{"id":3666,"date":"2018-08-19T01:51:39","date_gmt":"2018-08-18T17:51:39","guid":{"rendered":"http:\/\/www.brofive.org\/?p=3666"},"modified":"2018-08-19T01:52:24","modified_gmt":"2018-08-18T17:52:24","slug":"%e5%8f%af%e9%9d%a0%e6%80%a7%e3%80%81%e5%8f%af%e7%94%a8%e6%80%a7%e3%80%81%e6%8c%81%e4%b9%85%e6%80%a7%e7%ad%89%e4%b8%89%e4%b8%aa%e6%a6%82%e5%bf%b5","status":"publish","type":"post","link":"http:\/\/www.brofive.net\/?p=3666","title":{"rendered":"\u53ef\u9760\u6027\u3001\u53ef\u7528\u6027\u3001\u6301\u4e45\u6027\u7b49\u4e09\u4e2a\u6982\u5ff5"},"content":{"rendered":"<p><span style=\"font-size: large;\">\u8fd9\u51e0\u4e2a\u6982\u5ff5\u7ecf\u5e38\u88ab\u6df7\u7528\uff0c\u800c\u5b9e\u9645\u4e0a\u4ed6\u4eec\u7684\u542b\u4e49\u5e76\u4e0d\u4e00\u6837\uff0c\u800c\u4e14\u9488\u5bf9\u7684\u573a\u666f\u548c\u9886\u57df\u90fd\u5f88\u4e0d\u4e00\u6837\uff0c\u4e0b\u9762\u5206\u522b\u6765\u8bf4\u4e00\u4e0b\uff1a<\/span><\/p>\n<p><span style=\"font-size: large;\">1\u3001<strong>\u53ef\u9760\u6027\uff08Reliability\uff09\u3002<\/strong>\u9488\u5bf9\u901a\u7528\u7cfb\u7edf\u7684\u6307\u6807\u3002\u901a\u5e38\u5728\u786c\u4ef6\u7cfb\u7edf\u4e2d\u4f1a\u51fa\u73b0\u5730\u591a\u4e00\u4e9b\u3002\u4e3b\u8981\u662f\u6307\u4e00\u4e2a\u7cfb\u7edf\uff08\u8bbe\u5907\uff09\u5728\u7ea6\u5b9a\u6761\u4ef6\u4e0b\u5b8c\u6210\u65e2\u5b9a\u529f\u80fd\u7684\u6982\u7387\u3002\u8861\u91cf\u53ef\u9760\u6027\u7684\u6307\u6807\u6709FR\uff08\u6545\u969c\u7387\uff09\u3001MTBF\/MTTF\u3001MTTR\u7b49\u3002\u8f6f\u4ef6\u4e5f\u662f\u5b58\u5728\u53ef\u9760\u6027\u7684\uff0c\u4f46\u662f\u8f6f\u4ef6\u7684\u53ef\u9760\u6027\u4e00\u822c\u4ec5\u662f\u4e00\u4e2a\u5c40\u90e8\uff0c\u548c\u786c\u4ef6\u7ed3\u5408\u5728\u4e00\u8d77\uff0c\u6784\u6210\u7cfb\u7edf\u540e\uff0c\u5176\u53ef\u9760\u6027\u7684\u542b\u4e49\u624d\u66f4\u4e3a\u5168\u9762\u3002<\/span><\/p>\n<p><a href=\"http:\/\/www.brofive.net\/wp-content\/uploads\/2018\/08\/image-27.png\"><img loading=\"lazy\" decoding=\"async\" style=\"display: inline; border: 0px;\" title=\"image\" src=\"http:\/\/www.brofive.net\/wp-content\/uploads\/2018\/08\/image_thumb-16.png\" alt=\"image\" width=\"773\" height=\"280\" border=\"0\" \/><\/a><\/p>\n<p><span style=\"font-size: large;\">2\u3001<strong>\u53ef\u7528\u6027\uff08Availability\uff09<\/strong>\u3002\u9488\u5bf9\u901a\u7528\u7cfb\u7edf\u7684\u6307\u6807\u3002\u5728\u8f6f\u4ef6\u548c\u786c\u4ef6\u7cfb\u7edf\u4e2d\u90fd\u4f1a\u4f7f\u7528\uff0c\u53ef\u7528\u6027\u662f\u4ece\u53ef\u9760\u6027\u63a8\u5bfc\u51fa\u6765\u7684\u3002\u53ef\u7528\u6027\u662f\u6307\u7cfb\u7edf\u65e0\u6545\u969c\u8fd0\u884c\u7684\u65f6\u95f4\u5360\u6bd4\uff0c\u4e5f\u5c31\u662f\u6211\u5728<a href=\"http:\/\/www.brofive.net\/?p=3655\">\u524d\u6587\u4e2d\u63d0\u5230\u76845N\u30013N5\u7b49\u6307\u6807<\/a>\u3002\u5927\u4f53\u8ba1\u7b97\u516c\u5f0f\uff1aAvailability = MTBF\/(MTBF + MTTR)<\/span><\/p>\n<p><span style=\"font-size: large;\"><strong>3\u3001\u6301\u4e45\u6027\uff08Durability\uff09<\/strong>\u3002\u6700\u521d\u4e5f\u662f\u9488\u5bf9\u901a\u7528\u7cfb\u7edf\u7684\u6307\u6807\uff0c\u6307\u5728\u7269\u7406\u4ea7\u54c1\u8bbe\u8ba1\u7684\u751f\u547d\u5468\u671f\u5185\uff0c\u7cfb\u7edf\u4fdd\u6301\u53ef\u7528\uff0c\u800c\u65e0\u9700\u91cd\u5ea6\u7ef4\u62a4\/\u7ef4\u4fee\u7684\u80fd\u529b\u3002\u8fd9\u4e2a\u548c\u53ef\u7528\u6027\u57fa\u672c\u4e0a\u5c31\u662f\u4e00\u4e2a\u542b\u4e49\u3002\u4f46\u662f\u968f\u7740\u6570\u636e\u5e93\u7684\u63a8\u5e7f\u4f7f\u7528\uff0cACID\u6982\u5ff5\u628a\u6301\u4e45\u6027D\u7eb3\u5165\u9488\u5bf9\u6570\u636e\u7cfb\u7edf\u7684\u6307\u6807\u4e2d\u3002\u901a\u5e38\u7528\u5728\u5b58\u50a8\u3001\u6570\u636e\u5e93\u7b49\u7cfb\u7edf\u4e2d\uff0c\u6301\u4e45\u6027\u4fdd\u8bc1\u6570\u636e\u88ab\u771f\u6b63\u5730\u5199\u5230\u975e\u6613\u5931\u5b58\u50a8\u7cfb\u7edf\u4e0a\u3002\u5230\u4e86\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u4ee5\u53ca\u540e\u9762\u7684\u4e91\u8ba1\u7b97\u65f6\u4ee3\uff0c\u6301\u4e45\u6027\u7684\u542b\u4e49\u53c8\u52a0\u5f3a\u4e86\uff0c\u610f\u601d\u662f\u5206\u5e03\u5f0f\u7cfb\u7edf\u5df2\u7ecf\u77e5\u9053\u6570\u636e\u5199\u5b8c\u4e86\uff08eg. \u5199\u5b8c\u4e86\u6240\u6709\u526f\u672c\u6216\u8005\u5199\u5b8c\u4e86\u90e8\u5206\u526f\u672c\u548c\u65e5\u5fd7\u7b49\uff09<\/span><\/p>\n<p><em>Durability<\/em><em> guarantees that once a transaction has been committed, it will remain committed even in the case of a system failure (e.g., power outage or <\/em><em>crash<\/em><em>). This usually means that completed transactions (or their effects) are recorded in <\/em><em>non-volatile memory<\/em><em>.<\/em><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: large;\">\u9664\u6b64\u4ee5\u5916\uff0c\u4e00\u4e2a\u7cfb\u7edf\u8fd8\u6709\u5b89\u5168\u6027\u3001\u53ef\u4f38\u7f29\u6027\u3001\u53ef\u8fd0\u8425\u53ef\u7ba1\u7406\u7b49\u5404\u79cd\u5c5e\u6027\u3002\u6240\u6709\u8fd9\u4e9b\u6982\u5ff5\u7ecf\u5e38\u88ab\u5f04\u6df7\uff0c\u6709\u65f6\u5019\u4e5f\u53ea\u597d\u88c5\u7cca\u6d82\uff0c\u6d4f\u89c8\u4e86Intel\u3001Microsoft\u3001Cisco\u3001AWS\u7b49\u5916\u4f01\u7684\u82f1\u6587\u6587\u6863\uff0c\u611f\u89c9\u5176\u4f7f\u7528\u8fd8\u662f\u6bd4\u8f83\u51c6\u786e\u7684\u3002\u4e00\u4e9b\u56fd\u5185\u4f01\u4e1a\u7684\u82f1\u6587\u6587\u6863\uff0c\u5c31\u51fa\u73b0\u4e86\u4e71\u7528\u7684\u60c5\u51b5\uff0c\u534e\u4e3a\u505a\u7684\u5f88\u4e0d\u9519\u4e86\uff0c\u4f46\u662f\u4e5f\u6709\u9519\u6f0f~<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: large;\">\u76f8\u5173\u4fe1\u606f\uff1a<\/span><\/p>\n<ol>\n<li><a title=\"http:\/\/www.brofive.net\/?p=3655\" href=\"http:\/\/www.brofive.net\/?p=3655\">\u5b8c\u6574\u7684\u53ef\u7528\u6027\u5b9a\u4e49\uff1a\u4ece9\u4e2a5\u52309\u4e2a9<\/a><\/li>\n<li><a title=\"https:\/\/en.wikipedia.org\/wiki\/Mean_time_between_failures\" href=\"https:\/\/en.wikipedia.org\/wiki\/Mean_time_between_failures\">MTBF<\/a><\/li>\n<li><a title=\"http:\/\/www.eventhelix.com\/RealtimeMantra\/FaultHandling\/reliability_availability_basics.htm#MTTR\" href=\"http:\/\/www.eventhelix.com\/RealtimeMantra\/FaultHandling\/reliability_availability_basics.htm#MTTR\">Reliability and availability basics<\/a><\/li>\n<li><a title=\"https:\/\/en.wikipedia.org\/wiki\/Durability\" href=\"https:\/\/en.wikipedia.org\/wiki\/Durability\">Durability<\/a><\/li>\n<li><a title=\"https:\/\/en.wikipedia.org\/wiki\/ACID_(computer_science)\" href=\"https:\/\/en.wikipedia.org\/wiki\/ACID_(computer_science)\">ACID<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u51e0\u4e2a\u6982\u5ff5\u7ecf\u5e38\u88ab\u6df7\u7528\uff0c\u800c\u5b9e\u9645\u4e0a\u4ed6\u4eec\u7684\u542b\u4e49\u5e76\u4e0d\u4e00\u6837\uff0c\u800c\u4e14\u9488\u5bf9\u7684\u573a\u666f\u548c\u9886\u57df\u90fd\u5f88\u4e0d\u4e00\u6837\uff0c\u4e0b\u9762\u5206\u522b\u6765\u8bf4\u4e00\u4e0b\uff1a 1\u3001\u53ef\u9760&#8230;<\/p>\n","protected":false},"author":1,"featured_media":3664,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,284,128],"tags":[467,466,468,465,464],"views":14357,"_links":{"self":[{"href":"http:\/\/www.brofive.net\/index.php?rest_route=\/wp\/v2\/posts\/3666"}],"collection":[{"href":"http:\/\/www.brofive.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.brofive.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.brofive.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.brofive.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3666"}],"version-history":[{"count":2,"href":"http:\/\/www.brofive.net\/index.php?rest_route=\/wp\/v2\/posts\/3666\/revisions"}],"predecessor-version":[{"id":3668,"href":"http:\/\/www.brofive.net\/index.php?rest_route=\/wp\/v2\/posts\/3666\/revisions\/3668"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.brofive.net\/index.php?rest_route=\/wp\/v2\/media\/3664"}],"wp:attachment":[{"href":"http:\/\/www.brofive.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.brofive.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3666"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.brofive.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}