9999\u6e2f\u670d\u52a1\u5668\u6258\u7ba1\u8bbe\u65bd\uff0c\u6211\u4eec\u63a8\u8350\u4ee5\u4e0b\u4f01\u4e1a\u7ea7\u6062\u590d\u5de5\u5177\uff1a<\/p>\n
   \n
   TestDisk\uff1a\u5f00\u6e90\u6062\u590d\u5957\u4ef6\n
   \r\n# TestDisk\u57fa\u672c\u6062\u590d\u547d\u4ee4\r\ntestdisk \/dev\/md0\r\n# \u9ad8\u7ea7\u626b\u63cf\u9009\u9879\r\ntestdisk --disk_only --enable-sudo \/dev\/md0\r\n        <\/code><\/pre>\n<\/li>\n
   ddrescue\uff1a\u7528\u4e8e\u5177\u6709\u574f\u6247\u533a\u7684\u68d8\u624b\u60c5\u51b5\n
   \r\n# \u4e24\u904d\u6062\u590d\r\nddrescue -n \/dev\/sdb \/dev\/sdc logfile\r\nddrescue -r3 \/dev\/sdb \/dev\/sdc logfile\r\n        <\/code><\/pre>\n<\/li>\n<\/ul>\n
   \u9884\u9632\u63aa\u65bd\u548c\u76d1\u63a7<\/strong><\/h2>\n
   \u5728\u60a8\u7684\u6570\u636e\u4e2d\u5fc3\u5b9e\u65bd\u4ee5\u4e0b\u76d1\u63a7\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n
   \r\n# \u6dfb\u52a0\u5230crontab\u4ee5\u8fdb\u884c\u81ea\u52a8\u76d1\u63a7\r\n*\/30 * * * * \/usr\/local\/bin\/raid_health_check.sh\r\n\r\n# \u793a\u4f8b\u76d1\u63a7\u811a\u672c\r\n#!\/bin\/bash\r\nRAID_STATUS=$(mdadm --detail \/dev\/md0 | grep State)\r\nif [[ $RAID_STATUS != *\"clean\"* ]]; then\r\n    alert_admin \"\u68c0\u6d4b\u5230RAID\u9635\u5217\u95ee\u9898\"\r\nfi\r\n<\/code><\/pre>\n
   \u6062\u590d\u65f6\u95f4\u4f30\u7b97<\/strong><\/h2>\n
   \u57fa\u4e8e\u6211\u4eec\u5728\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u7684\u7ecf\u9a8c\uff0c\u5178\u578b\u6062\u590d\u65f6\u95f4\u4e3a\uff1a<\/p>\n
   \n
   \u5355\u9a71\u52a8\u5668\u6545\u969c\uff1a4-8\u5c0f\u65f6\uff081TB\u9a71\u52a8\u5668\uff09<\/li>\n
   \u591a\u9a71\u52a8\u5668\u6062\u590d\uff1a12-36\u5c0f\u65f6<\/li>\n
   \u63a7\u5236\u5668\u6545\u969c\uff1a2-4\u5c0f\u65f6<\/li>\n<\/ul>\n
   \u672a\u6765\u9884\u9632\u7684\u6700\u4f73\u5b9e\u8df5<\/strong><\/h2>\n
   \u5b9e\u65bd\u4ee5\u4e0b\u5173\u952e\u63aa\u65bd\uff1a<\/p>\n
   \n
   \u5b9a\u671fSMART\u76d1\u63a7<\/li>\n
   \u8ba1\u5212\u6027\u9635\u5217\u6e05\u7406<\/li>\n
   \u5197\u4f59\u63a7\u5236\u5668\u914d\u7f6e<\/li>\n
   \u4f01\u4e1a\u7ea7\u9a71\u52a8\u5668\u9009\u62e9<\/li>\n<\/ol>\n
   \u7ed3\u8bba<\/strong><\/h2>\n
   RAID 5\u6062\u590d\u9700\u8981\u6709\u6761\u7406\u7684\u65b9\u6cd5\u548c\u9002\u5f53\u7684\u6280\u672f\u4e13\u4e1a\u77e5\u8bc6\u3002\u5728\u9999\u6e2f\u7684\u6570\u636e\u4e2d\u5fc3\u73af\u5883\u4e2d\uff0c\u8fd0\u884c\u65f6\u95f4\u81f3\u5173\u91cd\u8981\uff0c\u62e5\u6709\u53ef\u9760\u7684\u6062\u590d\u7b56\u7565\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u8bf7\u8bb0\u4f4f\uff0c\u9664\u4e86RAID\u914d\u7f6e\u4e4b\u5916\uff0c\u8fd8\u8981\u7ef4\u62a4\u9002\u5f53\u7684\u5907\u4efd\u7cfb\u7edf\uff0c\u56e0\u4e3aRAID\u4e0d\u80fd\u66ff\u4ee3\u5168\u9762\u7684\u5907\u4efd\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n
   \u5bf9\u4e8e\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u7684\u5173\u952e\u6570\u636e\u6062\u590d\u573a\u666f\uff0c\u8bf7\u8003\u8651\u54a8\u8be2\u540c\u65f6\u4e86\u89e3\u5b58\u50a8\u7cfb\u7edf\u6545\u969c\u7684\u6280\u672f\u548c\u4e1a\u52a1\u5f71\u54cd\u7684\u8ba4\u8bc1\u6570\u636e\u6062\u590d\u4e13\u5bb6\u3002\u901a\u8fc7\u76d1\u63a7\u548c\u7ef4\u62a4\u4fdd\u6301\u4e3b\u52a8\u6027\uff0c\u4ee5\u6700\u5927\u7a0b\u5ea6\u5730\u51cf\u5c11RAID 5\u9635\u5217\u4e2d\u6570\u636e\u4e22\u5931\u7684\u98ce\u9669\u3002<\/p>\n
   [\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"
   [vc_row][vc_column][vc_column_text css=””] \u5728\u7ba1\u7406\u9999\u6e2f\u6570\u636e\u4e2d\u5fc3\u7684\u4f01\u4e1a\u7ea7\u5b58\u50a8\u65f6\uff0cRAID 5\u6545\u969c\u53ef\u80fd\u4f1a\u6beb\u65e0\u9884\u8b66\u5730\u53d1\u751f\u3002\u672c\u6280\u672f\u6307\u5357\u6df1\u5165\u63a2\u8ba8RAID 5\u6062\u590d\u7a0b\u5e8f\uff0c\u4e3a\u9762\u4e34\u6570\u636e\u4e22\u5931\u573a\u666f\u7684IT\u4e13\u4e1a\u4eba\u5458\u63d0\u4f9b\u7ecf\u8fc7\u5b9e\u6218\u68c0\u9a8c\u7684\u89e3\u51b3\u65b9\u6848\u3002\u65e0\u8bba\u60a8\u662f\u5904\u7406\u5355\u4e2a\u78c1\u76d8\u6545\u969c\u8fd8\u662f\u591a\u4e2a\u9a71\u52a8\u5668\u95ee\u9898\uff0c\u6211\u4eec\u90fd\u5c06\u63a2\u8ba8\u57fa\u4e8e\u8f6f\u4ef6\u548c\u786c\u4ef6\u5c42\u9762\u7684\u6062\u590d\u65b9\u6cd5\u3002 \u7406\u89e3RAID 5\u67b6\u6784 RAID 5\u5b9e\u73b0\u4e86\u5177\u6709\u5206\u5e03\u5f0f\u5947\u5076\u6821\u9a8c\u7684\u5757\u7ea7\u6761\u5e26\u5316\uff0c\u9700\u8981\u81f3\u5c11\u4e09\u4e2a\u9a71\u52a8\u5668\u624d\u80fd\u8fd0\u884c\u3002\u5947\u5076\u6821\u9a8c\u4fe1\u606f\u5728\u9635\u5217\u4e2d\u7684\u6240\u6709\u9a71\u52a8\u5668\u4e0a\u8fdb\u884c\u6761\u5e26\u5316\uff0c\u5141\u8bb8\u5355\u9a71\u52a8\u5668\u5bb9\u9519\u3002\u4ee5\u4e0b\u662f\u6570\u636e\u5206\u5e03\u7684\u6280\u672f\u7ec6\u8282\uff1a Disk 1: [A1] [B2] [Cp] [D4] Disk 2: [A2] [Bp] [C3] [D5] Disk 3: [Ap] [B3] [C4] [D6] Disk 4: [A3] [B4] [C5] [Dp] \u5728\u6b64\u8868\u793a\u4e2d\uff0c’p’\u8868\u793a\u5947\u5076\u6821\u9a8c\u5757\u3002\u7cfb\u7edf\u4f7f\u7528XOR\u8fd0\u7b97\u6765\u8ba1\u7b97\u5947\u5076\u6821\u9a8c\uff0c\u4f7f\u5f97\u5728\u9a71\u52a8\u5668\u53d1\u751f\u6545\u969c\u65f6\u80fd\u591f\u91cd\u5efa\u6570\u636e\u3002\u5947\u5076\u6821\u9a8c\u8ba1\u7b97\u516c\u5f0f\u53ef\u4ee5\u8868\u793a\u4e3a\uff1a Parity = Block1 XOR Block2 XOR Block3 Recovery = Parity XOR (remaining good blocks) \u5e38\u89c1\u6545\u969c\u573a\u666f \u73b0\u4ee3RAID 5\u5b9e\u73b0\u901a\u5e38\u4f1a\u9047\u5230\u4e09\u79cd\u4e3b\u8981\u6545\u969c\u6a21\u5f0f\uff1a \u9635\u5217\u8fd0\u884c\u65f6\u7684\u5355\u9a71\u52a8\u5668\u6545\u969c \u91cd\u5efa\u8fc7\u7a0b\u4e2d\u7684\u591a\u9a71\u52a8\u5668\u6027\u80fd\u964d\u7ea7 \u9a71\u52a8\u5668\u5b8c\u597d\u4f46\u63a7\u5236\u5668\u6545\u969c \u6062\u590d\u524d\u8bc4\u4f30\u534f\u8bae […]<\/p>\n
   Read More…<\/a><\/p>\n","protected":false},"author":2,"featured_media":22791,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[62],"tags":[6830,6831,6832,5241,353],"class_list":["post-22800","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hong-kong-dedicated-server-sc","tag-raid-5","tag-6831","tag-6832","tag-data-recovery-sc","tag-server-rental-sc"],"acf":[],"yoast_head":"\n