\u5b58\u50a8\u9009\u62e9\u51b3\u7b56\u77e9\u9635<\/strong><\/h2>\n

\u4f7f\u7528\u8fd9\u4e2a\u6280\u672f\u51b3\u7b56\u6846\u67b6\u8fdb\u884c\u5b58\u50a8\u9009\u62e9\uff1a<\/p>\n

\r\nfunction calculateStorageScore(requirements) {\r\n    let score = {\r\n        hdd: 0,\r\n        ssd: 0\r\n    };\r\n    \r\n    \/\/ \u8bc4\u5206\u56e0\u7d20\r\n    const FACTORS = {\r\n        iops_needed: {\r\n            threshold: 10000,\r\n            hdd_weight: -2,\r\n            ssd_weight: 2\r\n        },\r\n        budget_per_tb: {\r\n            threshold: 50,\r\n            hdd_weight: 2,\r\n            ssd_weight: -1\r\n        },\r\n        capacity_needed: {\r\n            threshold: 10,\r\n            hdd_weight: 1,\r\n            ssd_weight: -1\r\n        }\r\n    };\r\n    \r\n    \/\/ \u57fa\u4e8e\u9700\u6c42\u8ba1\u7b97\u5f97\u5206\r\n    return score;\r\n}\r\n<\/code><\/pre>\n
\u5b9e\u8df5\u5b9e\u65bd\u6307\u5357<\/strong><\/h2>\n
\u5728\u4f01\u4e1a\u73af\u5883\u4e2d\u5b9e\u65bd\u5b58\u50a8\u89e3\u51b3\u65b9\u6848\u65f6\uff0c\u8bf7\u8003\u8651\u4ee5\u4e0b\u7cfb\u7edf\u7ea7\u4f18\u5316\uff1a<\/p>\n
\r\n# \u5b58\u50a8\u6808\u914d\u7f6e\r\n\/etc\/sysctl.conf \u8c03\u6574\uff1a\r\n\r\n# \u7528\u4e8eSSD\uff1a\r\nvm.dirty_ratio = 10\r\nvm.dirty_background_ratio = 5\r\nvm.swappiness = 10\r\n\r\n# \u7528\u4e8eHDD\uff1a\r\nvm.dirty_ratio = 20\r\nvm.dirty_background_ratio = 10\r\nvm.swappiness = 30\r\n\r\n# \u6587\u4ef6\u7cfb\u7edf\u9009\u62e9\r\nSSD\uff1aext4\uff0c\u4f7f\u7528 noatime,discard\r\nHDD\uff1aXFS\uff0c\u4f7f\u7528 noatime,logbufs=8\r\n<\/code><\/pre>\n
\u7ed3\u8bba<\/strong><\/h2>\n
\u5728\u670d\u52a1\u5668\u79df\u7528\u548c\u670d\u52a1\u5668\u6258\u7ba1\u73af\u5883\u4e2d\uff0cHDD\u548cSSD\u5b58\u50a8\u89e3\u51b3\u65b9\u6848\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u5de5\u4f5c\u8d1f\u8f7d\u7279\u5f81\u3001\u6027\u80fd\u9700\u6c42\u548c\u9884\u7b97\u9650\u5236\u3002\u867d\u7136SSD\u5728\u9700\u8981\u4f4e\u5ef6\u8fdf\u548c\u9ad8IOPS\u7684\u9ad8\u6027\u80fd\u573a\u666f\u4e2d\u8868\u73b0\u51fa\u8272\uff0c\u4f46\u5728\u4ee5\u6bcfGB\u6210\u672c\u4e3a\u91cd\u8981\u8003\u8651\u56e0\u7d20\u7684\u5927\u89c4\u6a21\u5b58\u50a8\u9700\u6c42\u4e2d\uff0cHDD\u4ecd\u7136\u5177\u6709\u7ade\u4e89\u529b\u3002\u73b0\u4ee3\u4f01\u4e1a\u67b6\u6784\u901a\u5e38\u4ece\u6df7\u5408\u65b9\u6848\u4e2d\u53d7\u76ca\uff0c\u5145\u5206\u5229\u7528\u4e24\u79cd\u6280\u672f\u7684\u4f18\u52bf\u3002<\/p>\n
\u4e3a\u4e86\u5b9e\u73b0\u6700\u4f73\u670d\u52a1\u5668\u5b58\u50a8\u914d\u7f6e\uff0c\u8bf7\u6839\u636e\u672c\u6307\u5357\u4e2d\u6982\u8ff0\u7684\u6027\u80fd\u6307\u6807\u3001\u6210\u672c\u8003\u8651\u56e0\u7d20\u548c\u6280\u672f\u8981\u6c42\u8bc4\u4f30\u60a8\u7684\u5177\u4f53\u7528\u4f8b\u3002\u5728\u90e8\u7f72\u4f01\u4e1a\u7ea7\u670d\u52a1\u5668\u79df\u7528\u89e3\u51b3\u65b9\u6848\u65f6\uff0c\u5efa\u8bae\u54a8\u8be2\u5b58\u50a8\u4e13\u5bb6\uff0c\u4ee5\u786e\u4fdd\u60a8\u7684\u5b58\u50a8\u67b6\u6784\u65e2\u6ee1\u8db3\u5f53\u524d\u9700\u6c42\uff0c\u53c8\u5177\u5907\u672a\u6765\u53ef\u6269\u5c55\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728\u4f01\u4e1a\u5b58\u50a8\u89e3\u51b3\u65b9\u6848\u9886\u57df\uff0c\u5728\u786c\u76d8\u9a71\u52a8\u5668\uff08HDD\uff09\u548c\u56fa\u6001\u9a71\u52a8\u5668\uff08SSD\uff09\u4e4b\u95f4\u505a\u51fa\u9009\u62e9\u53ef\u4ee5\u663e\u8457\u5f71\u54cd\u7f8e\u56fd\u670d\u52a1\u5668\u7684\u6027\u80fd\u3002\u672c\u7efc\u5408\u6307\u5357\u63a2\u8ba8\u4e86\u8fd9\u4e24\u79cd\u5b58\u50a8\u6280\u672f\u5728\u73b0\u4ee3\u670d\u52a1\u5668\u79df\u7528\u548c\u670d\u52a1\u5668\u6258\u7ba1\u73af\u5883\u4e2d\u7684\u6700\u4f73\u4f7f\u7528\u573a\u666f\u3002 \u7406\u89e3\u5b58\u50a8\u6280\u672f\u57fa\u7840 \u5728\u6df1\u5165\u63a2\u8ba8\u5177\u4f53\u7528\u4f8b\u4e4b\u524d\uff0c\u8ba9\u6211\u4eec\u5148\u4e86\u89e3\u8fd9\u4e9b\u6280\u672f\u7684\u57fa\u672c\u5de5\u4f5c\u539f\u7406\u3002HDD\u4f7f\u7528\u78c1\u76d8\u76d8\u7247\u548c\u673a\u68b0\u8bfb\u5199\u5934\uff0c\u901a\u5e38\u4ee55400\u523015000 RPM\u7684\u901f\u5ea6\u8fd0\u884c\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0cSSD\u91c7\u7528NAND\u95ea\u5b58\u5355\u5143\uff0c\u65e0\u9700\u79fb\u52a8\u90e8\u4ef6\u5373\u53ef\u8bbf\u95ee\u6570\u636e\u3002\u8fd9\u4e00\u57fa\u672c\u5dee\u5f02\u9020\u5c31\u4e86\u4e0d\u540c\u7684\u6027\u80fd\u7279\u5f81\uff0c\u4ece\u800c\u5f71\u54cd\u5b83\u4eec\u7684\u7406\u60f3\u5e94\u7528\u573a\u666f\u3002 HDD\u6027\u80fd\u6307\u6807\u548c\u4f7f\u7528\u573a\u666f \u5728\u6210\u672c\u6bcfGB\u548c\u5927\u5bb9\u91cf\u5b58\u50a8\u81f3\u5173\u91cd\u8981\u7684\u7279\u5b9a\u573a\u666f\u4e2d\uff0cHDD\u8868\u73b0\u51fa\u8272\u3002\u8ba9\u6211\u4eec\u5206\u6790\u5173\u952e\u6027\u80fd\u6307\u6807\uff1a # \u5178\u578bHDD\u6027\u80fd\u6307\u6807 \u987a\u5e8f\u8bfb\u53d6\uff1a80-160 MB\/s \u987a\u5e8f\u5199\u5165\uff1a80-160 MB\/s \u968f\u673a4K\u8bfb\u53d6\uff08IOPS\uff09\uff1a80-150 \u968f\u673a4K\u5199\u5165\uff08IOPS\uff09\uff1a80-150 \u5e73\u5747\u5ef6\u8fdf\uff1a4.16ms\uff08\u9002\u7528\u4e8e7200 RPM\u9a71\u52a8\u5668\uff09 HDD\u4e3b\u8981\u5e94\u7528\u573a\u666f\u5305\u62ec\uff1a \u5907\u4efd\u670d\u52a1\u5668\uff1a\u4f18\u5148\u8003\u8651\u5bb9\u91cf\u800c\u975e\u901f\u5ea6\u7684\u5927\u89c4\u6a21\u6570\u636e\u5907\u4efd\u64cd\u4f5c \u5f52\u6863\u5b58\u50a8\uff1a\u8bbf\u95ee\u9891\u7387\u4f4e\u7684\u957f\u671f\u6570\u636e\u4fdd\u5b58 \u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff08CDN\uff09\uff1a\u5b58\u50a8\u987a\u5e8f\u8bfb\u53d6\u6027\u80fd\u8db3\u591f\u7684\u9759\u6001\u5185\u5bb9 \u51b7\u5b58\u50a8\u89e3\u51b3\u65b9\u6848\uff1a\u9700\u8981\u6210\u672c\u6548\u76ca\u5b58\u50a8\u7684\u6781\u5c11\u8bbf\u95ee\u6570\u636e \u6027\u80fd\u76d1\u63a7\u548c\u7ef4\u62a4 \u5b9e\u65bd\u4ee5\u4e0b\u76d1\u63a7\u547d\u4ee4\u4ee5\u5b9e\u73b0\u6700\u4f73\u5b58\u50a8\u7ba1\u7406\uff1a # SSD\u5065\u5eb7\u68c0\u67e5 smartctl -A \/dev\/sda | grep “Media_Wearout_Indicator” # HDD\u6027\u80fd\u76d1\u63a7 iostat -xd 1 # \u8f93\u51fa\u5206\u6790\uff1a # %util – \u5e26\u5bbd\u5229\u7528\u7387 # await – \u5e73\u5747I\/O\u7b49\u5f85\u65f6\u95f4 # r\/s, w\/s – \u6bcf\u79d2\u8bfb\u5199\u6b21\u6570 # IOPS\u6d4b\u91cf fio –filename=\/dev\/sda […]<\/p>\n
Read More…<\/a><\/p>\n","protected":false},"author":3,"featured_media":21438,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4816],"tags":[5849,5848,5850,4490,4453],"class_list":["post-21460","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-america-dedicated-server-sc","tag-storage-performance-sc","tag-hdd-vs-ssd-sc","tag-data-center-solutions-sc","tag-enterprise-storage-sc","tag-server-storage-sc"],"acf":[],"yoast_head":"\n