{"id":12,"date":"2005-04-08T17:24:00","date_gmt":"2005-04-08T09:24:00","guid":{"rendered":"http:\/\/www\/zhouhonghe.com\/wordpress\/?p=12"},"modified":"2007-01-29T21:37:26","modified_gmt":"2007-01-29T13:37:26","slug":"%e7%a3%81%e7%9b%98%e9%98%b5%e5%88%97%e7%9f%a5%e8%af%86%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/blog.zhouhonghe.com\/?p=12","title":{"rendered":"\u78c1\u76d8\u9635\u5217\u77e5\u8bc6\u4ecb\u7ecd"},"content":{"rendered":"<p><strong>1. \u4ec0\u4e48\u662f\u78c1\u76d8\u9635\u5217(Disk Array)<\/strong><\/p>\n<p>\u78c1\u76d8\u9635\u5217(Disk Array)\u662f\u7531\u4e00\u4e2a\u786c\u76d8\u63a7\u5236\u5668\u6765\u63a7\u5236\u591a\u4e2a\u786c\u76d8\u7684\u76f8\u4e92\u8fde\u63a5,\u4f7f\u591a\u4e2a\u786c\u76d8\u7684\u8bfb\u5199\u540c\u6b65,\u51cf\u5c11\u9519\u8bef,\u589e\u52a0\u6548\u7387\u548c\u53ef\u9760\u5ea6\u7684\u6280\u672f.<\/p>\n<p><strong>2.\u4e3a\u4ec0\u4e48\u9700\u8981\u78c1\u76d8\u9635\u5217<\/strong><\/p>\n<p>\u5982\u4f55\u589e\u52a0\u78c1\u76d8\u7684\u5b58\u53d6(access)\u901f\u5ea6,\u5982\u4f55\u9632\u6b62\u6570\u636e\u56e0\u78c1\u76d8\u7684\u6545\u969c\u800c\u5931\u843d\u53ca\u5982\u4f55\u6709\u6548\u7684\u5229\u7528\u78c1\u76d8\u7a7a\u95f4,\u4e00\u76f4\u662f\u7535\u8111\u4e13\u4e1a\u4eba\u5458\u548c\u7528\u6237\u7684\u56f0\u6270;\u800c\u5927\u5bb9\u91cf\u78c1\u76d8\u7684\u4ef7\u683c\u975e\u5e38\u6602\u8d35,\u5bf9\u7528\u6237\u5f62\u6210\u5f88\u5927\u7684\u8d1f\u62c5.\u78c1\u76d8\u9635\u5217\u6280\u672f\u7684\u4ea7\u751f\u4e00\u4e3e\u89e3\u51b3\u4e86\u8fd9\u4e9b\u95ee\u9898.<\/p>\n<p><strong>3.\u78c1\u76d8\u9635\u5217\u539f\u7406<\/strong><\/p>\n<p>\u78c1\u76d8\u9635\u5217\u4e2d\u9488\u5bf9\u4e0d\u540c\u7684\u5e94\u7528\u4f7f\u7528\u7684\u4e0d\u540c\u6280\u672f,\u79f0\u4e3aRAID level, RAID\u662fRedundant Array of Inexpensive Disks\u7684\u7f29\u5199,\u800c\u6bcf\u4e00level\u4ee3\u8868\u4e00\u79cd\u6280\u672f,\u76ee\u524d\u4e1a\u754c\u516c\u8ba4\u7684\u6807\u51c6\u662fRAID 0~RAID 5.\u8fd9\u4e2alevel\u5e76\u4e0d\u4ee3\u8868\u6280\u672f\u7684\u9ad8\u4f4e,level 5\u5e76\u4e0d\u9ad8\u4e8elevel 3,level 1\u4e5f\u4e0d\u4f4e\u8fc7level 4,\u81f3\u4e8e\u8981\u9009\u62e9\u90a3\u4e00\u79cdRAID level\u7684\u4ea7\u54c1,\u7eaf\u89c6\u7528\u6237\u7684\u64cd\u4f5c\u73af\u5883(operating environment)\u53ca\u5e94\u7528(application)\u800c\u5b9a,\u4e0elevel\u7684\u9ad8\u4f4e\u6ca1\u6709\u5fc5\u7136\u7684\u5173\u7cfb.<\/p>\n<p>RAID 0\u53caRAID 1\u9002\u7528\u4e8ePC\u53caPC\u76f8\u5173\u7684\u7cfb\u7edf\u5982\u5c0f\u578b\u7684\u7f51\u7edc\u670d\u52a1\u5668(network server)\u53ca\u9700\u8981\u9ad8\u78c1\u76d8\u5bb9\u91cf\u4e0e\u5feb\u901f\u78c1\u76d8\u5b58\u53d6\u7684\u5de5\u4f5c\u7ad9\u7b49,\u56e0\u4e3a\u6bd4\u8f83\u4fbf\u5b9c, RAID 2\u53caRAID 3\u9002\u7528\u4e8e\u5927\u578b\u7535\u8111\u53ca\u5f71\u50cf,AD\/CAM\u7b49\u5904\u7406;RAID 5\u591a\u7528\u4e8eOLTP,\u56e0\u6709\u91d1\u878d\u673a\u6784\u53ca\u5927\u578b\u6570\u636e\u5904\u7406\u4e2d\u5fc3\u7684\u8feb\u5207\u9700\u8981,\u6545\u4f7f\u7528\u8f83\u591a\u800c\u8f83\u6709\u540d\u6c14.<\/p>\n<p><strong>4.\u4ec0\u4e48\u662fRAID\u53caRAID Level<\/strong><\/p>\n<p>A,\u4ec0\u4e48\u662fRAID<br \/>\nRAID\u662fRedundant Array of Inexpensive Disk\u7684\u7f29\u5199,\u610f\u4e3a\u5ec9\u4ef7\u5197\u4f59\u78c1\u76d8\u9635\u5217,\u662f\u78c1\u76d8\u9635\u5217\u5728\u6280\u672f\u4e0a\u5b9e\u73b0\u7684\u7406\u8bba\u6807\u51c6,\u5176\u76ee\u7684\u5728\u4e8e\u51cf\u5c11\u9519\u8bef,\u63d0\u9ad8\u5b58\u50a8\u7cfb\u7edf\u7684\u6027\u80fd\u4e0e\u53ef\u9760\u5ea6.\u5e38\u7528\u7684\u7b49\u7ea7\u67091,3,5\u7ea7\u7b49.<\/p>\n<p>B.\u4ec0\u4e48\u662fRAID Level 0<br \/>\nRAID Level 0\u662fData Striping(\u6570\u636e\u5206\u5272)\u6280\u672f\u7684\u5b9e\u73b0,\u5b83\u5c06\u6240\u6709\u786c\u76d8\u6784\u6210\u4e00\u4e2a\u78c1\u76d8\u9635\u5217,\u53ef\u4ee5\u540c\u65f6\u5bf9\u591a\u4e2a\u786c\u76d8\u505a\u8bfb\u5199\u52a8\u4f5c,\u4f46\u662f\u4e0d\u5177\u5907\u5907\u4efd\u53ca\u5bb9\u9519\u80fd\u529b,\u5b83\u4ef7\u683c\u4fbf\u5b9c,\u786c\u76d8\u4f7f\u7528\u6548\u7387\u6700\u4f73,\u4f46\u662f\u53ef\u9760\u5ea6\u662f\u6700\u5dee\u7684.<br \/>\n\u4ee5\u4e00\u4e2a\u7531\u4e24\u4e2a\u786c\u76d8\u7ec4\u6210\u7684RAID Level 0\u78c1\u76d8\u9635\u5217\u4e3a\u4f8b,\u5b83\u628a\u6570\u636e\u7684\u7b2c1\u548c2\u4f4d\u5199\u5165\u7b2c\u4e00\u4e2a\u786c\u76d8,\u7b2c\u4e09\u548c\u7b2c\u56db\u4f4d\u5199\u5165\u7b2c\u4e8c\u4e2a\u786c\u76d8\u2026\u2026\u4ee5\u6b64\u7c7b\u63a8,\u6240\u4ee5\u53eb\"\u6570\u636e\u5206\u5272\",\u56e0\u4e3a\u5404\u76d8\u6570\u636e\u7684\u5199\u5165\u52a8\u4f5c\u662f\u540c\u65f6\u505a\u7684,\u6240\u4ee5\u5b83\u7684\u5b58\u50a8\u901f\u5ea6\u53ef\u4ee5\u6bd4\u5355\u4e2a\u786c\u76d8\u5feb\u51e0\u500d.<\/p>\n<p>C.\u4ec0\u4e48\u662fRAID Level 1<br \/>\nRAID Level 1\u4f7f\u7528\u7684\u662fDisk Mirror(\u78c1\u76d8\u6620\u5c04)\u6280\u672f,\u5c31\u662f\u628a\u4e00\u4e2a\u786c\u76d8\u7684\u5185\u5bb9\u540c\u6b65\u5907\u4efd\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u786c\u76d8\u91cc,\u6240\u4ee5\u5177\u5907\u4e86\u5907\u4efd\u548c\u5bb9\u9519\u80fd\u529b,\u8fd9\u6837\u505a\u7684\u4f7f\u7528\u6548\u7387\u4e0d\u9ad8,\u4f46\u662f\u53ef\u9760\u6027\u9ad8.<\/p>\n<p>D.\u4ec0\u4e48\u662fRAID Level 3<br \/>\nRAID Level 3\u91c7\u7528Byte-interleaving(\u6570\u636e\u4ea4\u9519\u5b58\u50a8)\u6280\u672f,\u786c\u76d8\u5728SCSI\u63a7\u5236\u5361\u4e0b\u540c\u65f6\u52a8\u4f5c,\u5e76\u5c06\u7528\u4e8e\u5947\u5076\u6821\u9a8c\u7684\u6570\u636e\u50a8\u5b58\u5230\u7279\u5b9a\u786c\u76d8\u673a\u4e2d,\u5b83\u5177\u5907\u4e86\u5bb9\u9519\u80fd\u529b,\u786c\u76d8\u7684\u4f7f\u7528\u6548\u7387\u662f\u5b89\u88c5\u51e0\u4e2a\u5c31\u51cf\u6389\u4e00\u4e2a,\u5b83\u7684\u53ef\u9760\u5ea6\u8f83\u4f73.<\/p>\n<p>E.\u4ec0\u4e48\u662fRAID Level 5<br \/>\nRAID Level 5\u4f7f\u7528\u7684\u662fDisk Striping(\u786c\u76d8\u5206\u5272)\u6280\u672f,\u4e0eLevel 3\u7684\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u5b83\u628a\u5947\u5076\u6821\u9a8c\u6570\u636e\u5b58\u653e\u5230\u5404\u4e2a\u786c\u76d8\u91cc,\u5404\u4e2a\u786c\u76d8\u5728SCSI\u63a7\u5236\u5361\u7684\u63a7\u5236\u4e0b\u5e73\u884c\u52a8\u4f5c,\u6709\u5bb9\u9519\u80fd\u529b,\u8ddfLevel 3\u4e00\u6837,\u5b83\u7684\u4f7f\u7528\u6548\u7387\u4e5f\u662f\u5b89\u88c5\u51e0\u4e2a\u518d\u51cf\u6389\u4e00\u4e2a.<\/p>\n<p><strong>5.\u4ec0\u4e48\u662f\u70ed\u63d2\u62d4\u786c\u76d8?<\/strong><\/p>\n<p>\u70ed\u63d2\u62d4\u786c\u76d8\u82f1\u6587\u540d\u4e3aHot-Swappable Disk,\u5728\u78c1\u76d8\u9635\u5217\u4e2d,\u5982\u679c\u4f7f\u7528\u652f\u6301\u70ed\u63d2\u62d4\u6280\u672f\u7684\u786c\u76d8,\u5728\u6709\u4e00\u4e2a\u786c\u76d8\u574f\u6389\u7684\u60c5\u51b5\u4e0b,\u670d\u52a1\u5668\u53ef\u4ee5\u4e0d\u7528\u5173\u673a,\u76f4\u63a5\u62bd\u51fa\u574f\u6389\u7684\u786c\u76d8,\u6362\u4e0a\u65b0\u7684\u786c\u76d8.\u4e00\u822c\u7684\u5546\u7528\u78c1\u76d8\u9635\u5217\u5728\u786c\u76d8\u574f\u6389\u7684\u65f6\u5019,\u4f1a\u81ea\u52a8\u9e23\u53eb\u63d0\u793a\u7ba1\u7406\u5458\u66f4\u6362\u786c\u76d8.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. \u4ec0\u4e48\u662f\u78c1\u76d8\u9635\u5217(Disk Array) \u78c1\u76d8\u9635\u5217(Disk Array)\u662f\u7531\u4e00\u4e2a\u786c\u76d8\u63a7\u5236\u5668\u6765\u63a7\u5236\u591a\u4e2a\u786c\u76d8 [&hellip;]<\/p>... ","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-12","post","type-post","status-publish","format-standard","hentry","category-5"],"_links":{"self":[{"href":"https:\/\/blog.zhouhonghe.com\/index.php?rest_route=\/wp\/v2\/posts\/12","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.zhouhonghe.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.zhouhonghe.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.zhouhonghe.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.zhouhonghe.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12"}],"version-history":[{"count":0,"href":"https:\/\/blog.zhouhonghe.com\/index.php?rest_route=\/wp\/v2\/posts\/12\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.zhouhonghe.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.zhouhonghe.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.zhouhonghe.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}