{"id":3035,"date":"2012-05-11T09:38:00","date_gmt":"2012-05-11T01:38:00","guid":{"rendered":""},"modified":"2012-05-11T09:38:00","modified_gmt":"2012-05-11T01:38:00","slug":"","status":"publish","type":"post","link":"https:\/\/www.homejamesfinance.com\/p\/3035.html","title":{"rendered":"\u7cbe\u534e\u5e16\u63a8\u8350\uff1aRAID\u6280\u672f\u57fa\u7840\u77e5\u8bc6\u89e3\u6790"},"content":{"rendered":"<p>RAID\u5df2\u7ecf\u662f\u4e00\u79cd\u5728\u670d\u52a1\u5668\u4e0a\u5e7f\u6cdb\u5e94\u7528\u7684\u78c1\u76d8\u6280\u672f\uff0c\u78c1\u76d8\u9635\u5217(Redundant Arrays of Inexpensive  Disks\uff0cRAID)\u6709&ldquo;\u4ef7\u683c\u4fbf\u5b9c\u4e14\u591a\u4f59\u7684\u78c1\u76d8\u9635\u5217&rdquo;\u4e4b\u610f\uff0c\u539f\u7406\u662f\u5229\u7528\u6570\u7ec4\u65b9\u5f0f\u6765\u4f5c\u78c1\u76d8\u7ec4\uff0c\u914d\u5408\u6570\u636e\u5206\u6563\u6392\u5217\u7684\u8bbe\u8ba1\uff0c\u63d0\u5347\u6570\u636e\u7684\u5b89\u5168\u6027\u3002<\/p>\n<p>\u78c1\u76d8\u9635\u5217\u662f\u7531\u5f88\u591a\u4fbf\u5b9c\u3001\u5bb9\u91cf\u8f83\u5c0f\u3001\u7a33\u5b9a\u6027\u8f83\u9ad8\u3001\u901f\u5ea6\u8f83\u6162\u78c1\u76d8\uff0c\u7ec4\u5408\u6210\u4e00\u4e2a\u5927\u578b\u7684\u78c1\u76d8\u7ec4\uff0c\u5229\u7528\u4e2a\u522b\u78c1\u76d8\u63d0\u4f9b\u6570\u636e\u6240\u4ea7\u751f\u52a0\u6210\u6548\u679c\u63d0\u5347\u6574\u4e2a\u78c1\u76d8\u7cfb\u7edf\u6548\u80fd\u3002\u540c\u65f6\u5229\u7528\u8fd9\u9879\u6280\u672f\uff0c\u5c06\u6570\u636e\u5207\u5272\u6210\u8bb8\u591a\u533a\u6bb5\uff0c\u5206\u522b\u5b58\u653e\u5728\u5404\u4e2a\u786c\u76d8\u4e0a\u3002\u78c1\u76d8\u9635\u5217\u8fd8\u80fd\u5229\u7528\u540c\u4f4d\u68c0\u67e5(Parity  Check)\u7684\u89c2\u5ff5\uff0c\u5728\u6570\u7ec4\u4e2d\u4efb\u4e00\u9897\u786c\u76d8\u6545\u969c\u65f6\uff0c\u4ecd\u53ef\u8bfb\u51fa\u6570\u636e\uff0c\u5728\u6570\u636e\u91cd\u6784\u65f6\uff0c\u5c06\u6570\u636e\u7ecf\u8ba1\u7b97\u540e\u91cd\u65b0\u7f6e\u5165\u65b0\u786c\u76d8\u4e2d\u3002RAID\u6280\u672f\u5177\u4f53\u6709\u600e\u6837\u7684\u7279\u70b9?\u6709\u54ea\u4e9b\u7ea7\u522b?\u53c8\u5e38\u5e94\u7528\u4e8e\u54ea\u4e9b\u8bbe\u5907?CUer\u597d\u597d\u5148\u751f\u5728ChinaUnix\u793e\u533a\u4e2d\u53d1\u5e03\u4e86\u4e00\u7bc7&ldquo;RAID\u6280\u672f\u57fa\u7840\u77e5\u8bc6&rdquo;\u5e16\u5b50\uff0c\u4ee5\u4e0b\u5f15\u7528\u4e86\u8be5\u5e16\u5b50\u5185\u5bb9\uff1a<\/p>\n<p><strong>RAID\u6280\u672f\u57fa\u7840\u77e5\u8bc6<\/strong><\/p>\n<p>RAID\u4e3aRedundant Arrays of Independent  Disks\u7684\u7b80\u79f0\uff0c\u4e2d\u6587\u4e3a\u5ec9\u4ef7\u5197\u4f59\u78c1\u76d8\u9635\u5217\u3002\u57281987\u5e74\u7531\u7f8e\u56fd\u67cf\u514b\u83b1\u5927\u5b66\u63d0\u51faRAID(Redundant Arrayof Inexpensive  Disks)\u7406\u8bba\uff0c\u4f5c\u4e3a\u9ad8\u6027\u80fd\u7684\u5b58\u50a8\u7cfb\u7edf\uff0c\u5df3\u7ecf\u5f97\u5230\u4e86\u8d8a\u6765\u8d8a\u5e7f\u6cdb\u7684\u5e94\u7528\u3002RAID\u7684\u7ea7\u522b\u4eceRAID\u6982\u5ff5\u7684\u63d0\u51fa\u5230\u73b0\u5728\uff0c\u5df3\u7ecf\u53d1\u5c55\u4e86\u591a\u4e2a\u7ea7\u522b\uff0c\u6709\u660e\u786e\u6807\u51c6\u7ea7\u522b\u5206\u522b\u662f0\u30011\u30012\u30013\u30014\u30015\u7b49\u3002\u4f46\u662f\u6700\u5e38\u7528\u7684\u662f0\u30011\u30013\u30015\u56db\u4e2a\u7ea7\u522b\u3002\u5176\u4ed6\u8fd8\u67096\u30017\u300110\u300130\u300150\u7b49\u3002RAID\u4e3a\u4f7f\u7528\u8005\u964d\u4f4e\u4e86\u6210\u672c\u3001\u589e\u52a0\u4e86\u6267\u884c\u6548\u7387\uff0c\u5e76\u63d0\u4f9b\u4e86\u7cfb\u7edf\u8fd0\u884c\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n<p>\u6807\u51c6\u7684RAID\u5199\u64cd\u4f5c\uff0c\u5305\u62ec\u5982\uff1aRAID4\u6216RAID5\u4e2d\u6240\u5fc5\u9700\u7684\u6821\u9a8c\u8ba1\u7b97\uff0c\u9700\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a<\/p>\n<p>(1)\u4ee5\u6821\u9a8c\u76d8\u4e2d\u8bfb\u53d6\u6570\u636e<\/p>\n<p>(2)\u4ee5\u76ee\u6807\u6570\u636e\u76d8\u4e2d\u8bfb\u53d6\u6570\u636e<\/p>\n<p>(3)\u4ee5\u65e7\u6821\u9a8c\u6570\u636e\uff0c\u65b0\u6570\u636e\u53ca\u5df2\u5b58\u5728\u6570\u636e\uff0c\u751f\u6210\u65b0\u7684\u6821\u9a8c\u6570\u636e<\/p>\n<p>(4)\u5c06\u65b0\u6821\u9a8c\u6570\u636e\u5199\u5165\u6821\u9a8c\u76d8<\/p>\n<p>(5)\u5c06\u65b0\u6570\u636e\u5199\u5165\u76ee\u6807\u6570\u636e\u76d8<\/p>\n<p>\u5f53\u4e3b\u673a\u5c06\u4e00\u4e2a\u5f85\u5199\u5165\u9635\u5217RAID\u7ec4\u4e2d\u7684\u6570\u636e\u53d1\u9001\u5230\u9635\u5217\u65f6\uff0c\u9635\u5217\u63a7\u5236\u5668\u5c06\u8be5\u6570\u636e\u4fdd\u5b58\u5728\u7f13\u5b58\u4e2d\u5e76\u7acb\u5373\u62a5\u544a\u4e3b\u673a\u8be5\u6570\u636e\u7684\u5199\u5165\u5de5\u4f5c\u5df2\u5b8c\u6210\u3002\u8be5\u6570\u636e\u5199\u5165\u5230\u9635\u5217\u786c\u76d8\u7684\u5de5\u4f5c\u7531\u9635\u5217\u63a7\u5236\u5668\u5b8c\u6210\uff0c\u8be5\u6570\u636e\u53ef\u7ee7\u7eed\u5b58\u653e\u5728Cache\u4e2d\u76f4\u5230Cache\u6ee1\uff0c\u800c\u4e14\u8981\u4e3a\u65b0\u6570\u636e\u817e\u51fa\u7a7a\u95f4\u800c\u5fc5\u987b\u5237\u65b0\u65f6\u6216\u9635\u5217\u9700\u505c\u673a\u65f6\uff0c\u63a7\u5236\u5668\u4f1a\u53ca\u65f6\u5c06\u8be5\u6570\u636e\u4ece  Cache\u5199\u5165\u9635\u5217\u786c\u76d8\u4e2d\u3002<\/p>\n<p>\u8fd9\u79cd\u7f13\u5b58\u56de\u5199\u6280\u672f\u4f7f\u5f97\u4e3b\u673a\u4e0d\u5fc5\u7b49\u5f85RAID\u6821\u9a8c\u8ba1\u7b97\u8fc7\u7a0b\u7684\u5b8c\u6210\uff0c\u5373\u53ef\u5904\u7406\u4e0b\u4e00\u4e2a\u8bfb\u5199\u4efb\u52a1\uff0c\u8fd9\u6837\uff0c\u4e3b\u673a\u7684\u8bfb\u5199\u6548\u7387\u5927\u4e3a\u589e\u52a0\u3002\u5f53\u4e3b\u673a\u547d\u4ee4\u5c06\u4e00\u4e2a\u6570\u636e\u5199\u5165\u786c\u76d8\uff0c\u5219\u9635\u5217\u63a7\u5236\u5668\u5c06\u8be5\u6570\u636e\u5199\u5165\u7f13\u5b58\u6700\u4e0a\u9762\u7684\u4f4d\u7f6e\uff0c\u53ea\u6709\u65b0\u6570\u636e\u624d\u4f1a\u88ab\u63a7\u5236\u5668\u6309Write-Back  Cache\u7684\u65b9\u5f0f\u6700\u540e\u5199\u5165\u786c\u76d8\u3002<\/p>\n<p><strong>RAID\u7ea7\u522b<\/strong><\/p>\n<p><strong>NRAID\uff1a<\/strong><\/p>\n<p>\u786c\u76d8\u8fde\u7eed\u4f7f\u7528\u3002NRAID\u610f\u601d\u662f\u4e0d\u4f7f\u7528RAID\u529f\u80fd\u3002\u5b83\u4f7f\u7528\u786c\u76d8\u7684\u603b\u5bb9\u91cf\u7ec4\u6210\u903b\u8f91\u789f(\u4e0d\u4f7f\u7528\u6761\u5757\u8bfb\u5199)\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5b83\u751f\u6210\u7684\u903b\u8f91\u789f\u5bb9\u91cf\u5c31\u662f\u7269\u7406\u789f\u5bb9\u91cf\u7684\u603b\u548c\u3002\u6b64\u5916\uff0cNRAID\u4e0d\u63d0\u4f9b\u8d44\u6599\u7684\u5907\u4f59\u3002<\/p>\n<p><strong>JBOD\uff1a<\/strong><\/p>\n<p>JBOD\u7684\u542b\u610f\u662f\u63a7\u5236\u5668\u5c06\u673a\u5668\u4e0a\u6bcf\u9897\u786c\u76d8\u90fd\u5f53\u4f5c\u5355\u72ec\u7684\u786c\u76d8\u5904\u7406\uff0c\u56e0\u6b64\u6bcf\u9897\u786c\u76d8\u90fd\u88ab\u5f53\u4f5c\u5355\u9897\u72ec\u7acb\u7684\u903b\u8f91\u789f\u4f7f\u7528\u3002\u6b64\u5916\uff0cJBOD\u5e76\u4e0d\u63d0\u4f9b\u8d44\u6599\u5907\u4f59\u7684\u529f\u80fd\u3002<\/p>\n<p><strong>RAID0\uff1aRAID 0 &#8211; Disk Stripping without parity (\u5e38\u7528)<\/strong><\/p>\n<p>\u53c8\u79f0\u6570\u636e\u5206\u5757\uff0c\u5373\u628a\u6570\u636e\u5206\u6210\u82e5\u5e72\u76f8\u7b49\u5927\u5c0f\u7684\u5c0f\u5757\uff0c\u5e76\u628a\u5b83\u4eec\u5199\u5230\u9635\u5217\u4e0a\u4e0d\u540c\u7684\u786c\u76d8\u4e0a\uff0c\u8fd9\u79cd\u6280\u672f\u53c8\u79f0\u201cStripping\u201d(\u5373\u5c06\u6570\u636e\u6761\u5e26\u5316)\uff0c\u8fd9\u79cd\u628a\u6570\u636e\u5206\u5e03\u5728\u591a\u4e2a\u76d8\u4e0a\uff0c\u5728\u8bfb\u5199\u65f6\u662f\u4ee5\u5e76\u884c\u7684\u65b9\u5f0f\u5bf9\u5404\u786c\u76d8\u540c\u65f6\u8fdb\u884c\u64cd\u4f5c\u3002\u4ece\u7406\u8bba\u4e0a\u8bb2\uff0c\u5176\u5bb9\u91cf\u548c\u6570\u636e\u4f20\u8f93\u7387\u662f\u5355\u4e2a\u786c\u76d8\u7684N\u500d\u3002N\u4e3a\u6784\u6210RAID0\u7684\u786c\u76d8\u603b\u6570\u3002\u5f53 \u7136\uff0c\u82e5\u9635\u5217\u63a7\u5236\u5668\u6709\u591a\u4e2a\u786c\u76d8\u901a\u9053\u65f6\uff0c\u5bf9\u591a\u4e2a\u901a\u9053\u4e0a\u7684\u786c\u76d8\u8fdb\u884cRAID0\u64cd\u4f5c\uff0cI\/O\u6027\u80fd\u4f1a\u66f4\u9ad8\u3002\u56e0\u6b64\u5e38\u7528\u4e8e\u56fe\u8c61\uff0c\u89c6\u9891\u7b49\u9886\u57df\uff0cRAID0  I\/O\u4f20\u8f93\u7387\u8f83\u9ad8\uff0c\u4f46\u5e73\u5747\u6545\u969c\u65f6\u95f4MTTF\u53ea\u6709\u5355\u76d8\u7684N\u5206\u4e4b\u4e00\uff0c\u56e0\u6b64RAID0\u53ef\u9760\u6027\u6700\u5dee\u3002<\/p>\n<p><strong>RAID1\uff1aRAID 1 &#8211; Disk Mirroring(\u8f83\u5e38\u7528)<\/strong><\/p>\n<p>\u53c8\u79f0\u955c\u50cf\u3002\u5373\u6bcf\u4e2a\u5de5\u4f5c\u76d8\u90fd\u6709\u4e00\u4e2a\u955c\u50cf\u76d8\uff0c\u6bcf\u6b21\u5199\u6570\u636e\u65f6\u5fc5\u987b\u540c\u65f6\u5199\u5165\u955c\u50cf\u76d8\uff0c\u8bfb\u6570\u636e\u65f6\u53ea\u4ece\u5de5\u4f5c\u76d8\u8bfb\u51fa\uff0c\u4e00\u65e6\u5de5\u4f5c\u76d8\u53d1\u751f\u6545\u969c\u7acb\u5373\u8f6c\u5165\u955c\u50cf\u76d8\uff0c\u4ece\u955c\u50cf\u76d8\u4e2d \u8bfb\u51fa\u6570\u636e\u3002\u5f53\u66f4\u6362\u6545\u969c\u76d8\u540e\uff0c\u6570\u636e\u53ef\u4ee5\u91cd\u6784\uff0c\u6062\u590d\u5de5\u4f5c\u76d8\u6b63\u786e\u6570\u636e\uff0c\u8fd9\u79cd\u9635\u5217\u53ef\u9760\u6027\u5f88\u9ad8\uff0c\u4f46\u5176\u6709\u6548\u5bb9\u91cf\u51cf\u5c0f\u5230\u603b\u5bb9\u91cf\u4e00\u534a\u4ee5\u4e0b\uff0c\u56e0\u6b64RAID1\u5e38\u7528\u4e8e\u5bf9\u5bb9\u9519\u8981\u6c42 \u6781\u4e25\u7684\u5e94\u7528\u573a\u5408\uff0c\u5982\u8d22\u653f\u3001\u91d1\u878d\u7b49\u9886\u57df\u3002<\/p>\n<p><strong>RAID (0+1)\uff1a<\/strong><\/p>\n<p>\u7ed3\u5408\u4e86RAID 0 \u548c RAID  1\u2014\u6761\u5757\u5316\u8bfb\u5199\u7684\u540c\u65f6\u4f7f\u7528\u955c\u50cf\u64cd\u4f5c\u3002RAID(0+1)\u5141\u8bb8\u591a\u4e2a\u786c\u76d8\u635f\u574f\uff0c\u56e0\u4e3a\u5b83\u5b8c\u5168\u4f7f\u7528\u786c\u76d8\u6765\u5b9e\u73b0\u8d44\u6599\u5907\u4f59\u3002\u5982\u679c\u6709\u8d85\u8fc7\u4e24\u4e2a\u786c\u76d8\u505aRAID 1\uff0c\u7cfb\u7edf\u4f1a\u81ea\u52a8\u5b9e\u73b0RAID  (0+1)\u3002<\/p>\n<p><strong>RAID2\uff1a<\/strong><\/p>\n<p>\u53c8\u79f0\u4f4d\u4ea4\u53c9\uff0c\u5b83\u91c7\u7528\u6c49\u660e\u7801\u4f5c\u76d8\u9519\u6821\u9a8c\uff0c\u91c7\u7528\u6309\u4f4d\u4ea4\u53c9\u5b58\u53d6\uff0c\u8fd0\u7528\u4e8e\u5927\u6570\u636e\u7684\u8bfb\u5199\uff0c\u4f46\u5197\u4f59\u4fe1\u606f\u5f00\u9500\u592a\u5927(\u6821\u9a8c\u76d8\u4e3a\u591a\u4e2a)\uff0c\u5df2\u88ab\u6dd8\u6c70\u3002<\/p>\n<p><strong>RAID3\uff1aRAID 3 &#8211; Parallel Disk Array<\/strong><\/p>\n<p>\u4e3a\u5355\u76d8\u5bb9\u9519\u5e76\u884c\u4f20\u8f93\u3002\u5373\u91c7\u7528Stripping\u6280\u672f\u5c06\u6570\u636e\u5206\u5757\uff0c\u5bf9\u8fd9\u4e9b\u5757\u8fdb\u884c\u5f02\u6216\u6821\u9a8c\uff0c\u6821\u9a8c\u6570\u636e\u5199\u5230\u6700\u540e\u4e00\u4e2a\u786c\u76d8\u4e0a\u3002\u5b83\u7684\u7279\u70b9\u662f\u6709\u4e00\u4e2a\u76d8\u4e3a\u6821\u9a8c\u76d8\uff0c \u6570\u636e\u4ee5\u4f4d\u6216\u5b57\u8282\u7684\u65b9\u5f0f\u5b58\u4e8e\u5404\u76d8(\u5206\u6563\u8bb0\u5f55\u5728\u7ec4\u5185\u76f8\u540c\u6247\u533a\u7684\u5404\u4e2a\u786c\u76d8\u4e0a)\u3002\u5f53\u4e00\u4e2a\u786c\u76d8\u53d1\u751f\u6545\u969c\uff0c\u9664\u6545\u969c\u76d8\u5916\uff0c\u5199\u64cd\u4f5c\u5c06\u7ee7\u7eed\u5bf9\u6570\u636e\u76d8\u548c\u6821\u9a8c\u76d8\u8fdb\u884c\u64cd\u4f5c\u3002\u800c\u8bfb\u64cd \u4f5c\u662f\u901a\u8fc7\u5bf9\u5269\u4f59\u6570\u636e\u76d8\u548c\u6821\u9a8c\u76d8\u7684\u5f02\u6216\u8ba1\u7b97\u91cd\u6784\u6545\u969c\u76d8\u4e0a\u5e94\u6709\u7684\u6570\u636e\u6765\u8fdb\u884c\u7684\u3002RAID3\u7684\u4f18\u70b9\u662f\u5e76\u884cI\/O\u4f20\u8f93\u548c\u5355\u76d8\u5bb9\u9519\uff0c\u5177\u6709\u5f88\u9ad8\u53ef\u9760\u6027\u3002\u7f3a\u70b9\uff1a\u6bcf\u6b21\u8bfb\u5199 \u8981\u7275\u52a8\u6574\u4e2a\u7ec4\uff0c\u6bcf\u6b21\u53ea\u80fd\u5b8c\u6210\u4e00\u6b21I\/O\u3002<\/p>\n<p><strong>RAID4\uff1a<\/strong><\/p>\n<p>\u4e0eRAID3\u76f8\u4f3c\uff0c\u533a\u522b\u662f\uff1aRAID3\u662f\u6309\u4f4d\u6216\u5b57\u8282\u4ea4\u53c9\u5b58\u53d6\uff0c\u800c  RAID4\u662f\u6309\u5757(\u6247\u533a)\u5b58\u53d6\uff0c\u53ef\u4ee5\u5355\u72ec\u5730\u5bf9\u67d0\u4e2a\u76d8\u8fdb\u884c\u64cd\u4f5c\uff0c\u65e0\u987b\u50cfRAID3\u90a3\u6837\uff0c\u54ea\u6015\u6bcf\u4e00\u6b21\u5c0fI\/O\u64cd\u4f5c\u4e5f\u8981\u6d89\u53ca\u5168\u7ec4\uff0c\u53ea\u9700\u6d89\u53ca\u7ec4\u4e2d\u4e24\u5757\u786c\u76d8(\u4e00\u5757\u6570 \u636e\u76d8\uff0c\u4e00\u5757\u6821\u9a8c\u76d8)\u5373\u53ef\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u5c0f\u91cf\u6570\u636eI\/O\u901f\u5ea6\u3002\u7f3a\u70b9\uff1a\u5bf9\u4e8e\u968f\u673a\u5206\u6563\u7684\u5c0f\u6570\u636e\u91cfI\/O\uff0c\u56fa\u5b9a\u7684\u6821\u9a8c\u76d8\u53c8\u6210\u4e3aI\/O\u74f6\u9888\uff0c\u4f8b\u5982\uff1a\u4e8b\u52a1\u5904\u7406\u3002\u4f5c\u4e24\u4e2a\u5f88 \u5c0f\u7684\u5199\u64cd\u4f5c\uff0c\u4e00\u4e2a\u5199\u5728drive2\u7684stripe1  \u4e0a\uff0c\u4e00\u4e2a\u5199\u5728drive3\u7684stripe2\u4e0a\uff0c\u5b83\u4eec\u90fd\u8981\u5f80\u6821\u9a8c\u76d8\u4e0a\u5199\uff0c\u6240\u4ee5\u53d1\u751f\u4e89\u7528\u6821\u9a8c\u76d8\u7684\u95ee\u9898\u3002<\/p>\n<p><strong>RAID5\uff1aRAID 5 &#8211; Striping with floating parity drive(\u6700\u5e38\u7528)<\/strong><\/p>\n<p>\u662f\u4e00\u79cd\u65cb\u8f6c\u5947\u5076\u6821\u9a8c\u72ec\u7acb\u5b58\u53d6\u7684\u9635\u5217\u65b9\u5f0f\uff0c\u5b83\u4e0eRAID3\uff0cRAID4\u4e0d\u540c\u7684\u662f\u6ca1\u6709\u56fa\u5b9a\u7684\u6821\u9a8c\u76d8\uff0c\u800c\u662f\u6309\u67d0\u79cd\u89c4\u5219\u628a\u5947\u5076\u6821\u9a8c\u4fe1\u606f\u5747\u5300\u5730\u5206\u5e03\u5728\u9635\u5217\u6240\u5c5e \u7684\u786c\u76d8\u4e0a\uff0c\u6240\u4ee5\u5728\u6bcf\u5757\u786c\u76d8\u4e0a\uff0c\u65e2\u6709\u6570\u636e\u4fe1\u606f\u4e5f\u6709\u6821\u9a8c\u4fe1\u606f\u3002\u8fd9\u4e00\u6539\u53d8\u89e3\u51b3\u4e86\u4e89\u7528\u6821\u9a8c\u76d8\u7684\u95ee\u9898\uff0c\u4f7f\u5f97\u5728\u540c\u4e00\u7ec4\u5185\u5e76\u53d1\u8fdb\u884c\u591a\u4e2a\u5199\u64cd\u4f5c\u3002\u6240\u4ee5RAID5\u5373\u9002\u7528\u4e8e\u5927 \u6570\u636e\u91cf\u7684\u64cd\u4f5c\uff0c\u4e5f\u9002\u7528\u4e8e\u5404\u79cd\u4e8b\u52a1\u5904\u7406\uff0c\u5b83\u662f\u4e00\u79cd\u5feb\u901f\u3001\u5927\u5bb9\u91cf\u548c\u5bb9\u9519\u5206\u5e03\u5408\u7406\u7684\u78c1\u76d8\u9635\u5217\u3002\u5f53\u6709N\u5757\u9635\u5217\u76d8\u65f6\uff0c\u7528\u6237\u7a7a\u95f4\u4e3aN-1\u5757\u76d8\u5bb9\u91cf\u3002<\/p>\n<p>RAID3\u3001RAID5\u4e2d\uff0c\u5728\u4e00\u5757\u786c\u76d8\u53d1\u751f\u6545\u969c\u540e\uff0cRAID\u7ec4\u4eceONLINE\u53d8\u4e3aDEGRADED\u65b9\u5f0f\uff0c\u4f46I\/O\u8bfb\u5199\u4e0d\u53d7\u5f71\u54cd\uff0c\u76f4\u5230\u6545\u969c\u76d8\u6062\u590d\u3002\u4f46\u5982\u679cDEGRADED\u72b6\u6001\u4e0b\uff0c\u53c8\u6709\u7b2c\u4e8c\u5757\u76d8\u6545\u969c\uff0c\u6574\u4e2aRAID\u7ec4\u7684\u6570\u636e\u5c06\u4e22\u5931\u3002<\/p>\n<p><strong>RAID\u6280\u672f\u7684\u5e94\u7528<\/strong><\/p>\n<p><strong>DAS&#8211;direct access storage device\u76f4\u63a5\u8bbf\u95ee\u5b58\u50a8\u8bbe\u5907<\/strong><\/p>\n<p>DAS\u662f\u78c1\u76d8\u5b58\u50a8\u8bbe\u5907\u7684\u672f\u8bed\uff0c\u4ee5\u524d\u88ab\u7528\u5728\u5927\u3001\u4e2d\u578b\u673a\u4e0a\u3002\u4f7f\u7528\u5728PC\u673a\u4e0a\u8fd8\u5305\u62ec\u786c\u76d8\u8bbe\u5907DAS\u7684\u6700\u65b0\u5f62\u5f0f\u662fRAID\u3002\u201c\u76f4\u63a5\u8bbf\u95ee\u201d\u6307\u8bbf\u95ee\u6240\u6709\u6570\u636e\u7684\u65f6\u95f4\u662f\u76f8\u540c\u7684\u3002<\/p>\n<p><strong>NAS&#8211;Network Attached Storage\u7f51\u7edc\u9644\u52a0\u5b58\u50a8\u8bbe\u5907<\/strong><\/p>\n<p>\u4e00\u79cd\u7279\u6b8a\u76ee\u7684\u7684\u670d\u52a1\u5668,\u5b83\u5177\u6709\u5d4c\u5165\u5f0f\u7684\u8f6f\u4ef6\u7cfb\u7edf,\u53ef\u4ee5\u901a\u8fc7\u7f51\u7edc\u5bf9\u4e2a\u79cd\u7684\u7cfb\u7edf\u5e73\u53f0\u63d0\u4f9b\u6587\u4ef6\u5171\u4eab\u670d\u52a1\u3002<\/p>\n<p><strong>SAN&#8211;Storage Area Networks\u5b58\u50a8\u533a\u57df\u7f51<\/strong><\/p>\n<p>\u4e00\u79cd\u9ad8\u901f\u7684\u4e13\u7528\u7f51\u7edc\uff0c\u7528\u4e8e\u5efa\u7acb\u670d\u52a1\u5668\u3001\u78c1\u76d8\u9635\u5217\u548c\u78c1\u5e26\u5e93\u4e4b\u95f4\u7684\u4e00\u79cd\u76f4\u63a5\u8054\u63a5\u3002\u5b83\u5982\u540c\u6269\u5c55\u7684\u5b58\u50a8\u5668\u603b\u7ebf\uff0c\u5c06\u4e13\u7528\u7684\u96c6\u7ebf\u5668\u3001\u4ea4\u6362\u5668\u4ee5\u53ca\u7f51\u5173\u6216\u6865\u8def\u4e92\u76f8\u8fde \u63a5\u5728\u4e00\u8d77\u3002SAN\u5e38\u4f7f\u7528\u5149\u7ea4\u901a\u9053\u3002\u4e00\u4e2aSAN\u53ef\u4ee5\u662f\u672c\u5730\u7684\u6216\u8005\u662f\u8fdc\u7a0b\u7684\uff0c\u4e5f\u53ef\u4ee5\u662f\u5171\u4eab\u7684\u6216\u8005\u662f\u4e13\u7528\u7684\u3002SAN\u6253\u7834\u4e86\u5b58\u50a8\u5668\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u675f\u7f1a\uff0c\u5141\u8bb8\u4f60\u72ec\u7acb \u5730\u9009\u62e9\u6700\u4f73\u7684\u5b58\u50a8\u5668\u6216\u8005\u662f\u6700\u4f73\u7684\u670d\u52a1\u5668\uff0c\u4ece\u800c\u63d0\u9ad8\u53ef\u6269\u6027\u548c\u7075\u6d3b\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>RAID\u5df2\u7ecf\u662f\u4e00\u79cd\u5728\u670d\u52a1\u5668\u4e0a\u5e7f\u6cdb\u5e94\u7528\u7684\u78c1\u76d8\u6280\u672f\uff0c\u78c1\u76d8\u9635\u5217(Redundant Arrays of Inexpensive Disks\uff0cRAID)\u6709&ldquo;\u4ef7\u683c\u4fbf\u5b9c\u4e14\u591a\u4f59\u7684\u78c1\u76d8\u9635\u5217&rdquo;\u4e4b\u610f\uff0c\u539f\u7406\u662f\u5229\u7528\u6570\u7ec4\u65b9\u5f0f\u6765\u4f5c\u78c1\u76d8\u7ec4\uff0c\u914d\u5408\u6570&#8230;<\/p>\n","protected":false},"author":126,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[3692,4629,3710,4321,4250],"topic":[],"class_list":["post-3035","post","type-post","status-publish","format-standard","hentry","category-tech","tag-RAID","tag-rongyu","tag-beifen","tag-zainanbeifen","tag-cipanzhenlie"],"_links":{"self":[{"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/posts\/3035"}],"collection":[{"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/users\/126"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/comments?post=3035"}],"version-history":[{"count":0,"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/posts\/3035\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/media?parent=3035"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/categories?post=3035"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/tags?post=3035"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.homejamesfinance.com\/wp-json\/wp\/v2\/topic?post=3035"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<a href="http://www.homejamesfinance.com/">&#x7CBE;&#x54C1;&#x56FD;&#x4EA7;&#x5348;&#x591C;&#x8089;&#x4F26;&#x4F26;&#x5F71;&#x9662;,&#x53CC;&#x6027;&#x8001;&#x5E08;&#x704C;&#x6EE1;&#x6D53;jing&#x4E0A;&#x8BFE;h,&#x5929;&#x5929;&#x505A;&#x5929;&#x5929;&#x7231;&#x591C;&#x591C;&#x723D;,&#x6535;&#x5973;&#x4E71;h&#x8FB9;&#x505A;&#x8FB9;&#x8D70;</a>
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