{"id":16185,"date":"2024-08-21T14:42:26","date_gmt":"2024-08-21T06:42:26","guid":{"rendered":"https:\/\/92it.top\/?p=16185"},"modified":"2024-08-21T14:42:26","modified_gmt":"2024-08-21T06:42:26","slug":"%e4%bb%80%e4%b9%88%e6%98%af%e7%b3%bb%e7%bb%9f%e5%8f%af%e7%94%a8%e6%80%a7%ef%bc%9f%e5%a6%82%e4%bd%95%e6%8f%90%e5%8d%87%e5%8f%af%e7%94%a8%e6%80%a7%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=16185","title":{"rendered":"\u4ec0\u4e48\u662f\u7cfb\u7edf\u53ef\u7528\u6027\uff1f\u5982\u4f55\u63d0\u5347\u53ef\u7528\u6027\uff1f"},"content":{"rendered":"\n

\u8f6c\u8f7d\uff1a\u4ec0\u4e48\u662f\u7cfb\u7edf\u53ef\u7528\u6027\uff1f\u5982\u4f55\u63d0\u5347\u53ef\u7528\u6027\uff1f<\/a><\/p>\n\n\n\n

\u65e5\u5e38\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u542c\u5230\u7cfb\u7edf\u7684\u53ef\u7528\u6027\u662f\u51e0\u4e2a 9\u8fd9\u6837\u7684\u63cf\u8ff0\uff0c\u56e0\u6b64\uff0c\u8fd9\u7bc7\u6587\u7ae0\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u4ec0\u4e48\u662f\u53ef\u7528\u6027\u3001\u5982\u4f55\u8ba1\u7b97\u53ef\u7528\u6027\u4ee5\u53ca\u63d0\u9ad8\u53ef\u7528\u6027\u7684\u4e00\u4e9b\u5e38\u7528\u7b56\u7565\u3002<\/p>\n\n\n\n

\u4ec0\u4e48\u662f\u7cfb\u7edf\u53ef\u7528\u6027\uff1f<\/strong><\/p>\n\n\n\n

\n\n\n\n

\u7cfb\u7edf\u7684\u53ef\u7528\u6027\uff08Availability\uff09\u662f\u8861\u91cf\u4e00\u4e2a\u7cfb\u7edf\u5728\u7279\u5b9a\u65f6\u95f4\u6bb5\u5185\u80fd\u591f\u6b63\u5e38\u8fd0\u884c\u5e76\u63d0\u4f9b\u670d\u52a1\u7684\u80fd\u529b\u3002<\/p>\n\n\n\n

\u53ef\u7528\u6027\u8ba1\u7b97\u65b9\u5f0f\uff1a<\/p>\n\n\n\n

Availability = Uptime \/ (Uptime + Downtime)<\/pre>\n\n\n\n
    \n
  • Uptime\uff1a\u8fd0\u884c\u65f6\u95f4\uff0c\u7cfb\u7edf\u6b63\u5e38\u8fd0\u884c\u4e14\u53ef\u8bbf\u95ee\u7684\u65f6\u95f4\u6bb5\u3002<\/li>\n\n\n\n
  • Downtime\uff1a\u505c\u673a\u65f6\u95f4\uff0c\u7531\u4e8e\u6545\u969c\u3001\u7ef4\u62a4\u6216\u5176\u4ed6\u95ee\u9898\u800c\u5bfc\u81f4\u7cfb\u7edf\u4e0d\u53ef\u7528\u7684\u65f6\u671f\u3002<\/li>\n<\/ul>\n\n\n\n
    \u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5047\u5982\u4e00\u5e74 365\u5929\uff0c\u505c\u673a\u603b\u65f6\u95f4 2\u5929\uff0c\u90a3\u4e48\u53ef\u7528\u6027\u7684\u8ba1\u7b97\u4e3a\uff1a<\/p>\n\n\n\n
    Availability = (365-2) \/ 365\n             = 363 \/ 365\n             = 0.99452\n\u8f6c\u6362\u6210\u767e\u5206\u6bd4   = 99.452 %<\/pre>\n\n\n\n
    \u53ef\u7528\u6027\u7b49\u7ea7<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    \u7cfb\u7edf\u53ef\u7528\u6027\uff0c\u53ef\u7528\u6027\u901a\u5e38\u7528\u201c9\u201d\u8868\u793a\uff0c\u53ef\u7528\u6027\u8d8a\u9ad8\uff0c\u505c\u673a\u65f6\u95f4\u5c31\u8d8a\u5c11\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n
    \n
    \"\"<\/figure><\/div>\n\n\n
    \u5982\u4f55\u63d0\u5347\u7cfb\u7edf\u53ef\u7528\u6027\uff1f<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    \u63d0\u5347\u7cfb\u7edf\u53ef\u7528\u6027\u7684\u65b9\u6cd5\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n\n\n\n
    \u5197\u4f59\u8bbe\u8ba1<\/strong><\/p>\n\n\n\n
    \u5197\u4f59\u8bbe\u8ba1\u662f\u63d0\u5347\u7cfb\u7edf\u53ef\u7528\u6027\u5e38\u7528\u7684\u65b9\u5f0f\uff0c\u6bd4\u5982\uff0c\u5206\u5e03\u5f0f\u90e8\u7f72\uff0c\u5f02\u5730\u591a\u6d3b\u7b49\uff0c\u5197\u4f59\u8bbe\u8ba1\u5e38\u89c1\u7684\u6280\u672f\u7b56\u7565\u4e3b\u8981\u6709\u4ee5\u4e0b 3\u79cd\uff1a<\/p>\n\n\n\n
      \n
    • \u670d\u52a1\u5668\u5197\u4f59<\/strong>\uff1a\u90e8\u7f72\u591a\u4e2a\u670d\u52a1\u5668\u6765\u5904\u7406\u8bf7\u6c42\uff0c\u786e\u4fdd\u5982\u679c\u4e00\u4e2a\u670d\u52a1\u5668\u51fa\u73b0\u6545\u969c\uff0c\u5176\u4ed6\u670d\u52a1\u5668\u53ef\u4ee5\u7ee7\u7eed\u63d0\u4f9b\u670d\u52a1\u3002<\/li>\n\n\n\n
    • \u6570\u636e\u5e93\u5197\u4f59<\/strong>\uff1a\u521b\u5efa\u4e00\u4e2a\u526f\u672c\u6570\u636e\u5e93\uff0c\u5982\u679c\u4e3b\u6570\u636e\u5e93\u53d1\u751f\u6545\u969c\uff0c\u8be5\u6570\u636e\u5e93\u53ef\u4ee5\u63a5\u7ba1\u3002<\/li>\n\n\n\n
    • \u5730\u7406\u5197\u4f59<\/strong>\uff1a\u5c06\u8d44\u6e90\u5206\u5e03\u5728\u591a\u4e2a\u5730\u7406\u4f4d\u7f6e\uff0c\u4ee5\u51cf\u8f7b\u533a\u57df\u6545\u969c\u7684\u5f71\u54cd\u3002<\/li>\n<\/ul>\n\n\n\n
      \u6545\u969c\u68c0\u6d4b\u4e0e\u81ea\u52a8\u6062\u590d<\/strong><\/p>\n\n\n\n
      \u5f53\u68c0\u6d4b\u5230\u6545\u969c\u65f6\uff0c\u6545\u969c\u5207\u6362\u673a\u5236\u4f1a\u81ea\u52a8\u5207\u6362\u5230\u5197\u4f59\u7cfb\u7edf\u3002\u5e38\u7528\u7684\u6280\u672f\u7b56\u7565\u6709\uff1a<\/p>\n\n\n\n
        \n
      • \u76d1\u63a7\u7cfb\u7edf<\/strong>\uff1a\u4f7f\u7528\u76d1\u63a7\u5de5\u5177\uff08\u5982Nagios\u3001Zabbix\uff09\u5b9e\u65f6\u76d1\u63a7\u7cfb\u7edf\u72b6\u6001\uff0c\u53ca\u65f6\u53d1\u73b0\u95ee\u9898\u3002<\/li>\n\n\n\n
      • \u81ea\u52a8\u5316\u6062\u590d<\/strong>\uff1a\u914d\u7f6e\u81ea\u52a8\u5316\u811a\u672c\u6216\u670d\u52a1\uff08\u5982AWS Auto Scaling\uff09\u5728\u68c0\u6d4b\u5230\u6545\u969c\u65f6\u81ea\u52a8\u91cd\u542f\u6216\u66ff\u6362\u6545\u969c\u7ec4\u4ef6\u3002<\/li>\n<\/ul>\n\n\n\n
        \u6570\u636e\u5907\u4efd\u4e0e\u6062\u590d<\/strong><\/p>\n\n\n\n
        \u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u7edd\u5927\u90e8\u7f72\u4e1a\u52a1\u90fd\u662f\u5bf9\u6570\u636e\u8fdb\u884c\u5904\u7406\uff0c\u56e0\u6b64\u6570\u636e\u7684\u91cd\u8981\u6027\u4e0d\u8a00\u800c\u55bb\uff0c\u5bf9\u4e8e\u6570\u636e\u53ef\u7528\u6027\u5e38\u7528\u7684\u6280\u672f\u70b9\u6709\uff1a<\/p>\n\n\n\n
          \n
        • \u5b9a\u671f\u5907\u4efd<\/strong>\uff1a\u5b9a\u671f\u5907\u4efd\u91cd\u8981\u6570\u636e\uff0c\u786e\u4fdd\u5728\u6570\u636e\u4e22\u5931\u6216\u635f\u574f\u65f6\u80fd\u591f\u5feb\u901f\u6062\u590d\u3002<\/li>\n\n\n\n
        • \u707e\u96be\u6062\u590d\u8ba1\u5212<\/strong>\uff1a\u5236\u5b9a\u5e76\u6d4b\u8bd5\u707e\u96be\u6062\u590d\u8ba1\u5212\uff0c\u4ee5\u786e\u4fdd\u5728\u91cd\u5927\u6545\u969c\u6216\u707e\u96be\u53d1\u751f\u65f6\u80fd\u591f\u8fc5\u901f\u6062\u590d\u7cfb\u7edf\u8fd0\u8425\u3002<\/li>\n<\/ul>\n\n\n\n
          \u8d1f\u8f7d\u5747\u8861<\/strong><\/p>\n\n\n\n
          \u8d1f\u8f7d\u5747\u8861\u5728\u591a\u4e2a\u670d\u52a1\u5668\u4e4b\u95f4\u5206\u914d\u4f20\u5165\u7684\u7f51\u7edc\u6d41\u91cf\uff0c\u4ee5\u786e\u4fdd\u6ca1\u6709\u5355\u4e2a\u670d\u52a1\u5668\u6210\u4e3a\u74f6\u9888\uff0c\u4ece\u800c\u63d0\u9ad8\u6027\u80fd\u548c\u53ef\u7528\u6027\u3002<\/p>\n\n\n\n
            \n
          • \u8d1f\u8f7d\u5747\u8861\u5668<\/strong>\uff1a\u4f7f\u7528\u8d1f\u8f7d\u5747\u8861\u5668\uff08\u5982Nginx\u3001HAProxy\uff09\u5c06\u8bf7\u6c42\u5206\u53d1\u5230\u591a\u4e2a\u670d\u52a1\u5668\uff0c\u907f\u514d\u5355\u4e2a\u670d\u52a1\u5668\u8fc7\u8f7d\u3002<\/li>\n\n\n\n
          • \u5206\u5e03\u5f0f\u7cfb\u7edf<\/strong>\uff1a\u8bbe\u8ba1\u5206\u5e03\u5f0f\u7cfb\u7edf\u67b6\u6784\uff0c\u5c06\u5de5\u4f5c\u8d1f\u8f7d\u5206\u5e03\u5230\u591a\u4e2a\u8282\u70b9\u3002<\/li>\n<\/ul>\n\n\n\n
            \u5bb9\u9519\u8bbe\u8ba1<\/strong><\/p>\n\n\n\n
            \u5bb9\u9519\u8bbe\u8ba1\uff08Fault Tolerance Design\uff09\uff0c\u65e8\u5728\u4f7f\u7cfb\u7edf\u80fd\u591f\u5728\u67d0\u4e9b\u7ec4\u4ef6\u53d1\u751f\u6545\u969c\u65f6\u4ecd\u7136\u7ee7\u7eed\u6b63\u5e38\u8fd0\u884c\uff0c\u5b83\u7684\u6838\u5fc3\u7406\u5ff5\u662f\u901a\u8fc7\u5197\u4f59\u548c\u5176\u4ed6\u6280\u672f\u624b\u6bb5\uff0c\u907f\u514d\u5355\u70b9\u6545\u969c\u5bfc\u81f4\u7cfb\u7edf\u6574\u4f53\u5931\u6548\u3002<\/p>\n\n\n\n
            \u4ee5\u4e0b\u662f\u5bb9\u9519\u8bbe\u8ba1\u7684\u4e00\u4e9b\u5177\u4f53\u65b9\u6cd5\u548c\u6280\u672f\uff1a<\/p>\n\n\n\n
              \n
            • \u65e0\u72b6\u6001\u670d\u52a1<\/strong>\uff1a\u8bbe\u8ba1\u65e0\u72b6\u6001\u670d\u52a1\uff0c\u4f7f\u5f97\u670d\u52a1\u5b9e\u4f8b\u53ef\u4ee5\u968f\u65f6\u88ab\u66ff\u6362\u800c\u4e0d\u5f71\u54cd\u6574\u4f53\u7cfb\u7edf\u3002<\/li>\n\n\n\n
            • \u6570\u636e\u590d\u5236<\/strong>\uff1a\u4f7f\u7528\u6570\u636e\u590d\u5236\u6280\u672f\uff08\u5982\u6570\u636e\u5e93\u7684\u4e3b\u4ece\u590d\u5236\uff09\u4fdd\u8bc1\u6570\u636e\u7684\u9ad8\u53ef\u7528\u6027\u3002<\/li>\n<\/ul>\n\n\n\n
              \u5b9a\u671f\u7ef4\u62a4\u4e0e\u66f4\u65b0<\/strong><\/p>\n\n\n\n
              \u5728\u73b0\u5b9e\u751f\u6d3b\u4e2d\uff0c\u4e0d\u7ba1\u662f\u4eba\u7684\u5065\u5eb7\u8fd8\u662f\u673a\u5668\u6216\u8005\u5176\u4ed6\u7684\u5065\u5eb7\uff0c\u90fd\u9700\u8981\u5b9a\u671f\u7ef4\u62a4\uff0c\u5bf9\u4e8e\u7cfb\u7edf\u6765\u8bf4\u4e5f\u662f\u4e00\u6837\u7684\u9053\u7406\uff0c\u901a\u8fc7\u5b9a\u671f\u7684\u7ef4\u62a4\u548c\u66f4\u65b0\uff0c\u53ef\u4ee5\u53ca\u65f6\u53d1\u73b0\u548c\u89e3\u51b3\u6f5c\u5728\u95ee\u9898\uff0c\u9632\u6b62\u7cfb\u7edf\u6545\u969c\uff0c\u63d0\u5347\u7cfb\u7edf\u7684\u6574\u4f53\u53ef\u7528\u6027\u3002<\/p>\n\n\n\n
              \u4ee5\u4e0b\u662f\u5b9a\u671f\u7ef4\u62a4\u4e0e\u66f4\u65b0\u7684\u4e3b\u8981\u7b56\u7565\uff1a<\/p>\n\n\n\n
                \n
              • \u8865\u4e01\u7ba1\u7406<\/strong>\uff1a\u53ca\u65f6\u5e94\u7528\u5b89\u5168\u8865\u4e01\u548c\u7cfb\u7edf\u66f4\u65b0\uff0c\u9632\u6b62\u5df2\u77e5\u6f0f\u6d1e\u88ab\u5229\u7528\u3002<\/li>\n\n\n\n
              • \u5065\u5eb7\u68c0\u67e5<\/strong>\uff1a\u5b9a\u671f\u8fdb\u884c\u7cfb\u7edf\u5065\u5eb7\u68c0\u67e5\uff0c\u53d1\u73b0\u6f5c\u5728\u95ee\u9898\u5e76\u53ca\u65f6\u4fee\u590d\u3002<\/li>\n<\/ul>\n\n\n\n
                \u4f7f\u7528\u9ad8\u53ef\u7528\u6027\u4e91\u670d\u52a1<\/strong><\/p>\n\n\n\n
                  \n
                • \u4e91\u670d\u52a1\u63d0\u4f9b\u5546\u7684HA\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a\u5229\u7528\u4e91\u670d\u52a1\u63d0\u4f9b\u5546\u63d0\u4f9b\u7684\u9ad8\u53ef\u7528\u6027\u89e3\u51b3\u65b9\u6848\uff0c\u5982\u591a\u533a\u57df\u90e8\u7f72\u3001\u81ea\u52a8\u6545\u969c\u8f6c\u79fb\u7b49\u3002<\/li>\n<\/ul>\n\n\n\n
                  \u7f51\u7edc\u4f18\u5316<\/strong><\/p>\n\n\n\n
                    \n
                  • \u5197\u4f59\u7f51\u7edc\u8fde\u63a5<\/strong>\uff1a\u914d\u7f6e\u5197\u4f59\u7684\u7f51\u7edc\u8fde\u63a5\uff0c\u907f\u514d\u5355\u70b9\u7f51\u7edc\u6545\u969c\u3002<\/li>\n\n\n\n
                  • \u4f18\u5316\u7f51\u7edc\u914d\u7f6e<\/strong>\uff1a\u4f7f\u7528CDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u52a0\u901f\u5185\u5bb9\u4ea4\u4ed8\uff0c\u51cf\u5c11\u7f51\u7edc\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
                    \u8f6c\u8f7d\uff1a\u4ec0\u4e48\u662f\u7cfb\u7edf\u53ef\u7528\u6027\uff1f\u5982\u4f55\u63d0\u5347\u53ef\u7528\u6027\uff1f \u65e5\u5e38\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u542c\u5230\u7cfb\u7edf\u7684\u53ef\u7528\u6027\u662f\u51e0\u4e2a 9\u8fd9\u6837\u7684\u63cf\u8ff0\uff0c\u56e0\u6b64\uff0c\u8fd9\u7bc7 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/16185"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16185"}],"version-history":[{"count":1,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/16185\/revisions"}],"predecessor-version":[{"id":16187,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/16185\/revisions\/16187"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16185"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16185"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}