{"id":1196,"date":"2015-02-26T10:37:07","date_gmt":"2015-02-26T02:37:07","guid":{"rendered":"http:\/\/www.eumz.com\/?p=1196"},"modified":"2015-02-26T10:37:07","modified_gmt":"2015-02-26T02:37:07","slug":"%e4%bb%8e%e5%b9%b6%e8%a1%8cscsi%e5%88%b0%e4%b8%b2%e8%a1%8cscsi","status":"publish","type":"post","link":"https:\/\/www.wxcn.com\/?p=1196","title":{"rendered":"\u4ece\u5e76\u884cSCSI\u5230\u4e32\u884cSCSI"},"content":{"rendered":"<p>SCSI (Small Computer System Interface) \u5e38\u5e38\u79f0\u4e3a\u5e76\u884c SCSI\uff0c\u5b83\u7684\u5386\u53f2\u5dee\u4e0d\u591a\u6709 30 \u5e74\u4e86\uff0c\u5df2\u7ecf\u5f88\u96be\u6ee1\u8db3\u5f53\u4eca IT \u73af\u5883\u7684\u9700\u6c42\u3002\u56e0\u6b64\uff0c\u5f00\u53d1\u4e86\u4e32\u884c\u8fde\u63a5 SCSI (Serial Attached SCSI\uff0cSAS) \u6765\u514b\u670d SCSI \u56fa\u6709\u7684\u5c40\u9650\u6027\u3002\u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\u8fd9\u4e24\u79cd\u63a5\u53e3\u4e4b\u95f4\u7684\u5dee\u5f02\uff0c\u8bf4\u660e SAS \u7684\u4f18\u70b9\u3002<\/p>\n<h2 id=\"N10033\">\u7b80\u4ecb<\/h2>\n<p>SCSI (Small Computer System Interface) \u662f\u4e00\u7ec4\u7528\u4e8e\u5728\u8ba1\u7b97\u673a\u548c\u5916\u90e8\u8bbe\u5907\u4e4b\u95f4\u8fdb\u884c\u7269\u7406\u8fde\u63a5\u548c\u4f20\u8f93\u6570\u636e\u7684\u6807\u51c6\u3002\u8fd9\u4e9b\u6807\u51c6\u5b9a\u4e49\u547d\u4ee4\u3001\u534f\u8bae\u3001\u7535\u5b50\u63a5\u53e3\u548c\u5149\u5b66\u63a5\u53e3\u3002SCSI \u901a\u5e38\u7528\u5728\u786c\u76d8\u548c\u78c1\u5e26\u8bbe\u5907\u4e0a\uff0c\u4f46\u662f\u4e5f\u53ef\u4ee5\u7528\u4e8e\u8bb8\u591a\u5176\u4ed6\u8bbe\u5907\uff0c\u6bd4\u5982\u626b\u63cf\u4eea\u3001CD \u548c DVD \u9a71\u52a8\u5668\u3002<\/p>\n<p>SCSI\uff08\u5e38\u5e38\u79f0\u4e3a\u5e76\u884c SCSI\uff09\u57fa\u4e8e\u603b\u7ebf\u6280\u672f\u3002\u5b83\u7684\u5386\u53f2\u5dee\u4e0d\u591a\u6709 30 \u5e74\u4e86\uff0c\u5df2\u7ecf\u5f88\u96be\u6ee1\u8db3\u5f53\u4eca IT \u73af\u5883\u7684\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u5b83\u7684\u6700\u9ad8\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u53ea\u6709 320 MB\/sec (Ultra320 SCSI)\uff0c\u800c\u4e14\u5728\u5171\u4eab\u7684\u603b\u7ebf\u4e0a\u8fde\u63a5\u7684\u8bbe\u5907\u8d8a\u591a\uff0c\u6027\u80fd\u5c31\u8d8a\u5dee\u3002\u4f01\u4e1a IT \u9700\u6c42\u65e5\u76ca\u590d\u6742\uff0cSCSI \u8d8a\u6765\u8d8a\u4e0d\u80fd\u6ee1\u8db3\u9700\u8981\u4e86\u3002<\/p>\n<p>\u5f00\u53d1 Serial Attached SCSI (SAS) \u7684\u76ee\u7684\u662f\u6ee1\u8db3\u4f20\u7edf\u7684\u5e76\u884c SCSI \u65e0\u6cd5\u6ee1\u8db3\u7684 I\/O \u548c\u76f4\u63a5\u8fde\u63a5\u5b58\u50a8\u9700\u6c42\u3002\u5b83\u63d0\u4f9b\u4e0e SCSI \u7684\u903b\u8f91\u517c\u5bb9\u6027\uff0c\u540c\u65f6\u63d0\u4f9b\u4f18\u4e8e SCSI \u7684\u53ef\u9760\u6027\u3001\u6027\u80fd\u548c\u53ef\u7ba1\u7406\u6027\u3002\u4e0e\u5e76\u884c SCSI \u4e00\u6837\uff0cSAS \u662f\u4e00\u79cd\u7528\u4e8e\u5728\u786c\u76d8\u548c\u78c1\u5e26\u9a71\u52a8\u5668\u7b49\u8ba1\u7b97\u673a\u5b58\u50a8\u8bbe\u5907\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u7684\u6280\u672f\u3002\u4f46\u662f\uff0cSCSI \u662f\u591a\u652f\u8def\u7684\uff0c\u800c SAS \u662f\u70b9\u5bf9\u70b9\u534f\u8bae\uff0c\u652f\u6301\u6bd4\u5e76\u884c SCSI \u9ad8\u5f97\u591a\u7684\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u3002\u5b83\u4f7f\u7528\u6807\u51c6\u7684 SCSI \u547d\u4ee4\u96c6\u4e0e SAS \u7aef\u8bbe\u5907\u4ea4\u4e92\u3002<\/p>\n<p>SAS \u534f\u8bae\u7531 International Committee for Information Technology Standards (INCITS) \u7684 T10 \u6280\u672f\u59d4\u5458\u4f1a\u5f00\u53d1\u548c\u7ef4\u62a4\u3002<\/p>\n<h2 id=\"N1003F\">\u7ec4\u4ef6<\/h2>\n<p>\u5178\u578b\u7684 SAS \u7cfb\u7edf\u7531\u4ee5\u4e0b\u56db\u4e2a\u57fa\u672c\u7ec4\u4ef6\u7ec4\u6210\uff1a<\/p>\n<ul class=\"ibm-bullet-list\">\n<li>\u53d1\u8d77\u8005(Initiator)<\/li>\n<li>\u76ee\u6807 (Target)<\/li>\n<li>\u670d\u52a1\u4ea4\u4ed8\u5b50\u7cfb\u7edf (Service Delivery Subsystem)<\/li>\n<li>\u6269\u5c55\u5668 (Expander)<\/li>\n<\/ul>\n<p><strong>\u53d1\u8d77\u8005<\/strong>\u5411\u76ee\u6807\u8bbe\u5907\u53d1\u9001\u8bbe\u5907\u670d\u52a1\u548c\u4efb\u52a1\u7ba1\u7406\u8bf7\u6c42\uff0c\u5e76\u4ece\u76ee\u6807\u8bbe\u5907\u63a5\u6536\u5bf9\u8bf7\u6c42\u7684\u54cd\u5e94\u3002\u53d1\u8d77\u8005\u53ef\u4ee5\u662f\u4e3b\u677f\u4e0a\u7684\u7ec4\u4ef6\u6216\u9644\u52a0\u7684\u4e3b\u673a\u603b\u7ebf\u9002\u914d\u5668\u3002<\/p>\n<p><strong>\u76ee\u6807<\/strong>\u5305\u542b\u903b\u8f91\u5355\u5143\u548c\u76ee\u6807\u7aef\u53e3\u3002\u5b83\u63a5\u6536\u5e76\u5904\u7406\u8bbe\u5907\u670d\u52a1\u548c\u4efb\u52a1\u7ba1\u7406\u8bf7\u6c42\uff0c\u7136\u540e\u5411\u53d1\u9001\u8fd9\u4e9b\u8bf7\u6c42\u7684\u53d1\u8d77\u8005\u8fd4\u56de\u54cd\u5e94\u3002\u76ee\u6807\u8bbe\u5907\u53ef\u4ee5\u662f\u786c\u76d8\u6216\u78c1\u76d8\u9635\u5217\u7cfb\u7edf\u3002<\/p>\n<p><strong>\u670d\u52a1\u4ea4\u4ed8\u7cfb\u7edf<\/strong> (SDS) \u662f I\/O \u7cfb\u7edf\u7684\u4e00\u90e8\u5206\u3002\u5b83\u5728\u53d1\u8d77\u8005\u548c\u76ee\u6807\u4e4b\u95f4\u6765\u56de\u4f20\u8f93\u4fe1\u606f\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0cSDS \u7531\u8fde\u63a5\u53d1\u8d77\u8005\u548c\u76ee\u6807\u7684\u7ebf\u7f06\u7ec4\u6210\uff0c\u53ef\u80fd\u5305\u542b\u6269\u5c55\u5668\u3002<\/p>\n<p><strong>\u6269\u5c55\u5668<\/strong>\u662f SDS \u7684\u7ec4\u6210\u90e8\u5206\u3002\u5b83\u4eec\u534f\u52a9 SAS \u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\u5b83\u4eec\u8fd8\u5e2e\u52a9\u628a\u591a\u4e2a SAS \u8bbe\u5907\u8fde\u63a5\u5230\u5355\u4e00\u53d1\u8d77\u8005\u7aef\u53e3\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"N1005E\">\u5e76\u884c SCSI \u4e0e SAS<\/h2>\n<p>\u4e0b\u8868\u8bf4\u660e SAS \u548c SCSI \u63a5\u53e3\u4e4b\u95f4\u7684\u4e3b\u8981\u5dee\u5f02\uff1a<\/p>\n<p>\u5e76\u884c SCSI \u4e0e SAS<\/p>\n<table class=\"ibm-data-table\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr>\n<th><\/th>\n<th>\u5e76\u884c SCSI<\/th>\n<th>SAS<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u4f53\u7cfb\u7ed3\u6784<\/td>\n<td>\u5e76\u884c\uff0c\u6240\u6709\u8bbe\u5907\u90fd\u8fde\u63a5\u5230\u5171\u4eab\u7684\u603b\u7ebf\u3002<\/td>\n<td>\u4e32\u884c\uff0c\u70b9\u5bf9\u70b9\uff0c\u5355\u72ec\u7684\u4fe1\u53f7\u8def\u5f84\u3002\u4f7f\u7528\u7aef\u53e3\u6269\u5c55\u5668<sup>1<\/sup>\u6267\u884c\u6563\u5e03\uff08fan-out\uff09\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u6027\u80fd<\/td>\n<td>\u6700\u5927\u901f\u5ea6 320 MB\/sec (Ultra320 SCSI)\u3002\u6027\u80fd\u968f\u7740\u8fde\u63a5\u5171\u4eab\u603b\u7ebf\u7684\u8bbe\u5907\u589e\u52a0\u800c\u8870\u9000\u3002\u8de8\u6574\u4e2a\u591a\u652f\u8def\u603b\u7ebf\u5206\u4eab\u901f\u5ea6\u3002<\/td>\n<td>3.0 GB\/sec\uff0c\u8ba1\u5212\u589e\u52a0\u5230 12.0 GB\/sec\u3002\u5373\u4f7f\u589e\u52a0\u66f4\u591a\u8bbe\u5907\uff0c\u6027\u80fd\u4e5f\u7ef4\u6301\u4e0d\u53d8\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u53ef\u4f38\u7f29\u6027<\/td>\n<td>\u6bcf\u6761\u7ebf\u7f06\u4e0a\u7684\u8bbe\u5907\u6570\u53d7\u5230\u6bcf\u6761\u901a\u9053\u4e0a SCSI ID \u6570\uff088\u300116 \u6216 32\uff09\u7684\u9650\u5236\u3002<\/td>\n<td>\u6700\u591a 128 \u4e2a\u8bbe\u5907\u3002\u901a\u8fc7\u4f7f\u7528\u6563\u5e03\u6269\u5c55\u5668\uff0c\u53ef\u652f\u6301 16,384 \u4e2a\u8bbe\u5907\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u517c\u5bb9\u6027<\/td>\n<td>\u4e0e\u5176\u4ed6\u6240\u6709\u9a71\u52a8\u5668\u63a5\u53e3\u90fd\u4e0d\u517c\u5bb9\u3002<\/td>\n<td>\u4e0e\u4e32\u884c ATA (SATA) \u517c\u5bb9\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u6700\u5927\u7ebf\u7f06\u957f\u5ea6<\/td>\n<td>\u603b\u957f\u5ea6 12 \u7c73\u3002\u53ef\u4ee5\u4f7f\u7528 SCSI \u4e2d\u7ee7\u5668\u7a81\u7834\u6b64\u9650\u5236\uff0c\u4f46\u662f\u4e2d\u7ee7\u5668\u6bd4\u8f83\u8d35\u3002<\/td>\n<td>\u6bcf\u4e2a\u5355\u72ec\u7684\u8fde\u63a5 8 \u7c73\uff1b\u6574\u4e2a\u57df\u53ef\u4ee5\u5e03\u7f6e\u6570\u5343\u82f1\u5c3a\u7684\u7ebf\u7f06\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u7ebf\u7f06\u5f62\u5f0f\u56e0\u7d20<\/td>\n<td>\u8fc7\u591a\u7684\u7ebf\u7f06\u4f1a\u589e\u52a0\u6210\u672c\u3002<\/td>\n<td>\u7d27\u51d1\u7684\u8fde\u63a5\u5668\u548c\u7ebf\u7f06\u53ef\u4ee5\u8282\u7701\u7a7a\u95f4\u548c\u6210\u672c\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u70ed\u63d2\u62d4\u529f\u80fd<\/td>\n<td>\u672a\u4f18\u5316\u3002\u5e94\u8be5\u8c28\u614e\u3002<\/td>\n<td>\u652f\u6301\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u8bbe\u5907\u6807\u8bc6<\/td>\n<td>\u624b\u5de5\u8bbe\u7f6e\uff1b\u7528\u6237\u5fc5\u987b\u786e\u4fdd\u603b\u7ebf\u4e0a\u6ca1\u6709 ID \u53f7\u51b2\u7a81\u3002<\/td>\n<td>\u5728\u751f\u4ea7\u8bbe\u5907\u65f6\u8bbe\u7f6e\u5168\u4e16\u754c\u8303\u56f4\u5185\u60df\u4e00\u7684 ID\uff0c\u53ef\u4ee5\u60df\u4e00\u5730\u6807\u8bc6\u8bbe\u5907\uff1b\u4e0d\u9700\u8981\u7528\u6237\u64cd\u4f5c\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u7ec8\u7ed3<\/td>\n<td>\u624b\u5de5\u8bbe\u7f6e\uff1b\u7528\u6237\u5fc5\u987b\u786e\u4fdd\u6b63\u786e\u5730\u5b89\u88c5\u7ec8\u7ed3\u5668\u3002<\/td>\n<td>\u5355\u72ec\u7684\u4fe1\u53f7\u8def\u5f84\u4f7f\u8bbe\u5907\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u5305\u542b\u7ec8\u7ed3\uff1b\u4e0d\u9700\u8981\u7528\u6237\u64cd\u4f5c\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><sup>1<\/sup>\u7aef\u53e3\u6269\u5c55\u5668\u672c\u8d28\u4e0a\u662f\u5177\u6709\u5f3a\u5927\u7684\u5904\u7406\u5668\u7684\u4ea4\u6362\u673a\u3002<\/p>\n<h2 id=\"N100DC\">\u7ed3\u675f\u8bed<\/h2>\n<p>\u4ece\u6700\u7ec8\u7528\u6237\u7684\u89d2\u5ea6\u6765\u770b\uff0cSAS \u63d0\u4f9b\u4f01\u4e1a\u7ea7\u7684\u5065\u58ee\u6027\uff0c\u80fd\u591f\u4fdd\u62a4\u5bf9\u517c\u5bb9\u7684 SCSI \u8f6f\u4ef6\u548c\u5e94\u7528\u7a0b\u5e8f\u7684\u6295\u8d44\u3002\u53e6\u5916\uff0c\u56e0\u4e3a\u5b83\u4e0e SATA (Serial Advanced Technology Attachment) \u517c\u5bb9\uff0cSAS \u5141\u8bb8\u5728 SAS \u7cfb\u7edf\u4e2d\u4f7f\u7528\u76f4\u63a5\u8fde\u63a5\u5b58\u50a8\u8bbe\u5907\u3002\u56e0\u4e3a\u5b83\u57fa\u4e8e\u4e32\u884c\u63a5\u53e3\uff0c\u6240\u4ee5 SAS \u5141\u8bb8\u589e\u52a0\u8bbe\u5907\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SCSI (Small Computer System Interface) \u5e38\u5e38\u79f0\u4e3a\u5e76\u884c SCSI\uff0c\u5b83\u7684\u5386\u53f2 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[250,254,345,437],"class_list":["post-1196","post","type-post","status-publish","format-standard","hentry","category-pcserver","tag-sas","tag-scsi","tag-345","tag-437"],"_links":{"self":[{"href":"https:\/\/www.wxcn.com\/index.php?rest_route=\/wp\/v2\/posts\/1196","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wxcn.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wxcn.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wxcn.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wxcn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1196"}],"version-history":[{"count":0,"href":"https:\/\/www.wxcn.com\/index.php?rest_route=\/wp\/v2\/posts\/1196\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wxcn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1196"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wxcn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1196"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wxcn.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}