{"id":9876,"date":"2013-01-31T14:00:00","date_gmt":"2013-01-31T06:00:00","guid":{"rendered":""},"modified":"2013-01-31T14:00:00","modified_gmt":"2013-01-31T06:00:00","slug":"","status":"publish","type":"post","link":"https:\/\/www.homejamesfinance.com\/p\/9876.html","title":{"rendered":"InfiniBand\u53ef\u4ee5\u8fd0\u884c\u54ea\u4e9b\u534f\u8bae\uff1f"},"content":{"rendered":"<p>\u8fd9\u4e0d\u662f\u4e00\u7bc7\u4ecb\u7ecdinfiniband\u662f\u4ec0\u4e48\u7684\u6587\u7ae0\uff0c\u800c\u4ec5\u4ec5\u7ad9\u5728Oracle RAC\u548cExadata\u7684\u89d2\u5ea6\u4e0a\u9610\u8ff0infiniband\u3002  \u5982\u679c\u60a8\u4e0d\u77e5\u9053infiniband\u662f\u4ec0\u4e48\uff0c\u8bf7\u70b9\u51fb\u8fd9\u91cc\u3002<\/p>\n<p>\u5f88\u591a\u4eba\u53ef\u80fd\u4e0d\u77e5\u9053\uff0c\u7edd\u5927\u591a\u6570\u9ad8\u6027\u80fd\u8ba1\u7b97\u673a\u5185\u90e8\u6216\u8005\u96c6\u7fa4\u4e4b\u95f4\u90fd\u662f\u4f7f\u7528infiniband\u4e92\u8054\u7684\u3002\u5728\u56fd\u5bb6\u8d85\u7b97\u4e2d\u5fc3\uff0c\u5728\u4e9a\u9a6c\u900a\u7684\u4e91\u8ba1\u7b97\u4e2d\u5fc3\u90fd\u6709\u5b83\u7684\u8eab\u5f71\u3002\u4e3a\u4ec0\u4e48infiniband\u4f1a\u5982\u6b64\u53d7\u6b22\u8fce\u5462?\u539f\u56e0\u65e0\u975e\u6709\u4e24\u4e2a\uff1a  \u4e00\u662f\u76ee\u524dinfiniband\u672c\u8eab\u80fd\u63d0\u4f9b\u6bd4\u4f20\u7edf\u4ee5\u592a\u7f51\u66f4\u9ad8\u7684\u5e26\u5bbd\uff0c  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\u3002\u4f20\u7edf\u7684TCP\/IP\u6808\u7684\u5f71\u54cd\u5b9e\u5728\u592a\u5927\u4e86\uff0c\u51e0\u4e4e\u6240\u6709\u7684\u7f51\u7edc\u5e94\u7528\u90fd\u662f\u57fa\u4e8e\u6b64\u5f00\u53d1\u7684\uff0cIPoIB\u5b9e\u9645\u662finfiniband\u4e3a\u4e86\u517c\u5bb9\u4ee5\u592a\u7f51\u4e0d\u5f97\u4e0d\u505a\u7684\u4e00\u79cd\u6298\u4e2d\uff0c\u6bd5\u7adf\u8c01\u4e5f\u4e0d\u613f\u610f\u4f7f\u7528\u4e0d\u517c\u5bb9\u5927\u89c4\u6a21\u5df2\u6709\u8bbe\u5907\u7684\u4ea7\u54c1\u3002IPoIB\u57fa\u4e8eTCP\/IP\u534f\u8bae\uff0c\u5bf9\u4e8e\u7528\u6237\u5e94\u7528\u7a0b\u5e8f\u662f\u900f\u660e\u7684\uff0c\u5e76\u4e14\u53ef\u4ee5\u63d0\u4f9b\u66f4\u5927\u7684\u5e26\u5bbd\uff0c  \u4e5f\u5c31\u662f\u539f\u5148\u4f7f\u7528TCP\/IP\u534f\u8bae\u6808\u7684\u5e94\u7528\u4e0d\u9700\u8981\u4efb\u4f55\u4fee\u6539\u5c31\u80fd\u4f7f\u7528IPoIB\u3002\u4f8b\u5982\u5982\u679c\u4f7f\u7528infiniband\u505aRAC\u7684\u79c1\u7f51\uff0c\u9ed8\u8ba4\u4f7f\u7528\u7684\u5c31\u662fIPoIB\u3002\u4e0b\u56fe\u5de6\u4fa7\u662f\u4f20\u7edf\u4ee5\u592a\u7f51tcp\/ip\u534f\u8bae\u6808\u7684\u62d3\u6251\u7ed3\u6784\uff0c\u53f3\u4fa7\u662finfiniband\u4f7f\u7528IPoIB\u534f\u8bae\u7684\u62d3\u6251\u7ed3\u6784\u3002<\/p>\n<p>&nbsp;<\/p>\n<div style=\"text-align: center\"><img decoding=\"async\" src=\"http:\/\/image.doit.com.cn\/uploadpic\/2013\/0131\/4745851.jpg\" border=\"0\" \/><\/div>\n<p>&nbsp;<\/p>\n<p><strong>RDS\u534f\u8bae\uff1a<\/strong><\/p>\n<p>Reliable Datagram Sockets  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infiniband\u8bbe\u5907\u7684\u62d3\u6251\u7ed3\u6784\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cRDS\u534f\u8bae\u4e0d\u4f1a\u88ab\u4f7f\u7528\uff0c\u9700\u8981\u8fdb\u884c\u989d\u5916\u7684relink\u3002\u53e6\u5916\u5373\u4f7frelink  RDS\u5e93\u4ee5\u540e\uff0cRAC\u8282\u70b9\u95f4\u7684CSS\u901a\u4fe1\u4e5f\u662f\u65e0\u6cd5\u4f7f\u7528RDS\u534f\u8bae\u7684\uff0c\u8282\u70b9\u95f4\u5fc3\u8df3\u7ef4\u6301\u4ee5\u53ca\u76d1\u63a7\u603b\u662f\u4f7f\u7528IPoIB\u3002\u4e0b\u56fe\u5de6\u4fa7infiniband\u4f7f\u7528IPoIB\u534f\u8bae\u7684\u62d3\u6251\u7ed3\u6784\uff0c\u53f3\u4fa7\u662finfiband\u4f7f\u7528RDS\u534f\u8bae\u7684\u62d3\u6251\u7ed3\u6784\u3002<\/p>\n<p>&nbsp;<\/p>\n<div style=\"text-align: center\"><img decoding=\"async\" src=\"http:\/\/image.doit.com.cn\/uploadpic\/2013\/0131\/5439721.jpg\" border=\"0\" \/><\/div>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p><strong>SDP\u534f\u8bae\uff1a<\/strong><\/p>\n<p>\u77e5\u9053\u5e76\u4e14\u4f7f\u7528\u8fc7RDS\u534f\u8bae\u7684\u4eba\u4e0d\u5c11\uff0c\u4f46\u662f\u53ef\u80fd\u4e0d\u5c11\u4eba\u90fd\u6ca1\u6709\u542c\u8fc7sdp\u534f\u8bae  \u3002\u8fd9\u4e2a\u534f\u8bae\u5b9e\u9645\u65e9\u572810g\u65f6\u4ee3\u5c31\u5b58\u5728\u8fc7\uff0c\u53ea\u662f\u6ca1\u6709\u4e13\u95e8\u7684\u6587\u6863\u3002\u8fd9\u4e2a\u767d\u76ae\u4e66\u7b97\u662f\u6bd4\u8f83\u5c11\u89c1\u7684\u3002\u5176\u4e2d\u53ea\u662f\u7b80\u8981\u7684\u63d0\u5230\u4e86sdp\uff0c\u6240\u8457\u7b14\u58a8\u4e0d\u591a\uff0c\u4e5f\u6ca1\u6709\u63d0\u5230\u5982\u4f55\u5b9e \u73b0\uff0c\u53ef\u80fd\u5728\u8fd9\u4e2a\u7248\u672c\u5c5e\u4e8e\u8bd5\u9a8c\u6027\u7684\u529f\u80fd\u3002\u6587\u4e2d\u63d0\u5230\u4f9d\u9760\u4e00\u4e2aOracle  Application  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Service\u76ee\u524d\u662f\u65e0\u6cd5\u8d70RDS\u534f\u8bae\u7684\u3002\u4e0b\u56fe\u5de6\u4fa7\u662f\u4f20\u7edf\u4ee5\u592a\u7f51tcp\/ip\u534f\u8bae\u6808\u7684\u62d3\u6251\u7ed3\u6784\uff0c\u53f3\u4fa7\u662finfiniband\u4f7f\u7528SDP\u534f\u8bae\u7684\u62d3\u6251\u7ed3\u6784\u3002<\/p>\n<div style=\"text-align: center\"><img decoding=\"async\" src=\"http:\/\/image.doit.com.cn\/uploadpic\/2013\/0131\/7716951.jpg\" border=\"0\" \/><\/div>\n<p>\u8fd8\u6709\u53ef\u80fd\u4f1a\u542c\u8fc7\u7684\u534f\u8bae\u6709ZDP\u548cIDB\u534f\u8bae\uff0c\u8fd9\u4e24\u4e2a\u662f\u65b0\u540d\u8bcd\uff0c\u5982\u679c\u6709\u4e00\u70b9\u4e86\u89e3\u5c31\u77e5\u9053\u662f\u4e45\u74f6\u88c5\u65b0\u9152\u3002iDB\u534f\u8bae\u7528\u4e8eExadata \u6570\u636e\u5e93\u8282\u70b9(DB   node)\u548c\u5b58\u50a8\u8282\u70b9(cell node)\u4e4b\u95f4\u7684\u901a\u4fe1\u3002i\u4ee3\u8868 intelligence,  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\u6bd4\u5982\u67d0\u4e2a\u8868\u67091\u4ebf\u884c\uff0c\u4f46\u662f\u6ee1\u8db3\u8fc7\u6ee4\u6761\u4ef6\u7684\u5c31\u53ea\u67091\u4e07\u884c\uff0c\u6570\u636e\u5e93\u8282\u70b9\u4f1a\u53d1\u51fa\u4e00\u4e2a\u6307\u4ee4\u544a\u8bc9\u5b58\u50a8\u8282\u70b9\uff0c&ldquo;\u6211\u9700\u8981\u67e5\u8be2\u67d0\u67d0\u8868\u8fc7\u6ee4\u6761\u4ef6\u662f\u4ec0\u4e48\uff0c\u4f60\u53bb\u5904\u7406\u4e00\u4e0b\uff0c\u628a\u7ed3\u679c \u544a\u8bc9\u6211\u5c31\u6210\uff0c\u6211\u8fd8\u6709\u522b\u7684\u4e8b\u60c5\u8981\u5fd9&rdquo;\u3002\u8fd9\u4e2a\u6307\u4ee4\u5c31\u662fiDB\u3002iDB\u7684\u5b9e\u73b0\u662fOracle\u516c\u53f8\u7684\u6700\u9ad8\u673a\u5bc6\uff0c\u9664\u4e86Exadata\u7684\u6838\u5fc3\u7814\u53d1\u56e2\u961f\u548c\u6280\u672f\u9ad8\u7ba1\u6ca1\u6709\u4eba \u77e5\u9053\u5185\u90e8\u662f\u5982\u4f55\u5b9e\u73b0\u7684\uff0c\u53ea\u77e5\u9053iDB\u534f\u8bae\u662f\u8fd0\u884c\u5728ZDP\u534f\u8bae(Zero-loss  Zero-copy Datagram Protocol)\u4e4b\u4e0a\uff0c\u57fa\u4e8e\u57fa\u4e8eRDS\u534f\u8bae\u7684V3\u7248\u672c(OFED version  1.3.1))\u7684\u6807\u51c6\u8fdb\u884c\u7814\u53d1\u7684\u3002Oracle\u7684\u5b98\u65b9\u6570\u636e\u663e\u793a\u4f7f\u7528ZDP\u534f\u8bae\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u80fd\u8fbe\u5230\u6bcf\u79d23GB\/s\uff0c\u800c\u4ec5\u4ec5\u6d88\u8017\u4e3b\u673aCPU\u8d44\u6e90\u76842%\u3002<\/p>\n<p>\u4ee5\u4e0a\u4ec5\u4ec5\u8bb2\u5230Oracle\u76f8\u5173\u7684\u4e00\u4e9binfiniband\u534f\u8bae\uff0c\u6700\u540e\u4e0a\u4f20\u4e00\u5f20\u56fe\u7247\u8bb2\u56ca\u62ecinfiniband\u7684Stack\u4f5c\u4e3a\u8865\u5145\u3002<\/p>\n<div style=\"text-align: center\"><img decoding=\"async\" src=\"http:\/\/image.doit.com.cn\/uploadpic\/2013\/0131\/7919381.jpg\" border=\"0\" \/><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u4e0d\u662f\u4e00\u7bc7\u4ecb\u7ecdinfiniband\u662f\u4ec0\u4e48\u7684\u6587\u7ae0\uff0c\u800c\u4ec5\u4ec5\u7ad9\u5728Oracle 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