\u786c\u789f I\/O \u8207\u983b\u5bec\u7684\u57fa\u790e\u77e5\u8b58<\/strong><\/h2>\n

\u4ec0\u9ebc\u662f\u786c\u789f I\/O\uff1f<\/h3>\n

\u6bcf\u7576\u4f60\u5728\u4f3a\u670d\u5668\u4e0a\u8b80\u5beb\u8cc7\u6599\u6642\uff0c\u90fd\u6703\u6d89\u53ca\u786c\u789f I\/O\u3002\u9019\u500b\u904e\u7a0b\u8861\u91cf\u7684\u662f\u5132\u5b58\u88dd\u7f6e\u8655\u7406\u8f38\u5165\/\u8f38\u51fa\u64cd\u4f5c\u7684\u901f\u5ea6\u3002\u5e38\u7528\u7684\u6307\u6a19\u662f IOPS\uff08\u6bcf\u79d2\u8f38\u5165\/\u8f38\u51fa\u6b21\u6578\uff0cinput\/output operations per second\uff09\uff0c\u5b83\u8868\u793a\u786c\u789f\u6216 SSD \u5728\u4e00\u79d2\u5167\u53ef\u4ee5\u5b8c\u6210\u591a\u5c11\u6b21\u8b80\u5beb\u64cd\u4f5c\u3002\u4f60\u9084\u9700\u8981\u95dc\u6ce8\u50b3\u8f38\u901f\u7387\uff08transfer rate\uff09\uff0c\u5b83\u53cd\u6620\u8cc7\u6599\u5728\u5132\u5b58\u88dd\u7f6e\u4e2d\u5f9e\u4e00\u500b\u4f4d\u7f6e\u79fb\u52d5\u5230\u53e6\u4e00\u500b\u4f4d\u7f6e\u7684\u901f\u5ea6\u3002\u4e0d\u540c\u985e\u578b\u7684\u5132\u5b58\u88dd\u7f6e\u8207 RAID \u65b9\u6848\u6703\u5f71\u97ff IOPS \u7684\u8a08\u7b97\u7d50\u679c\uff0c\u4f8b\u5982\uff0cSSD \u7684 IOPS \u901a\u5e38\u9060\u9ad8\u65bc HDD\uff0c\u800c\u67d0\u4e9b RAID \u7d44\u614b\u9084\u53ef\u80fd\u62d6\u6162\u6548\u80fd\u3002<\/p>\n

\u50b3\u7d71\u6a5f\u68b0\u786c\u789f\u7684\u5ef6\u9072\u901a\u5e38\u5728 10\u201320 \u6beb\u79d2\u4e4b\u9593\uff0c\u9019\u8b93\u5b83\u5011\u4e0d\u592a\u9069\u5408\u9700\u8981\u9ad8\u541e\u5410\u91cf\u7684\u8cc7\u6599\u5bc6\u96c6\u578b\u61c9\u7528\u3002\u7576\u4f3a\u670d\u5668\u9700\u8981\u540c\u6642\u8655\u7406\u5927\u6a94\u6848\u6216\u5927\u91cf\u8acb\u6c42\u6642\uff0c\u4f60\u5c31\u6703\u660e\u986f\u611f\u89ba\u5230\u5ef6\u9072\u3002\u50cf iostat<\/code> \u548c vmstat<\/code> \u9019\u985e\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u4f60\u76e3\u63a7\u78c1\u789f I\/O \u6548\u80fd\u3002\u5982\u679c\u4f60\u770b\u5230\u8f03\u9ad8\u7684 I\/O \u7b49\u5f85\u6642\u9593\u6216\u8f03\u9577\u7684\u4f47\u5217\u9577\u5ea6\uff0c\u5c31\u8aaa\u660e\u5132\u5b58\u7cfb\u7d71\u53ef\u80fd\u8ddf\u4e0d\u4e0a\u7576\u524d\u8ca0\u8f09\u3002<\/p>\n

\u983b\u5bec\u8207 I\/O \u5982\u4f55\u76f8\u4e92\u5f71\u97ff<\/h3>\n

\u983b\u5bec\u8868\u793a\u5728\u4e00\u5b9a\u6642\u9593\u5167\uff0c\u7db2\u8def\u53ef\u4ee5\u50b3\u9001\u6216\u63a5\u6536\u7684\u8cc7\u6599\u91cf\u3002\u8981\u652f\u6490\u8cc7\u6599\u5bc6\u96c6\u578b\u61c9\u7528\uff0c\u4f60\u65e2\u9700\u8981\u7db2\u8def\u6709\u8db3\u5920\u9ad8\u7684\u541e\u5410\u91cf\uff0c\u4e5f\u9700\u8981\u786c\u789f I\/O \u8db3\u5920\u5feb\u3002\u5982\u679c\u5132\u5b58\u8655\u7406\u8cc7\u6599\u7684\u901f\u5ea6\u8ddf\u4e0d\u4e0a\uff0c\u4f3a\u670d\u5668\u5c31\u7121\u6cd5\u5145\u5206\u5229\u7528\u53ef\u7528\u983b\u5bec\u3002\u4f60\u53ef\u80fd\u6703\u770b\u5230\u4e0b\u8f09\u901f\u7387\u5076\u723e\u885d\u9ad8\uff0c\u63a5\u8457\u53c8\u51fa\u73fe\u5ef6\u9072\uff0c\u5c24\u5176\u662f\u5728\u4f7f\u7528\u50b3\u7d71\u786c\u789f\u6642\u3002\u9019\u4e9b\u5ef6\u9072\u5f80\u5f80\u662f\u56e0\u70ba\u672c\u5730\u78c1\u789f I\/O \u6642\u9593\u904e\u9577\uff0c\u62d6\u6162\u4e86\u6574\u9ad4\u50b3\u8f38\u3002\u7576 I\/O \u4f47\u5217\u88ab\u5806\u6eff\u5f8c\uff0c\u7cfb\u7d71\u6548\u80fd\u81ea\u7136\u6703\u4e0b\u6ed1\u3002<\/p>\n

\u9ad8\u541e\u5410\u91cf\u4f9d\u8cf4\u65bc\u7db2\u8def\u901f\u5ea6\u8207\u5132\u5b58\u6548\u80fd\u7684\u5171\u540c\u914d\u5408\u3002\u5728\u4f7f\u7528 SATA \u6216 SAS \u4ecb\u9762\u6642\uff0c\u4ecb\u9762\u672c\u8eab\u7684\u7e3d\u541e\u5410\u80fd\u529b\u901a\u5e38\u9ad8\u65bc\u55ae\u4e00\u786c\u789f\u7684\u80fd\u529b\u3002\u7576\u591a\u9846\u786c\u789f\u5171\u4eab\u540c\u4e00\u4ecb\u9762\uff0c\u6216\u8005\u786c\u789f\u672c\u8eab\u7684\u8f49\u901f\u6210\u70ba\u9650\u5236\u56e0\u7d20\u6642\uff0c\u5c31\u6703\u51fa\u73fe\u74f6\u9838\u3002\u8cc7\u6599\u5bc6\u96c6\u578b\u61c9\u7528\u9700\u8981\u5132\u5b58\u80fd\u529b\u8207\u7db2\u8def\u7684\u8cc7\u6599\u50b3\u8f38\u80fd\u529b\u76f8\u5339\u914d\u3002\u900f\u904e\u5347\u7d1a\u5230 SSD \u6216\u512a\u5316\u5132\u5b58\u67b6\u69cb\uff0c\u5c31\u80fd\u7372\u5f97\u66f4\u9ad8\u7684\u541e\u5410\u91cf\u4e26\u6e1b\u5c11\u74f6\u9838\u3002<\/p>\n

\u63d0\u793a\uff1a\u5b9a\u671f\u76e3\u63a7\u78c1\u789f I\/O\u3002\u5982\u679c\u767c\u73fe\u6548\u80fd\u4e0b\u6ed1\uff0c\u53ef\u4ee5\u8003\u616e\u786c\u9ad4\u5347\u7d1a\u6216\u8abf\u6574\u5132\u5b58\u7d44\u614b\u3002<\/p><\/blockquote>\n

\u4f3a\u670d\u5668\u6548\u80fd\u4e2d\u7684\u541e\u5410\u91cf\u8207 IOPS<\/strong><\/h2>\n

\u7406\u89e3\u541e\u5410\u91cf\u4e0a\u9650<\/h3>\n

\u7ba1\u7406\u7f8e\u570b\u4f3a\u670d\u5668\u6642\uff0c\u4f60\u9700\u8981\u4e86\u89e3\u541e\u5410\u91cf\u7684\u9650\u5236\u3002\u541e\u5410\u91cf\u6307\u7684\u662f\u6bcf\u79d2\u5f9e\u5132\u5b58\u5230\u7db2\u8def\u50b3\u51fa\u7684\u8cc7\u6599\u91cf\u3002\u4f3a\u670d\u5668\u786c\u789f\u5728\u652f\u6490\u96f2\u7aef\u904b\u7b97\u3001\u96fb\u5546\u7b49\u61c9\u7528\u6642\u626e\u6f14\u95dc\u9375\u89d2\u8272\uff0c\u9019\u4e9b\u61c9\u7528\u65e2\u9700\u8981\u53ef\u9760\u7684\u5132\u5b58\uff0c\u4e5f\u9700\u8981\u8f03\u9ad8\u7684\u541e\u5410\u91cf\u3002\u6a5f\u68b0\u786c\u789f\u901a\u5e38\u6703\u56e0\u70ba\u81ea\u8eab IOPS \u7bc4\u570d\u53d7\u9650\u800c\u66f4\u65e9\u89f8\u53ca\u541e\u5410\u4e0a\u9650\u3002\u5927\u591a\u6578 HDD \u7684 IOPS \u50c5\u5728 55\u2013180 \u5de6\u53f3\uff0c\u76f8\u8f03\u65bc\u7db2\u8def\u901f\u5ea6\uff0c\u9019\u6703\u660e\u986f\u9650\u5236\u541e\u5410\u3002\u800c\u56fa\u614b\u786c\u789f\u7684 IOPS \u5247\u9ad8\u5f97\u591a\uff0c\u901a\u5e38\u5728 3,000\u201340,000 \u4e4b\u9593\uff0c\u5207\u63db\u5230 SSD \u5f8c\uff0c\u4f60\u6703\u660e\u986f\u611f\u53d7\u5230\u541e\u5410\u91cf\u7684\u8e8d\u5347\u3002<\/p>\n

\u6ce8\u610f\uff1a\u5982\u679c\u60f3\u8981\u66f4\u9ad8\u7684\u541e\u5410\u91cf\uff0c\u5fc5\u9808\u8b93\u5132\u5b58\u88dd\u7f6e\u7684\u6548\u80fd\u8207\u7db2\u8def\u80fd\u529b\u76f8\u5339\u914d\u3002\u5373\u4f7f\u7db2\u8def\u518d\u5feb\uff0c\u6162\u901f\u78c1\u789f\u4e5f\u6703\u6210\u70ba\u541e\u5410\u74f6\u9838\u3002<\/p><\/blockquote>\n

\u4e0b\u9762\u7684\u8868\u683c\u53ef\u4ee5\u5e6b\u52a9\u4f60\u5c0d\u6bd4\u5178\u578b\u7684\u541e\u5410\u91cf\u4e0a\u9650\uff1a<\/p>\n

\n\n\n\n\n<\/colgroup>\n\n\n\n\n

\u5132\u5b58\u985e\u578b<\/th>\n	IOPS \u7bc4\u570d<\/th>\n	\u6f5b\u5728\u541e\u5410\u91cf<\/th>\n<\/tr>\n
HDD<\/td>\n	55\u2013180<\/td>\n	\u8f03\u4f4e<\/td>\n<\/tr>\n
SSD<\/td>\n	3,000\u201340,000<\/td>\n	\u8f03\u9ad8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n IOPS \u8207\u541e\u5410\u91cf\u7684\u95dc\u4fc2<\/h3>\n \u70ba\u4e86\u7372\u5f97\u6700\u4f73\u4f3a\u670d\u5668\u6548\u80fd\uff0c\u4f60\u5fc5\u9808\u5728 IOPS \u8207\u541e\u5410\u91cf\u4e4b\u9593\u53d6\u5f97\u5e73\u8861\u3002IOPS \u8861\u91cf\u7684\u662f\u5132\u5b58\u6bcf\u79d2\u80fd\u8655\u7406\u591a\u5c11\u6b21\u8f38\u5165\/\u8f38\u51fa\u64cd\u4f5c\uff0c\u800c\u541e\u5410\u91cf\u95dc\u6ce8\u7684\u662f\u55ae\u4f4d\u6642\u9593\u5167\u50b3\u8f38\u7684\u8cc7\u6599\u7e3d\u91cf\u3002\u9019\u5169\u500b\u6307\u6a19\u76f8\u8f14\u76f8\u6210\u3002\u5c0d\u65bc\u5927\u6a94\u6848\u50b3\u8f38\u4f86\u8aaa\uff0c\u9806\u5e8f IOPS \u5f80\u5f80\u80fd\u986f\u8457\u63d0\u9ad8\u541e\u5410\u91cf\uff1b\u5982\u679c\u4f60\u53ea\u95dc\u6ce8 IOPS\uff0c\u53ef\u80fd\u6703\u5ffd\u7565\u5c0d\u5927\u8cc7\u6599\u91cf\u50b3\u8f38\u7684\u6700\u4f73\u5316\uff1b\u540c\u6a23\u5730\uff0c\u5982\u679c\u53ea\u95dc\u6ce8\u541e\u5410\u91cf\uff0c\u53c8\u53ef\u80fd\u5ffd\u7565\u5c0f I\/O \u64cd\u4f5c\u5c0d IOPS \u7684\u9700\u6c42\u3002<\/p>\n \n IOPS \u5c0d\u65bc\u5305\u542b\u5927\u91cf\u5c0f\u578b\u8b80\u5beb\u64cd\u4f5c\u7684\u61c9\u7528\uff08\u5982\u8cc7\u6599\u5eab\uff09\u5c24\u70ba\u91cd\u8981\u3002<\/li>\n \u541e\u5410\u91cf\u5247\u5c0d\u5927\u6a94\u6848\u50b3\u8f38\u60c5\u5883\u66f4\u95dc\u9375\u3002<\/li>\n \u66f4\u9ad8\u7684 IOPS \u80fd\u63d0\u5347\u8cc7\u6599\u5eab\u548c\u5176\u4ed6\u8cc7\u6599\u5bc6\u96c6\u578b\u5de5\u4f5c\u7684\u56de\u61c9\u901f\u5ea6\u3002<\/li>\n \u66f4\u9ad8\u7684\u541e\u5410\u91cf\u5247\u6709\u52a9\u65bc\u9700\u8981\u8655\u7406\u5927\u6a94\u6848\u7684\u61c9\u7528\u3002<\/li>\n \u4f60\u9700\u8981\u540c\u6642\u5e73\u8861\u9019\u5169\u9805\u6307\u6a19\uff0c\u4ee5\u907f\u514d\u6574\u9ad4\u6548\u80fd\u4e0d\u4f73\u3002<\/li>\n<\/ul>\n \u4f60\u53ef\u4ee5\u6839\u64da IOPS \u8207\u5340\u584a\u5927\u5c0f\u4f86\u8a08\u7b97\u541e\u5410\u91cf\u3002\u5728\u50b3\u8f38\u5927\u6a94\u6848\u6642\uff0c\u66f4\u9ad8\u7684\u9806\u5e8f IOPS \u6703\u5e36\u4f86\u66f4\u9ad8\u7684\u541e\u5410\u3002\u61c9\u540c\u6642\u76e3\u63a7\u9019\u5169\u500b\u6307\u6a19\uff0c\u4ee5\u78ba\u4fdd\u4f3a\u670d\u5668\u59cb\u7d42\u7dad\u6301\u826f\u597d\u6548\u80fd\u3002<\/p>\n \u63d0\u793a\uff1a\u52d9\u5fc5\u540c\u6642\u95dc\u6ce8 IOPS \u8207\u541e\u5410\u91cf\uff0c\u9019\u6709\u52a9\u65bc\u4f60\u63d0\u524d\u767c\u73fe\u74f6\u9838\uff0c\u8b93\u4f3a\u670d\u5668\u4fdd\u6301\u9806\u66a2\u904b\u4f5c\u3002<\/p><\/blockquote>\n \u7f8e\u570b\u4f3a\u670d\u5668\u4e2d\u7684\u786c\u789f I\/O \u74f6\u9838<\/strong><\/h2>\n \u5927 I\/O \u8207\u5c0f I\/O \u8acb\u6c42\u7684\u5dee\u7570<\/h3>\n \u4f60\u9700\u8981\u4e86\u89e3\u4e0d\u540c\u985e\u578b\u7684 I\/O \u8acb\u6c42\u5982\u4f55\u5f71\u97ff\u4f3a\u670d\u5668\u6548\u80fd\u3002\u5927\u6279\u91cf I\/O \u8acb\u6c42\u901a\u5e38\u6d89\u53ca\u5927\u6a94\u6848\u50b3\u8f38\u6216\u4e32\u6d41\u8cc7\u6599\uff0c\u9019\u985e\u8acb\u6c42\u53d7\u76ca\u65bc\u9806\u5e8f\u5b58\u53d6\u6a21\u5f0f\uff0c\u5132\u5b58\u7cfb\u7d71\u53ef\u4ee5\u9023\u7e8c\u5730\u8b80\u5beb\u5927\u5340\u584a\u8cc7\u6599\uff0c\u5f9e\u800c\u964d\u4f4e\u5ef6\u9072\u3001\u63d0\u5347\u541e\u5410\uff1b\u7576\u4f60\u7684\u5132\u5b58\u7cfb\u7d71\u80fd\u5920\u6709\u6548\u8655\u7406\u5927\u578b\u8acb\u6c42\u6642\uff0c\u4f60\u5c31\u80fd\u7372\u5f97\u66f4\u7a69\u5b9a\u3001\u66f4\u9ad8\u7684\u983b\u5bec\u8868\u73fe\u3002<\/p>\n \u5c0f I\/O \u8acb\u6c42\u7684\u60c5\u6cc1\u5247\u4e0d\u540c\uff0c\u5b83\u5011\u5f80\u5f80\u4f86\u81ea\u8cc7\u6599\u5eab\u6216\u983b\u7e41\u8b80\u5beb\u5c0f\u8cc7\u6599\u584a\u7684\u61c9\u7528\u3002\u6bcf\u4e00\u6b21\u8acb\u6c42\u90fd\u6703\u5e36\u4f86\u984d\u5916\u958b\u92b7\uff0c\u5132\u5b58\u7cfb\u7d71\u5fc5\u9808\u5206\u5225\u5b9a\u4f4d\u4e26\u8655\u7406\u6bcf\u4e00\u5c0f\u584a\u8cc7\u6599\uff0c\u5f9e\u800c\u589e\u52a0\u5ef6\u9072\u3001\u964d\u4f4e\u541e\u5410\u3002\u6a5f\u68b0\u786c\u789f\u5728\u8655\u7406\u5927\u91cf\u5c0f I\/O \u8acb\u6c42\u6642\u7279\u5225\u5403\u529b\uff0c\u56e0\u70ba\u78c1\u982d\u9700\u8981\u983b\u7e41\u79fb\u52d5\uff0c\u4f60\u6703\u660e\u986f\u611f\u89ba\u5230\u5ef6\u9072\u8207\u50b3\u8f38\u901f\u7387\u4e0b\u964d\u3002<\/p>\n \u5c0d\u6bd4\u9019\u5169\u7a2e\u60c5\u5883\u6642\uff0c\u5ef6\u9072\u7684\u5f71\u97ff\u5c31\u975e\u5e38\u660e\u986f\uff1a\u5927\u8acb\u6c42\u80fd\u8b93\u78c1\u789f\u5728\u8f03\u9577\u6642\u9593\u5167\u9023\u7e8c\u5de5\u4f5c\u3001\u6e1b\u5c11\u4e2d\u65b7\uff0c\u800c\u5c0f\u8acb\u6c42\u5247\u8b93\u78c1\u982d\u4e0d\u65b7\u555f\u505c\u3001\u6d6a\u8cbb\u6642\u9593\u3002\u5982\u679c\u4f60\u60f3\u7372\u5f97\u9ad8\u6548\u80fd\uff0c\u5c31\u9700\u8981\u6839\u64da\u5be6\u969b\u8ca0\u8f09\u9078\u64c7\u5408\u9069\u7684\u5132\u5b58\u7cfb\u7d71\u3002\u9762\u5c0d\u8cc7\u6599\u5bc6\u96c6\u578b\u61c9\u7528\uff0c\u4f60\u5fc5\u9808\u8b93\u5132\u5b58\u540c\u6642\u80fd\u6709\u6548\u8655\u7406\u5927 I\/O \u8207\u5c0f I\/O\u3002<\/p>\n \u4f60\u53ef\u80fd\u6703\u8a8d\u70ba\uff0c\u53ea\u8981\u63d0\u5347\u786c\u789f\u5bb9\u91cf\u5c31\u80fd\u89e3\u6c7a\u6548\u80fd\u554f\u984c\uff0c\u4f46\u5be6\u969b\u4e0a\uff0c\u9019\u7a2e\u505a\u6cd5\u5f80\u5f80\u6703\u964d\u4f4e I\/O \u5bc6\u5ea6\uff0c\u53cd\u800c\u524a\u5f31\u5132\u5b58\u7cfb\u7d71\u7684\u6574\u9ad4\u6548\u80fd\u3002\u8acb\u7559\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n \n \u73fe\u4ee3\u5de5\u4f5c\u8ca0\u8f09\u9700\u8981\u5728\u5bb9\u91cf\u8207\u6548\u80fd\u4e4b\u9593\u505a\u7b56\u7565\u6027\u6b0a\u8861\uff0c\u800c\u4e0d\u53ea\u662f\u55ae\u7d14\u64f4\u5bb9\u3002<\/li>\n \u9ad8\u5bb9\u91cf\u786c\u789f\u5f80\u5f80\u96e3\u4ee5\u6eff\u8db3\u8cc7\u6599\u5bc6\u96c6\u578b\u61c9\u7528\u7684\u6548\u80fd\u9700\u6c42\uff0c\u5f9e\u800c\u5f71\u97ff\u4f3a\u670d\u5668\u6574\u9ad4\u8868\u73fe\u3002<\/li>\n \u55ae\u7d14\u4f9d\u8cf4\u300c\u52a0\u5927\u5bb9\u91cf\u300d\u9019\u7a2e\u50b3\u7d71\u65b9\u5f0f\uff0c\u4e26\u4e0d\u80fd\u4fdd\u8b49\u6548\u80fd\u63d0\u5347\uff0c\u5fc5\u9808\u5728\u5bb9\u91cf\u8207 I\/O \u5bc6\u5ea6\u4e4b\u9593\u5c0b\u6c42\u5e73\u8861\u3002<\/li>\n<\/ul>\n \u56e0\u6b64\uff0c\u4f60\u61c9\u8a72\u9078\u64c7\u5728\u5bb9\u91cf\u8207 I\/O \u5bc6\u5ea6\u4e0a\u66f4\u5747\u8861\u7684\u5132\u5b58\u7cfb\u7d71\u3002\u65b0\u6280\u8853\u5982 HAMR \u65e8\u5728\u63d0\u9ad8\u9762\u5bc6\u5ea6\u4e26\u6539\u5584\u6548\u80fd\uff0c\u4f46\u8981\u771f\u6b63\u767c\u63ee\u9ad8\u5bb9\u91cf\u786c\u789f\u7684\u512a\u52e2\uff0c\u4ecd\u9700\u8981\u89e3\u6c7a\u4e00\u7cfb\u5217\u6280\u8853\u6311\u6230\u3002<\/p>\n \u78c1\u789f\u5beb\u5165\u901f\u5ea6\u7684\u5f71\u97ff<\/h3>\n \u78c1\u789f\u5beb\u5165\u901f\u5ea6\u5c0d\u4f3a\u670d\u5668\u80fd\u5426\u652f\u6490\u5927\u983b\u5bec\u50b3\u8f38\u6709\u8457\u91cd\u8981\u5f71\u97ff\u3002\u5373\u4f7f\u7db2\u8def\u901f\u5ea6\u5f88\u5feb\uff0c\u5132\u5b58\u7cfb\u7d71\u4ecd\u53ef\u80fd\u6210\u70ba\u74f6\u9838\u3002\u7576\u7db2\u8def\u983b\u5bec\u8d85\u904e\u7cfb\u7d71\u5beb\u5165\u8cc7\u6599\u7684\u80fd\u529b\u6642\uff0c\u541e\u5410\u91cf\u5c31\u6703\u53d7\u9650\u3002\u786c\u789f I\/O \u5f80\u5f80\u96e3\u4ee5\u5b8c\u5168\u8ddf\u4e0a\u9ad8\u901f\u7db2\u8def\u9023\u7dda\uff0c\u5169\u8005\u4e0d\u5339\u914d\u6642\u5c31\u6703\u5c0e\u81f4\u5ef6\u9072\u589e\u52a0\u8207\u6574\u9ad4\u6548\u80fd\u4e0b\u6ed1\u3002<\/p>\n \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5927\u591a\u6578\u5132\u5b58\u5a92\u4ecb\u7684\u5beb\u5165\u6548\u80fd\u901a\u5e38\u4f4e\u65bc\u8b80\u53d6\u6548\u80fd\uff0c\u5728\u9ad8\u5f37\u5ea6\u5beb\u5165\u8ca0\u8f09\u4e0b\uff0c\u9019\u7a2e\u5dee\u7570\u6703\u653e\u5927\u5ef6\u9072\u554f\u984c\u3002\u7cfb\u7d71\u5c64\u7d1a\u7684 TCP\/IP \u5354\u5b9a\u68e7\u8655\u7406\u8207\u6a94\u6848\u7cfb\u7d71\u64cd\u4f5c\u4e5f\u6703\u4f54\u7528 CPU \u8cc7\u6e90\uff0c\u9019\u4e9b\u958b\u92b7\u6703\u9032\u4e00\u6b65\u64e0\u58d3\u7528\u65bc\u5132\u5b58 I\/O \u7684\u8655\u7406\u80fd\u529b\uff0c\u5f9e\u800c\u9650\u5236\u541e\u5410\u3002<\/p>\n \u5982\u679c\u4f60\u4f7f\u7528\u4e86\u5728\u5beb\u5165\u6642\u9700\u8981\u6821\u9a57\u7684 RAID \u7d44\u614b\uff0c\u90a3\u9ebc\u5beb\u5165\u6548\u80fd\u53ef\u80fd\u9032\u4e00\u6b65\u4e0b\u964d\u3002\u5c0d\u65bc\u5beb\u5165\u8ca0\u8f09\u8f03\u91cd\u7684\u61c9\u7528\uff0c\u9019\u4e9b\u984d\u5916\u6821\u9a57\u6b65\u9a5f\u6703\u5e36\u4f86\u66f4\u9ad8\u5ef6\u9072\u3001\u964d\u4f4e\u6301\u7e8c\u983b\u5bec\u3002<\/p>\n \u70ba\u4e86\u7372\u5f97\u66f4\u597d\u7684\u6574\u9ad4\u8868\u73fe\uff0c\u4f60\u9700\u8981\u540c\u6642\u91dd\u5c0d\u8b80\u5beb\u64cd\u4f5c\u512a\u5316\u5132\u5b58\u7cfb\u7d71\u3002\u5b9a\u671f\u76e3\u63a7\u78c1\u789f\u5beb\u5165\u901f\u5ea6\u4e26\u8a2d\u6cd5\u964d\u4f4e\u5ef6\u9072\uff0c\u9078\u64c7\u9069\u5408\u5de5\u4f5c\u8ca0\u8f09\u7684\u786c\u9ad4\u8207\u7d44\u614b\uff0c\u9019\u4e9b\u63aa\u65bd\u90fd\u80fd\u6709\u6548\u907f\u514d\u74f6\u9838\uff0c\u652f\u6490\u9ad8\u8cc7\u6599\u50b3\u8f38\u901f\u7387\u3002<\/p>\n \u5132\u5b58\u6548\u80fd\uff1aHDD \u8207 SSD<\/strong><\/h2>\n SSD \u8207\u9ad8\u983b\u5bec\u50b3\u8f38<\/h3>\n \u4f60\u9700\u8981\u4e86\u89e3\uff0c\u7576\u628a HDD \u63db\u6210 SSD \u6642\uff0c\u5132\u5b58\u6548\u80fd\u6703\u767c\u751f\u600e\u6a23\u7684\u8b8a\u5316\u3002SSD \u5177\u6709\u66f4\u5feb\u7684\u8b80\u5beb\u901f\u5ea6\uff0c\u5176\u512a\u52e2\u53ef\u4ee5\u900f\u904e\u4e0b\u8868\u76f4\u89c0\u5448\u73fe\uff1a<\/p>\n \n\n\n\n\n\n<\/colgroup>\n\n\n\n\n \u5132\u5b58\u985e\u578b<\/th>\n \u8b80\/\u5beb\u901f\u5ea6\uff08MB\/s\uff09<\/th>\n \u5b58\u53d6\u6642\u9593<\/th>\n \u5ef6\u9072<\/th>\n<\/tr>\n SSD<\/td>\n 200 MB\/s \u81f3 2500 MB\/s<\/td>\n \u66f4\u5feb<\/td>\n \u66f4\u4f4e<\/td>\n<\/tr>\n HDD<\/td>\n \u6700\u9ad8\u7d04 200 MB\/s<\/td>\n \u66f4\u6162<\/td>\n \u66f4\u9ad8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u7531\u65bc SSD \u64c1\u6709\u66f4\u4f4e\u7684\u5ef6\u9072\u8207\u66f4\u5feb\u7684\u5b58\u53d6\u6642\u9593\uff0c\u4f60\u53ef\u4ee5\u7372\u5f97\u66f4\u51fa\u8272\u7684\u5132\u5b58\u6548\u80fd\uff0c\u9019\u4f7f\u4f3a\u670d\u5668\u80fd\u5920\u5728\u5927\u983b\u5bec\u50b3\u8f38\u60c5\u5883\u4e0b\u66f4\u5e73\u7a69\u5730\u904b\u4f5c\u3002\u7576\u4f7f\u7528 SSD \u6642\uff0c\u4f60\u6703\u767c\u73fe\u61c9\u7528\u8f09\u5165\u66f4\u5feb\u3001\u6a94\u6848\u50b3\u8f38\u66f4\u8fc5\u901f\uff1b\u800c HDD \u5f80\u5f80\u56e0\u70ba\u5132\u5b58\u6548\u80fd\u8ddf\u4e0d\u4e0a\u9ad8\u901f\u7db2\u8def\u800c\u62d6\u6162\u6574\u9ad4\u8868\u73fe\u3002\u5982\u679c\u60f3\u6700\u5927\u5316\u5132\u5b58\u6548\u80fd\uff0c\u5c0d\u65bc\u8cc7\u6599\u5bc6\u96c6\u578b\u5de5\u4f5c\u8ca0\u8f09\uff0c\u61c9\u512a\u5148\u9078\u64c7 SSD\u3002<\/p>\n \u73fe\u4ee3\u5132\u5b58\u89e3\u6c7a\u65b9\u6848<\/h3>\n \u5982\u4eca\uff0c\u4f60\u6709\u66f4\u591a\u65b9\u5f0f\u4f86\u63d0\u5347\u4f3a\u670d\u5668\u74b0\u5883\u4e2d\u7684\u5132\u5b58\u6548\u80fd\u3002\u73fe\u4ee3\u5132\u5b58\u89e3\u6c7a\u65b9\u6848\u53ef\u4ee5\u5e6b\u52a9\u4f60\u66f4\u6709\u6548\u7387\u5730\u5229\u7528\u983b\u5bec\u3001\u6e1b\u5c11\u5ef6\u9072\u3002\u4ee5\u4e0b\u662f\u5e7e\u9805\u95dc\u9375\u9032\u5c55\uff1a<\/p>\n \n \u908a\u7de3\u904b\u7b97\u8207\u908a\u7de3\u5132\u5b58\u5c07\u8cc7\u6599\u8655\u7406\u66f4\u9760\u8fd1\u8cc7\u6599\u4f86\u6e90\uff0c\u5f9e\u800c\u964d\u4f4e\u5ef6\u9072\u4e26\u63d0\u5347\u5132\u5b58\u6548\u80fd\u3002<\/li>\n \u6301\u4e45\u6027\u8a18\u61b6\u9ad4\u8207\u5132\u5b58\u7d1a\u8a18\u61b6\u9ad4\u63d0\u4f9b\u4ecb\u65bc\u50b3\u7d71\u5132\u5b58\u8207 RAM \u4e4b\u9593\u7684\u901f\u5ea6\uff0c\u70ba\u9ad8\u8981\u6c42\u4efb\u52d9\u5e36\u4f86\u5353\u8d8a\u6548\u80fd\u3002<\/li>\n \u8edf\u9ad4\u5b9a\u7fa9\u5132\u5b58\uff08SDS\uff09\u5e36\u4f86\u66f4\u9748\u6d3b\u7684\u8cc7\u6e90\u7ba1\u7406\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6309\u9700\u64f4\u5145\u6216\u7e2e\u6e1b\uff0c\u4e26\u96a8\u696d\u52d9\u8b8a\u5316\u6700\u4f73\u5316\u5132\u5b58\u6548\u80fd\u3002<\/li>\n<\/ul>\n \u4f60\u9084\u53ef\u4ee5\u5c0d\u6bd4\u4e0d\u540c\u985e\u578b\u786c\u789f\u7684\u6548\u80fd\uff1a<\/p>\n \n HDD \u7684\u5178\u578b\u901f\u5ea6\u7d04\u70ba 80\u2013160 MB\/s\u3002<\/li>\n SATA SSD \u7684\u901f\u5ea6\u53ef\u9054\u7d04 500 MB\/s\u3002<\/li>\n NVMe SSD \u7684\u901f\u5ea6\u5247\u53ef\u8d85\u904e 7000 MB\/s\uff0c\u5728\u7cfb\u7d71\u958b\u6a5f\u3001\u61c9\u7528\u8f09\u5165\u8207\u5927\u6a94\u6848\u50b3\u8f38\u65b9\u9762\u8868\u73fe\u6700\u70ba\u51fa\u8272\u3002<\/li>\n<\/ul>\n \u5728\u9078\u64c7\u5132\u5b58\u65b9\u6848\u6642\uff0c\u52d9\u5fc5\u8b93\u5132\u5b58\u6548\u80fd\u8207\u7db2\u8def\u901f\u5ea6\u76f8\u5339\u914d\uff0c\u9019\u6a23\u624d\u80fd\u767c\u63ee\u983b\u5bec\u7684\u6700\u5927\u6548\u76ca\u3002\u5347\u7d1a\u5230\u66f4\u5148\u9032\u7684\u5132\u5b58\u6280\u8853\uff0c\u53ef\u4ee5\u5145\u5206\u91cb\u653e\u4f3a\u670d\u5668\u7684\u6f5b\u5728\u6548\u80fd\u3002<\/p>\n \u70ba\u5927\u983b\u5bec\u6700\u4f73\u5316\u4f3a\u670d\u5668\u6548\u80fd<\/strong><\/h2>\n \u786c\u9ad4\u5347\u7d1a<\/h3>\n \u900f\u904e\u5408\u7406\u7684\u786c\u9ad4\u5347\u7d1a\uff0c\u4f60\u53ef\u4ee5\u6709\u6548\u7de9\u89e3\u786c\u789f I\/O \u74f6\u9838\u3002\u9996\u8981\u6b65\u9a5f\u662f\u66f4\u63db\u70ba SSD\uff0cSSD \u63d0\u4f9b\u9060\u9ad8\u65bc\u50b3\u7d71\u6a5f\u68b0\u786c\u789f\u7684\u8b80\u5beb\u901f\u5ea6\uff0c\u5f9e\u800c\u986f\u8457\u6539\u5584\u8cc7\u6599\u5b58\u53d6\u6548\u7387\u8207\u6574\u9ad4\u7cfb\u7d71\u6548\u80fd\u3002\u4f60\u9084\u53ef\u4ee5\u4f7f\u7528\u689d\u5e36\u96c6\uff08stripe sets\uff09\uff0c\u5c07 I\/O \u8acb\u6c42\u5206\u6563\u5230\u591a\u9846\u78c1\u789f\u4e0a\u4e26\u884c\u8655\u7406\uff0c\u4ee5\u540c\u6642\u63d0\u5347\u6548\u80fd\u8207\u5bb9\u91cf\u3002\u5982\u679c\u60f3\u9032\u4e00\u6b65\u5e73\u8861\u8ca0\u8f09\uff0c\u53ef\u4ee5\u5617\u8a66 Windows \u53e2\u96c6\uff08Clustering\uff09\u6216\u5206\u6563\u5f0f\u6a94\u6848\u7cfb\u7d71\uff08DFS\uff09\uff0c\u5229\u7528\u591a\u9846\u78c1\u789f\u8207\u591a\u53f0\u4f3a\u670d\u5668\u5206\u64d4\u8cc7\u6599\u58d3\u529b\u3002<\/p>\n \u53ef\u4ee5\u53c3\u8003\u4ee5\u4e0b\u5be6\u7528\u5efa\u8b70\uff1a<\/p>\n \n \u5c0d\u78c1\u789f\u9032\u884c\u91cd\u7d44\uff08\u788e\u7247\u6574\u7406\uff09\uff0c\u4f7f\u8cc7\u6599\u914d\u7f6e\u66f4\u6709\u5e8f\uff0c\u6e1b\u5c11\u5c0b\u9053\u6642\u9593\u3002<\/li>\n \u9664\u975e\u5fc5\u8981\uff0c\u5118\u91cf\u6e1b\u5c11\u6a94\u6848\u58d3\u7e2e\u8207\u52a0\u5bc6\uff0c\u56e0\u70ba\u9019\u4e9b\u64cd\u4f5c\u6703\u589e\u52a0 I\/O \u958b\u92b7\u3002<\/li>\n \u5728 NTFS \u78c1\u789f\u5340\u4e0a\u95dc\u9589\u77ed\u6a94\u540d\u7522\u751f\u8207\u4e0a\u6b21\u5b58\u53d6\u6642\u9593\u66f4\u65b0\uff0c\u4ee5\u6e1b\u5c11\u984d\u5916\u5beb\u5165\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n \u5728\u898f\u5283\u5347\u7d1a\u6642\uff0c\u9700\u8981\u7d9c\u5408\u8003\u91cf\u6210\u672c\u8207\u6548\u76ca\u3002\u4e0b\u9762\u662f\u4e00\u500b\u7c21\u8981\u6982\u89bd\uff1a<\/p>\n \n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n \u6210\u672c\u985e\u578b<\/th>\n \u8aaa\u660e<\/th>\n<\/tr>\n \u76f4\u63a5\u63a1\u8cfc\u6210\u672c<\/td>\n \u5347\u7d1a\u6240\u9700\u7684\u786c\u9ad4\u3001\u8edf\u9ad4\u53ca\u670d\u52d9\u8cbb\u7528\u3002<\/td>\n<\/tr>\n \u4eba\u529b\u8207\u8f49\u63db\u6210\u672c<\/td>\n \u898f\u5283\u3001\u6e2c\u8a66\u8207\u8a13\u7df4\u6240\u6d88\u8017\u7684\u6642\u9593\u8207\u4eba\u529b\u3002<\/td>\n<\/tr>\n \u96b1\u6027\u8207\u6301\u7e8c\u6210\u672c<\/td>\n \u505c\u6a5f\u6642\u9593\u3001\u6574\u5408\u554f\u984c\u4ee5\u53ca\u5f8c\u7e8c\u7dad\u8b77\u8cbb\u7528\u3002<\/td>\n<\/tr>\n \u751f\u7522\u529b\u6536\u76ca<\/td>\n \u66f4\u5feb\u7684\u88dd\u7f6e\u8207\u66f4\u4f73\u7684\u7db2\u8def\u6548\u80fd\u53ef\u4ee5\u7bc0\u7701\u6642\u9593\u3002<\/td>\n<\/tr>\n \u505c\u6a5f\u8207\u7dad\u8b77\u7bc0\u7701<\/td>\n \u65b0\u4f3a\u670d\u5668\u53ef\u4ee5\u6e1b\u5c11\u670d\u52d9\u4e2d\u65b7\u8207\u7dca\u6025\u7dad\u4fee\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u5feb\u53d6\u8207 RAID \u65b9\u6848<\/h3>\n \u85c9\u7531\u5feb\u53d6\u8207 RAID\uff0c\u4f60\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u5347\u5132\u5b58\u6548\u80fd\u3002\u50cf Redis\u3001Memcached \u9019\u985e\u5feb\u53d6\u65b9\u6848\u6703\u628a\u5e38\u7528\u8cc7\u6599\u653e\u5230\u8a18\u61b6\u9ad4\u4e2d\uff0c\u6e1b\u5c11\u5f8c\u7aef\u4f3a\u670d\u5668\u58d3\u529b\u4e26\u52a0\u5feb\u5b58\u53d6\u901f\u5ea6\u3002SSD \u5feb\u53d6\u5247\u5229\u7528\u5feb\u9583\u8a18\u61b6\u9ad4\u5132\u5b58\u71b1\u8cc7\u6599\uff0c\u4f7f\u7cfb\u7d71\u6574\u9ad4\u56de\u61c9\u66f4\u8fc5\u901f\u3002RAID \u7d44\u614b\uff08\u5982 RAID 0\u3001RAID 1\u3001RAID 5 \u7b49\uff09\u65e2\u80fd\u63d0\u4f9b\u5099\u63f4\uff0c\u53c8\u80fd\u63d0\u5347 I\/O \u6548\u80fd\u3002RAID \u63a7\u5236\u5668\u7684\u5beb\u5165\u5feb\u53d6\u93e1\u50cf\uff08write cache mirroring\uff09\u900f\u904e\u628a\u5beb\u5165\u64cd\u4f5c\u8907\u88fd\u5230\u53e6\u4e00\u584a\u5feb\u53d6\u4e2d\u4f86\u4fdd\u8b77\u8cc7\u6599\u5b89\u5168\u3002\u4f60\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u8ca0\u8f09\u8abf\u6821 RAID \u63a7\u5236\u5668\uff0c\u4ee5\u7372\u5f97\u6700\u4f73\u6548\u679c\u3002<\/p>\n \u70ba\u4e86\u4fdd\u6301\u7cfb\u7d71\u5e73\u7a69\u904b\u4f5c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u76e3\u63a7\u5de5\u5177\uff1a<\/p>\n \n iostat\uff1a\u986f\u793a\u78c1\u789f I\/O \u7d71\u8a08\u8cc7\u8a0a\u3002<\/li>\n vmstat\uff1a\u63d0\u4f9b\u8a18\u61b6\u9ad4\u8207 I\/O \u7684\u7d9c\u5408\u7d71\u8a08\u3002<\/li>\n iotop\uff1a\u627e\u51fa\u5360\u7528 I\/O \u8cc7\u6e90\u6700\u591a\u7684\u7a0b\u5e8f\u3002<\/li>\n df\uff1a\u6aa2\u8996\u78c1\u789f\u7a7a\u9593\u4f7f\u7528\u60c5\u6cc1\u3002<\/li>\n<\/ul>\n \u9075\u5faa\u4ee5\u4e0b\u6b65\u9a5f\u53ef\u4ee5\u6700\u5927\u5316\u541e\u5410\u91cf\uff1a<\/p>\n \n \u5c0d\u5de5\u4f5c\u8ca0\u8f09\u9032\u884c\u5206\u985e\uff0c\u4e26\u70ba\u4e0d\u540c\u985e\u578b\u8ca0\u8f09\u5339\u914d\u5408\u9069\u7684\u5132\u5b58\u7b56\u7565\u3002<\/li>\n \u660e\u78ba\u81ea\u5df1\u7684 IOPS \u9700\u6c42\uff0c\u5f9e\u6e90\u982d\u907f\u514d\u74f6\u9838\u3002<\/li>\n \u5c0d\u6bd4\u4e0d\u540c\u5132\u5b58\u6280\u8853\uff0c\u9078\u64c7\u6700\u9069\u5408\u696d\u52d9\u60c5\u5883\u7684\u65b9\u6848\u3002<\/li>\n \u6839\u64da\u8ca0\u8f09\u7279\u6027\u5be6\u4f5c\u5206\u5c64\u5132\u5b58\uff08tiered storage\uff09\u3002<\/li>\n \u7d93\u5e38\u76e3\u63a7\u6548\u80fd\u6307\u6a19\uff0c\u5118\u65e9\u767c\u73fe\u4e26\u89e3\u6c7a\u554f\u984c\u3002<\/li>\n<\/ol>\n \u63d0\u793a\uff1a\u5728\u6b64\u57fa\u790e\u4e0a\uff0c\u5347\u7d1a CPU \u8207\u8a18\u61b6\u9ad4\u3001\u4f7f\u7528\u865b\u64ec\u5316\u6280\u8853\u4e26\u81ea\u52d5\u5316\u6548\u80fd\u7ba1\u7406\uff0c\u9084\u80fd\u9032\u4e00\u6b65\u63d0\u5347\u6574\u9ad4\u8868\u73fe\u3002<\/p><\/blockquote>\n \n <\/div>\n<\/div>\n \u900f\u904e\u4e0a\u6587\uff0c\u4f60\u5df2\u7d93\u4e86\u89e3\u5230\u786c\u789f I\/O \u7684\u78ba\u6703\u9650\u5236\u7f8e\u570b\u4f3a\u670d\u5668\u4e2d\u7684\u5927\u983b\u5bec\u50b3\u8f38\u3002\u5132\u5b58 I\/O \u5e38\u5e38\u5728\u9ad8\u8ca0\u8f09\u60c5\u5883\u4e0b\uff0c\u5c24\u5176\u662f\u5beb\u5165\u64cd\u4f5c\u4e2d\uff0c\u6210\u70ba\u74f6\u9838\u3002\u70ba\u907f\u514d\u9019\u500b\u554f\u984c\uff0c\u4f60\u9700\u8981\u8b93\u5132\u5b58\u6548\u80fd\u8207\u7db2\u8def\u80fd\u529b\u76f8\u5339\u914d\uff1a\u5347\u7d1a\u5230 SSD \u6216\u4f7f\u7528\u5feb\u53d6\u4f86\u52a0\u5feb\u8cc7\u6599\u5b58\u53d6\uff0c\u4e26\u5b9a\u671f\u4f7f\u7528 iPerf3 \u548c GPUDirect Storage \u7b49\u5de5\u5177\u76e3\u63a7\u7cfb\u7d71\u3002\u540c\u6642\uff0c\u8981\u8003\u91cf\u5de5\u4f5c\u8ca0\u8f09\u985e\u578b\u3001\u5ef6\u9072\u4ee5\u53ca\u672a\u4f86\u64f4\u5145\u9700\u6c42\uff0c\u907f\u514d\u53ea\u95dc\u6ce8\u5c16\u5cf0\u4f7f\u7528\u7387\u6216\u5ffd\u8996 I\/O \u7b49\u5f85\u7b49\u5e38\u898b\u8aa4\u5340\u3002\u5168\u9762\u8a55\u4f30\u4f3a\u670d\u5668\u67b6\u69cb\uff0c\u624d\u80fd\u78ba\u4fdd\u7372\u5f97\u6700\u4f73\u6548\u80fd\u3002<\/p>\n \n\n\n\n<\/colgroup>\n\n\n\n\n \u5de5\u5177<\/th>\n \u7528\u9014<\/th>\n<\/tr>\n iPerf3<\/td>\n \u983b\u5bec\u6e2c\u8a66<\/td>\n<\/tr>\n GPUDirect Storage<\/td>\n \u5373\u6642\u983b\u5bec\u76e3\u63a7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u63d0\u793a\uff1a\u5728\u898f\u5283\u7cfb\u7d71\u67b6\u69cb\u6642\uff0c\u8981\u9810\u5148\u70ba\u672a\u4f86\u7684\u8cc7\u6599\u6210\u9577\u9810\u7559\u5132\u5b58\u8207\u983b\u5bec\u7a7a\u9593\u3002<\/p><\/blockquote>\n \u5e38\u898b\u554f\u984c FAQ<\/strong><\/h2>\n \u7f8e\u570b\u4f3a\u670d\u5668\u983b\u5bec\u74f6\u9838\u7684\u4e3b\u8981\u539f\u56e0\u662f\u4ec0\u9ebc\uff1f<\/h3>\n \u7576\u5132\u5b58\u7cfb\u7d71\u7684\u8655\u7406\u901f\u5ea6\u8ddf\u4e0d\u4e0a\u7db2\u8def\u901f\u5ea6\u6642\uff0c\u4f60\u5f80\u5f80\u6703\u9047\u5230\u983b\u5bec\u74f6\u9838\u3002\u5373\u4f7f\u7db2\u8def\u9023\u7dda\u5f88\u5feb\uff0c\u7de9\u6162\u6216\u904e\u8f09\u7684\u786c\u789f\u4e5f\u6703\u9650\u5236\u8cc7\u6599\u50b3\u8f38\u901f\u7387\u3002<\/p>\n \u5982\u4f55\u6aa2\u67e5\u78c1\u789f I\/O \u662f\u5426\u5728\u62d6\u6162\u4f3a\u670d\u5668\uff1f<\/h3>\n \u4f60\u53ef\u4ee5\u4f7f\u7528 iostat<\/code>\u3001vmstat<\/code> \u6216 iotop<\/code> \u7b49\u5de5\u5177\u76e3\u63a7\u78c1\u789f\u6d3b\u52d5\u3002\u5982\u679c\u767c\u73fe\u8f03\u9ad8\u7684 I\/O \u7b49\u5f85\u6642\u9593\u6216\u904e\u9577\u7684\u4f47\u5217\uff0c\u5c31\u8aaa\u660e\u5132\u5b58\u7cfb\u7d71\u5f88\u53ef\u80fd\u662f\u6548\u80fd\u74f6\u9838\u6240\u5728\u3002<\/p>\n SSD \u662f\u5426\u80fd\u5b8c\u5168\u89e3\u6c7a\u983b\u5bec\u554f\u984c\uff1f<\/h3>\n SSD \u5c0d\u6548\u80fd\u63d0\u5347\u5e6b\u52a9\u5f88\u5927\uff0c\u56e0\u70ba\u5b83\u5011\u7684\u8b80\u5beb\u901f\u5ea6\u9060\u9ad8\u65bc HDD\u3002\u4f46\u4f60\u4ecd\u7136\u9700\u8981\u6839\u64da\u5be6\u969b\u5de5\u4f5c\u8ca0\u8f09\u8207\u7db2\u8def\u80fd\u529b\u4f86\u5339\u914d SSD \u7684\u901f\u5ea6\uff0c\u53ea\u6709\u6574\u9ad4\u67b6\u69cb\u5354\u8abf\uff0c\u624d\u80fd\u7372\u5f97\u6700\u4f73\u6548\u679c\u3002<\/p>\n RAID \u80fd\u5426\u6539\u5584\u5927\u983b\u5bec\u60c5\u5883\u4e0b\u7684\u78c1\u789f I\/O\uff1f<\/h3>\n RAID \u65e2\u80fd\u63d0\u5347\u6548\u80fd\uff0c\u53c8\u80fd\u589e\u5f37\u5099\u63f4\u3002\u4f8b\u5982\uff0cRAID 0 \u900f\u904e\u8cc7\u6599\u689d\u5e36\u5316\u4f86\u63d0\u9ad8\u901f\u5ea6\uff0c\u800c RAID 5 \u6216 RAID 10 \u5247\u5728\u901f\u5ea6\u8207\u8cc7\u6599\u5b89\u5168\u4e4b\u9593\u53d6\u5f97\u5e73\u8861\u3002\u61c9\u6839\u64da\u81ea\u8eab\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684 RAID \u7b49\u7d1a\u3002<\/p>\n \u6700\u4f73\u5316\u9ad8\u983b\u5bec\u4f3a\u670d\u5668\u6548\u80fd\u7684\u6700\u4f73\u505a\u6cd5\u662f\u4ec0\u9ebc\uff1f<\/h3>\n \u4f60\u61c9\u8a72\u5347\u7d1a\u5230 SSD\uff0c\u5408\u7406\u4f7f\u7528\u5feb\u53d6\uff0c\u4e26\u5b9a\u671f\u76e3\u63a7\u7cfb\u7d71\u8868\u73fe\u3002\u540c\u6642\u8b93\u5132\u5b58\u80fd\u529b\u8207\u7db2\u8def\u983b\u5bec\u4fdd\u6301\u4e00\u81f4\uff0c\u9078\u64c7\u5408\u9069\u7684 RAID \u67b6\u69cb\uff0c\u4e26\u6301\u7e8c\u66f4\u65b0\u786c\u9ad4\uff0c\u9019\u4e9b\u90fd\u80fd\u5e6b\u52a9\u4f60\u5728\u9ad8\u983b\u5bec\u60c5\u5883\u4e0b\u7372\u5f97\u66f4\u4f73\u4f3a\u670d\u5668\u6548\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" \u4f60\u53ef\u80fd\u6703\u7591\u60d1\uff0chard disk i\/o \u662f\u5426\u6703\u62d6\u6162\u7f8e\u570b\u4f3a\u670d\u5668\u4e0a\u7684\u5927\u983b\u5bec\u50b3\u8f38\u3002\u7b54\u6848\u662f\u6703\u7684\u3002\u7576\u4f60\u5728\u7db2\u8def\u4e2d\u9ad8\u901f\u50b3\u8f38 […]<\/p>\n Read More…<\/a><\/p>\n","protected":false},"author":2,"featured_media":32400,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4815],"tags":[11596,11597,11598,11599,4883],"class_list":["post-32404","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-america-dedicated-server-tc","tag-hard-disk-i-o","tag-disk-i-o-bottleneck","tag-high-bandwidth-transfer","tag-ssd-performance-optimization","tag-us-dedicated-server-tc"],"acf":[],"yoast_head":"\n