{"id":7452,"date":"2010-12-16T13:24:00","date_gmt":"2010-12-16T05:24:00","guid":{"rendered":""},"modified":"2010-12-16T13:24:00","modified_gmt":"2010-12-16T05:24:00","slug":"","status":"publish","type":"post","link":"https:\/\/www.homejamesfinance.com\/p\/7452.html","title":{"rendered":"\u5982\u4f55\u5728vSphere\u73af\u5883\u4e0b\u4f7f\u7528iSCSI\u5b58\u50a8\uff08\u4e0a\uff09"},"content":{"rendered":"

\u8bf4\u5230VMware vSphere\u7684\u67d0\u4e9b\u9ad8\u7ea7\u7279\u6027\uff0c\u6bd4\u5982VMotion\u3001fault tolerance\uff08\u5bb9\u9519\uff09\u3001high availability\uff08\u9ad8\u53ef\u7528\uff09\u4ee5\u53caVMware DRS\uff08Distributed Resource Scheduler\uff0c\u5206\u5e03\u5f0f\u8d44\u6e90\u8c03\u5ea6\uff09\u3002vSphere\u7684\u4e13\u5229\u6280\u672f–“VMFS\u6587\u4ef6\u7cfb\u7edf”——\u5177\u6709\u4e00\u79cd\u7279\u6b8a\u7684\u9501\u673a\u5236\uff0c\u5141\u8bb8\u591a\u53f0\u7269\u7406\u4e3b\u673a\u8fde\u63a5\u5230\u540c\u4e00\u4e2a\u5171\u4eab\u7684\u5b58\u50a8\u5377\uff0c\u5176\u4e0a\u7684\u865a\u62df\u673a\u4e5f\u53ef\u4ee5\u5171\u4eab\u5b58\u50a8\u7a7a\u95f4\u3002\u4e0d\u8fc7\uff0c\u4ece\u4f20\u7edf\u7684\u89d2\u5ea6\u6765\u8bf4\uff0c\u5b9e\u73b0\u5171\u4eab\u5b58\u50a8\u5377\u610f\u5473\u7740\u5fc5\u987b\u4f7f\u7528\u6602\u8d35\u7684\u5149\u7ea4\u901a\u9053\u7f51\u7edc\u57fa\u7840\u67b6\u6784, \u4e0d\u8fc7\u73b0\u5728\uff0ciSCSI\u548cNFS\u7f51\u7edc\u5b58\u50a8\u8bbe\u5907\u5df2\u7ecf\u6210\u4e3a\u4e86\u4e00\u79cd\u66f4\u7ecf\u6d4e\u7684\u9009\u62e9\u3002  <\/p>\n

\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4e3a\u60a8\u4ecb\u7ecd\u5982\u4f55\u5728vSphere\u73af\u5883\u4e2d\u6b63\u786e\u7684\u5b89\u88c5\u3001\u914d\u7f6eiSCSI\u5b58\u50a8\uff0c\u6211\u4eec\u4f1a\u5bf9\u8981\u70b9\u505a\u76f8\u5e94\u7684\u63d0\u793a\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e9b\u6700\u4f73\u5b9e\u8df5\u4f9b\u60a8\u53c2\u8003\u3002\u6b64\u5916\uff0c\u6211\u4eec\u5728\u4e0d\u540c\u7684\u914d\u7f6e\u73af\u5883\u4e0b\u505a\u4e86\u6027\u80fd\u6d4b\u8bd5\uff0c\u901a\u8fc7\u6bd4\u8f83\u8fd9\u4e9b\u6d4b\u8bd5\u7ed3\u679c\uff0c\u80fd\u591f\u5206\u6790\u51fa\u5404\u7c7b\u914d\u7f6e\u5bf9\u6027\u80fd\u7684\u5f71\u54cd\u3002<\/p>\n

VMware\u7684\u6d41\u884c\u4fc3\u8fdb\u4e86iSCSI\u7684\u666e\u53ca<\/strong><\/p>\n

\u7b2c\u4e00\u4e2a\u652f\u6301iSCSI\u7f51\u7edc\u5b58\u50a8\u7684VMware\u7248\u672c\u662f ESX 3.0\u3002\u5b83\u7684\u5185\u90e8\u96c6\u6210\u4e86\u4e00\u4e2a\u53eb\u505ainitiatior\uff08\u53d1\u8d77\u7aef\uff09\u7684\u5ba2\u6237\u7aef\u7a0b\u5e8f\uff0c\u901a\u8fc7\u5c40\u57df\u7f51\u5c06SCSI\u547d\u4ee4\u53d1\u9001\u5230\u5b58\u50a8\u88c5\u7f6e\u4e2d\u7684Target\uff08\u76ee\u6807\u7aef\uff09SCSI\u8bbe\u5907\u3002\u4e0e\u5149\u7ea4\u901a\u9053\u6280\u672f\u4e0d\u540c\uff0ciSCSI\u4f7f\u7528\u4f20\u7edf\u7684\u7f51\u7edc\u5143\u4ef6\u548c\u6807\u51c6\u7684TCP\/IP\u534f\u8bae\uff0c\u56e0\u6b64\u5b83\u4e0d\u9700\u8981\u7279\u6b8a\u7684\u7ebf\u7f06\u548c\u4ea4\u6362\u673a\u8bbe\u5907\u3002<\/p>\n

\u76ee\u524diSCSI\u7684initiator\uff08\u53d1\u8d77\u7aef\uff09\u53ef\u4ee5\u662f\u8f6f\u4ef6\u7a0b\u5e8f\uff0c\u4e5f\u53ef\u4ee5\u57fa\u4e8e\u786c\u4ef6\u3002\u8f6f\u4ef6initiator \u901a\u8fc7\u4f7f\u7528\u5185\u5efa\u4e8eVMkernel\u7684\u8bbe\u5907\u9a71\u52a8\uff0c\u5229\u7528\u7f51\u7edc\u9002\u914d\u5668\u548c\u4ee5\u592a\u7f51\u534f\u8bae\u5c06\u6570\u636e\u5199\u5230\u8fdc\u7aef\u7684iSCSI Target\uff08\u76ee\u6807\u7aef\uff09\u3002\u56e0\u6b64\u8f6f\u4ef6initiator \u7684\u4e00\u4e9b\u91cd\u8981\u7279\u5f81\u662f\uff1a<\/p>\n

\u4f7f\u7528\u4ee5\u592a\u7f51\u5361\u548c\u672c\u5730VMkernel iSCSI\u5806\u6808<\/p>\n

\u5bf9\u4e8e\u5200\u7247\u670d\u52a1\u5668\uff0c\u6216\u8005\u6269\u5c55\u69fd\u6709\u9650\u7684\u670d\u52a1\u5668\u6765\u8bf4\u662f\u4e00\u4e2a\u597d\u7684\u9009\u62e9<\/p>\n

\u6bd4\u786c\u4ef6initiator\u4fbf\u5b9c<\/p>\n

CPU\u5bc6\u96c6\u8fd0\u7b97\uff0c\u56e0\u4e3a\u534f\u8bae\u7684\u5904\u7406\u4f1a\u589e\u52a0CPU\u7684\u5f00\u9500<\/p>\n

ESX server\u4e0d\u652f\u6301\u57fa\u4e8e\u8f6f\u4ef6initiator\u7684boot\uff08\u542f\u52a8\uff09\u6a21\u5f0f\uff1bESXi\u53ef\u4ee5\u4f7f\u7528iSCSI Boot Firmware Table\uff08iBFT\uff09\u3002<\/p>\n

\u786c\u4ef6initiator\u5219\u4f7f\u7528\u4e13\u7528\u7684iSCSI HBA\u5361\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u670d\u52a1\u5668\u63d0\u5347\u6027\u80fd\u3002\u5b83\u5305\u62ec\u7f51\u7edc\u9002\u914d\u5668\u3001TCP\/IP\u534f\u8bae\u5378\u8f7d\u5f15\u64ce\uff08TOE\uff0cTCP\/IP offload engine\uff09\u3001\u4ee5\u53caSCSI\u603b\u7ebf\u63a7\u5236\u5668\u7b49\u7ec4\u4ef6\u3002\u786c\u4ef6initiator\u7684\u7279\u5f81\u5305\u62ec\uff1a<\/p>\n

I\/O\u6027\u80fd\u6bd4\u8f6f\u4ef6initiator\u597d<\/p>\n

\u6d88\u8017\u66f4\u5c11\u7684ESX server\u4e3b\u673a\u8d44\u6e90\uff0c\u7279\u522b\u662fCPU\u8d44\u6e90<\/p>\n

ESX server\u80fd\u591f\u4ece\u786c\u4ef6initiator\u542f\u52a8<\/p>\n

\u5bf9\u4e8e\u6b63\u5728\u4f7f\u7528\u5149\u7ea4\u901a\u9053\u5b58\u50a8\u7684\u7528\u6237\u6765\u8bf4\uff0ciSCSI\u662f\u4e2a\u4e0d\u9519\u7684\u66ff\u4ee3\u65b9\u6848\uff0c\u56e0\u4e3aiSCSI\u4e0d\u4f46\u53ef\u4ee5\u964d\u4f4e\u90e8\u7f72\u6210\u672c\uff0c\u8fd8\u53ef\u4ee5\u4fdd\u8bc1\u826f\u597d\u7684\u6027\u80fd\u3002vSphere\u76ee\u524d\u5df2\u7ecf\u80fd\u591f\u652f\u630110Gbps\u4ee5\u592a\u7f51\u534f\u8bae\uff0c\u6027\u80fd\u5927\u5927\u8d85\u8fc71Gbps\u4ee5\u592a\u7f51\u6280\u672f\u3002\u5f53\u7136\uff0c\u4f7f\u7528iSCSI\u4e5f\u5b58\u5728\u4e00\u4e2a\u5927\u7684\u98ce\u9669\uff0c\u5982\u679c\u91c7\u7528\u7684\u662f\u8f6f\u4ef6initiator\uff0c\u96be\u514d\u4f1a\u7ed9CPU\u5e26\u6765\u989d\u5916\u7684\u5f00\u9500\uff0c\u4e0d\u8fc7\u6362\u6210\u786c\u4ef6initiator\u4e4b\u540e\uff0c\u8fd9\u4e2a\u95ee\u9898\u5c31\u53ef\u4ee5\u907f\u514d\u3002\u4f7f\u7528\u786c\u4ef6initiator\u8fd8\u6709\u4e00\u4e2a\u597d\u5904\u5c31\u662f\u53ef\u4ee5\u5c06iSCSI\u6570\u636e\u6d41\u4e0e\u5176\u4ed6\u7f51\u7edc\u6d41\u91cf\u5b8c\u5168\u9694\u79bb\uff0c\u800c\u5404\u79cd\u6570\u636e\u6d41\u7684\u6df7\u5408\u4f1a\u8ba9\u7f51\u7edc\u73af\u5883\u53d8\u5f97\u8106\u5f31\u4e14\u5bb9\u6613\u6ce2\u52a8\u3002<\/p>\n

\u51fa\u4e8e\u4f18\u5316vSphere\u7684\u76ee\u7684\uff0cVMware\u516c\u53f8\u5c06\u8f6f\u4ef6iSCSI initiator\u7684\u5806\u6808\u4ee3\u7801\u5b8c\u5168\u91cd\u5199\u4e86\u4e00\u904d\uff0c\u5c31\u662f\u4e3a\u4e86\u66f4\u6709\u6548\u7684\u5229\u7528CPU\u65f6\u949f\u5468\u671f\u3002\u7ed3\u679c\uff0c\u4e0eVMware\u7684\u4e0a\u4e00\u4e2a\u7248\u672cInfrastructure 3\u76f8\u6bd4\uff0cvSphere\u7684\u6548\u7387\u548c\u541e\u5410\u91cf\u660e\u663e\u63d0\u5347\u3002\u8fd9\u4e2a\u7ed3\u679c\u7684\u5b9e\u73b0\u4e3b\u8981\u662f\u901a\u8fc7\u6539\u8fdbVMkernel\u7684TCP\/IP\u5806\u6808\uff0c\u4f18\u5316\u76f8\u5173\u7f13\u5b58\uff0c\u4ee5\u53ca\u901a\u8fc7\u63d0\u9ad8\u5185\u90e8\u9501\u7684\u6548\u7387\u8fbe\u6210\u7684\u3002vSphere\u8fd8\u589e\u52a0\u4e86\u5bf9\u53cc\u5411CHAP\uff08Challenge-Handshake Authentication Protocol\uff09\u7684\u652f\u6301\uff0c\u65e0\u8bba\u662finitiator\uff08\u53d1\u8d77\u7aef\uff09\u8fd8\u662fTarget\uff08\u76ee\u6807\u7aef\uff09\u90fd\u9700\u8981\u7ecf\u8fc7\u76f8\u4e92\u7684\u8ba4\u8bc1\uff0c\u8fd9\u79cd\u8ba4\u8bc1\u673a\u5236\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u5b89\u5168\u4fdd\u62a4\u3002<\/p>\n

\u5728vSphere\u73af\u5883\u4e2d\uff0c\u5982\u4f55\u89c4\u5212iSCSI\u7684\u5b9e\u65bd<\/strong><\/p>\n

\u5728\u6211\u4eec\u8ba1\u5212\u5c06iSCSI\u5b58\u50a8\u7528\u4e8evSphere\u73af\u5883\u4e4b\u524d\uff0c\u5fc5\u987b\u505a\u597d\u51e0\u4e2a\u51b3\u7b56\u3002\u8ba9\u6211\u4eec\u5148\u6765\u770b\u770biSCSI\u5b58\u50a8\u8bbe\u5907\u3002<\/p>\n

\u6211\u4eec\u53ef\u4ee5\u5728vSphere\u73af\u5883\u4e2d\u968f\u5fc3\u6240\u6b32\u7684\u4f7f\u7528\u4efb\u4f55\u7c7b\u578b\u7684iSCSI\u5b58\u50a8\u8bbe\u5907\uff0c\u56e0\u4e3a\u4e3b\u673a\u7aef\u8fde\u63a5\u4f7f\u7528\u7684\u662f\u6807\u51c6\u7684\u7f51\u7edc\u9002\u914d\u5668\u3001\u6807\u51c6\u7684initiator\u4ee5\u53ca\u901a\u7528\u7684\u534f\u8bae\u3002\u4f46\u662f\u6211\u4eec\u5fc5\u987b\u6ce8\u610f\u4e24\u4ef6\u4e8b\u3002\u9996\u5148\uff0cvSphere\u5b98\u65b9\u5ba3\u79f0\u652f\u6301\u7684iSCSI\u5b58\u50a8\u8bbe\u5907\u4ec5\u9650\u4e8e\u67d0\u4e9b\u5382\u5546\u7684\u7279\u5b9a\u578b\u53f7\uff08\u5177\u4f53\u53c2\u89c1vSphere\u786c\u4ef6\u517c\u5bb9\u6027\u6307\u5357\uff09\uff0c\u8fd9\u5c31\u610f\u5473\u7740\u5982\u679c\u6211\u4eec\u6253\u7535\u8bdd\u5411VMware\u54a8\u8be2\u4e00\u4e2a\u4e0e\u5b58\u50a8\u8bbe\u5907\u76f8\u5173\u7684\u95ee\u9898\uff0c\u4ed6\u6709\u53ef\u80fd\u8ba9\u6211\u4eec\u53bb\u62e8\u6253\u5b58\u50a8\u4f9b\u5e94\u5546\u7684\u652f\u6301\u7535\u8bdd\u3002\u5176\u6b21\uff0c\u6211\u4eec\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e0d\u540c\u7684iSCSI\u5b58\u50a8\u7cfb\u7edf\u6027\u80fd\u4e5f\u6709\u8f83\u5927\u7684\u5dee\u5f02\u3002\u901a\u5e38\uff0c\u5bf9\u6027\u80fd\u8981\u6c42\u8d8a\u9ad8\uff0c\u6240\u9700\u7684\u6210\u672c\u4e5f\u8d8a\u9ad8\u3002\u6240\u4ee5\uff0c\u9488\u5bf9\u865a\u62df\u673a\u73af\u5883\uff0c\u6211\u4eec\u8981\u8c28\u614e\u7684\u9009\u62e9iSCSI\u8bbe\u5907\uff0c\u786e\u4fdd\u5b83\u7684\u6027\u80fd\u80fd\u591f\u6ee1\u8db3\u5e94\u7528\u7a0b\u5e8f\u5bf9\u78c1\u76d8I\/O\u7684\u8981\u6c42\u3002<\/p>\n

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