{"id":110,"date":"2007-02-25T21:45:43","date_gmt":"2007-02-25T13:45:43","guid":{"rendered":"http:\/\/www.liangliang.org.cn\/blog\/?p=110"},"modified":"2007-02-25T21:45:43","modified_gmt":"2007-02-25T13:45:43","slug":"san%e5%92%8cnas","status":"publish","type":"post","link":"https:\/\/www.liangliang.org.cn\/?p=110","title":{"rendered":"SAN\u548cNAS"},"content":{"rendered":"<p>\u9996\u5148\u6211\u6765\u8bf4\u4e00\u4e0b SAN<\/p>\n<p>SAN (Storage Area Network) \u662f\u533a\u57df\u5b58\u50a8\u7f51\uff0c\u5927\u5bb6\u6700\u5bb9\u6613\u6df7\u6dc6\u7684\u4e0d\u662fS\uff0c\u4e5f\u4e0d\u662fA,\u800c\u662fNetWork !<\/p>\n<p>\u4e00\u4e2a\u5c40\u57df\u7f51\u53eb\u4f5cLAN(Local Area Network ) \uff0c\u8fd9\u4e2aLAN\u4e2d\u7684N\u548cSAN\u4e2d\u7684N\u5728\u5b9e\u73b0\u4e0a\u6709\u5b8c\u5168\u4e0d\u4e00\u6837\u7684\u505a\u6cd5\uff0c\u4e8b\u5b9e\u4e0a\uff0c\u5f88\u591a\u670b\u53cb\u641e\u4e0d\u6e05\u695aSAN &amp; NAS\uff0c\u5c31\u662f\u4e0d\u660e\u767d\u8fd9\u4e2a\u6700\u5927\u7684\u533a\u522b\u3002<\/p>\n<p>SAN\u662f\u6307\u901a\u8fc7\u652f\u6301SAN\u534f\u8bae\u7684\u5149\u7ea4\u901a\u9053\u4ea4\u6362\u673a\uff0c\u5c06\u4e3b\u673a\u548c\u5b58\u50a8\u7cfb\u7edf\u8054\u7cfb\u8d77\u6765\uff0c\u7ec4\u6210\u4e00\u4e2aLUN Based\u7684 \"\u7f51\u7edc\" ,\u8fd9\u4e2a\u7f51\u7edc\u548c \"LAN\"\u4e2d\u6240\u6307\u7684\u7f51\u7edc\u5b8c\u5168\u662f\u4e24\u4e2a\u610f\u601d.<\/p>\n<p>\u6240\u4ee5\u5982\u679c\u54ea\u4e2a\u4f01\u4e1a\u5b9e\u65bd\u4e86SAN,\u5462\u4e48\u5728\u5728\u4ed6\u7684\u4f01\u4e1a\u4e2d\uff0c\u5e94\u8be5\u5b58\u5728\u4e24\u4e2a\u7f51\uff0c\u4e00\u4e2a\u662f\u7531\u57fa\u4e8eTCP\/IP\u7684\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\uff0c\u8def\u7531\u5668\uff0c5\u7c7b\u7f51\u7ebf\uff0c\u4ee5\u592a\u7f51\u5361\uff0c\u670d\u52a1\u5668\uff0cPC\u673a\u7ec4\u6210\u7684\u5c40\u57df\u7f51LAN.<\/p>\n<p>\u53e6\u5916\u4e00\u4e2a\u662f\u6709\u670d\u52a1\u5668\uff0c\u5b58\u50a8\u7cfb\u7edf\uff0cSAN\u4ea4\u6362\u673a\uff0c\u5149\u7ea4\u901a\u9053\u7ec4\u6210\u7684SAN.<\/p>\n<p>NAS Server<br \/>\n||<br \/>\npc-------------------pc------------------------pc<br \/>\n||' '<br \/>\n--------------------LAN---------------------------<br \/>\n||' '<br \/>\nServer-----------Server-------------------Server<br \/>\n||' '<br \/>\n--------------------SAN-------------------------<br \/>\n||' '<br \/>\nTAPE Lib------Disk Array---------------High-End storage<\/p>\n<p>LAN\u4e2d\uff0c PC\u673a\u53ef\u4ee5\u901a\u8fc7\u4ee5\u592a\u7f51(LAN) \u4ee5 TCP\/IP\u8bbf\u95eeNAS\u670d\u52a1\u5668\uff0c\u56e0\u4e3aNAS\u662f\u901a\u8fc7\u7f51\u7ebf\u8fde\u63a5\u5230LAN\u4e0a\u7684\uff0c\u4ed6\u662f\u57fa\u4e8eFile System Based\u7684\u8bbf\u95ee\u65b9\u5f0f\uff0c\u6bd4\u5982\u6211\u4eec\u7528SAMBA\u548cPHP ,HTML\u5c31\u53ef\u4ee5\u6784\u9020\u51fa\u4e00\u4e2a\u7b80\u5355\u7684NAS Server.<\/p>\n<p>SAN\u4e2d\uff0cpc\u673a\u548c\u670d\u52a1\u5668\u4ea4\u4e92\u5e94\u7528\uff0c\u670d\u52a1\u5668\u5728\u8bbf\u95ee\u4ed6\u7684\u5b58\u50a8\u7cfb\u7edf\u7684\u65f6\u5019\uff0c\u4e0d\u518d\u50cf\u4ee5\u524d\u90a3\u6837\u901a\u8fc7\u4ee5\u592a\u7f51(LAN)\u53bb\u8bbf\u95ee\u5b58\u50a8\u8bbe\u5907\uff0c\u4e5f\u4e0d\u662f\u901a\u8fc7\u76f4\u63a5\u8fde\u63a5\u5728\u670d\u52a1\u5668\u4e0a\u7684\u5916\u7f6e\u5b58\u50a8\u7cfb\u7edf\u6765\u8bbf\u95ee\u5b58\u50a8\u8bbe\u5907\uff0c\u800c\u662f\u597d\u50cfLAN\u91cc\u4e70\u55ef\u4e00\u6837\uff0c\u901a\u8fc7\u4e00\u4e2a\u4ea4\u6362\u673a(\u5149\u7ea4\u901a\u9053\u4ea4\u6362\u673a)\u6765\u8bbf\u95eeon-line storage,\u6216\u8005offline-storage\uff0c\u800c\u4e14\u8bbf\u95ee\u8fd9\u4e9b\u5b58\u50a8\u8bbe\u5907\u90fd\u662f\u57fa\u4e8eLUN\u7684\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u90fd\u662f\u900f\u8fc7File System\uff0c\u76f4\u63a5\u5bf9\u5377\u96c6\u8fdb\u884c\u64cd\u4f5c\u7684\uff0c\u6bd4\u5982\u76f4\u63a5\u8bbf\u95eeRAID\u5377\u96c6.<\/p>\n<p>\u6240\u4ee5\u4ece\u6211\u4e0a\u9762\u53ef\u4ee5\u770b\u51fa\uff0c\u65e0\u8bba\u662f\u5728\u7f51\u7edc\u6784\u6210\u4e0a\uff0c\u8fd8\u662f\u8bbf\u95ee\u673a\u5236\u4e0a\uff0cLAN &amp; SAN\u662f\u5b8c\u5168\u4e0d\u4e00\u6837\u7684\u3002<\/p>\n<p>\u540c\u6837\uff0c\u5bf9\u4e8e\u4f01\u4e1a\u6765\u8bf4\uff0c\u6295\u8d44\u548c\u56de\u62a5\u4e5f\u662f\u4e0d\u4e00\u6837\u7684\u3002<br \/>\n\u4f46\u662f\u7edd\u5927\u591a\u6570\u4f01\u4e1a\u53ea\u9700\u8981NAS\u7cfb\u7edf\u5c31\u53ef\u4ee5\u4e86\uff0c\u56e0\u4e3a\u6784\u5efaSAN\u7cfb\u7edf\u9700\u8981\u989d\u5916\u7684\u91cd\u65b0\u6784\u5efa\u4f01\u4e1a\u5185\u90e8\u7684\u5149\u7ea4\u901a\u9053\u7f51\u7edc\uff0c\u9700\u8981\u8d2d\u4e70\u6602\u8d35\u7684SAN\u4ea4\u6362\u673a\uff0c\u9700\u8981\u5c06\u539f\u6765\u7684\u5b58\u50a8\u4ea7\u54c1\u5347\u7ea7\u5230\u6602\u8d35\u7684\u652f\u6301SAN\u548cFC\u89c4\u5219\u7684\u5b58\u50a8\u4ea7\u54c1\uff0c\u4e00\u4e9b\u78c1\u5e26\u673a\uff0c\u4f4e\u7aef\u7684\u78c1\u5e26\u5e93\uff0c\u78c1\u76d8\u9635\u5217\u67dc\u5c06\u65e0\u6cd5\u5347\u7ea7\u5230SAN\u800c\u5bfc\u81f4\u6295\u8d44\u6d6a\u8d39\u3002<\/p>\n<p>SAN\u4e0d\u53ea\u662f\u9762\u5bf9\u78c1\u76d8\u4ecb\u8d28\uff0c\u4ed6\u9762\u5bf9\u7684\u662f\u5305\u542b\u78c1\u76d8\u4ecb\u8d28\uff0c\u901a\u9053\uff0c\u4ea4\u6362\u7b49\u6982\u5ff5\uff0c<\/p>\n<p>SAN\u7684\u6982\u5ff5\u5f88\u5bb9\u6613\u7406\u89e3\uff0c\u5c31\u662f\u5728\u4f20\u7edf\u7684\u5b58\u50a8\u7cfb\u7edf\u4e2d\uff0c\u5b58\u50a8\u7cfb\u7edf\u4e0d\u662f\u901a\u8fc7SCSI\u901a\u9053\u5c31\u662f\u901a\u8fc7FC\u76f4\u63a5\u8fde\u63a5\u670d\u52a1\u5668\uff0c\u5728SAN\u91cc\u9762\u5c06\u8fd9\u79cdChannel\u7684\u6280\u672f\u770b\u4f5c\u4e86\u7c7b\u4f3cLAN\u4e2d\u7684Network\u7684\u6982\u5ff5\uff0c\u5c06\u6bcf\u4e2a\u5b58\u50a8\u8bbe\u5907\u548c\u670d\u52a1\u5668\u90fd\u770b\u4f5c\u4e00\u4e2a\u7279\u5730\u6784\u9020\u7684\"\u7f51\u7edc\"\u4e2d\u7684\u8282\u70b9\uff0c\u4f46\u662f\u5f88\u663e\u7136\u8fd9\u4e2a\u7f51\u662f\u6709\u522b\u4e8e\u5c40\u57df\u7f51\u7684\uff0c\u56e0\u4e3a\u5b83\u662f\u57fa\u4e8eLogical Unit\u5e76\u4e14\u4e0d\u8dd1TCP\/IP\u3002<\/p>\n<p>SAN\u5c31\u662f\u6211\u4eec\u4e3a\u4e86\u6269\u5c55\u4ee5\u5f80\u7684\u5b58\u50a8\u6a21\u5f0f\uff0c\u6784\u9020\u51fa\u7684\u4e00\u4e2a\u4ee5FC\u4ea4\u6362\u673a\u4e3a\u9aa8\u5e72\u7684\u5b58\u50a8\u7f51\u7edc\u3002<\/p>\n<p>\u4e0d\u7ba1\u662f\u6d77\u91cf\u5b58\u50a8\u8fd8\u662fSAN,\u76ee\u524d\u90fd\u65e0\u6cd5\u7528Linux\u6765\u5b9e\u73b0\uff0c\u8fd9\u4e2a\u95ee\u9898\u6211\u5df2\u7ecf\u8003\u5bdf\u4e86\u5f88\u591a\u65f6\u95f4\uff0c\u4e3b\u8981\u539f\u56e0\u662fLinux\u76ee\u524d\u8fd8\u6ca1\u6709\u975e\u5e38\u7a33\u5b9a\u548c\u5f3a\u5927\u7684LVM\u548cLock Manager\u673a\u5236\uff0c\u8fd8\u6ca1\u6709\u88ab\u5e7f\u6cdb\u7684\u652f\u6301\u6d77\u91cf\u5b58\u50a8\u7684IT\u4f9b\u5e94\u5546\u652f\u6301\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4\u4e1a\u754c\u9876\u7ea7\u7684\u5b58\u50a8\u7cfb\u7edf HP XP512\u548cEMC\u5927\u67dc\u90fd\u8fd8\u6ca1\u6709\u5728Linux\u4e0a\u6d4b\u8bd5\u8fc7\uff0c\u4e0d\u8fc7\u6839\u636eEMC\u7f8e\u56fd\u65b9\u9762\u7684\u8bf4\u6cd5\uff0c\u4ed6\u4eec\u5c06\u4f1a\u5728\u4e0b\u4e00\u4e2a\u8d22\u5e74\uff0c\u5f00\u59cb\u542f\u52a8\u4ed6\u4eec\u7684Linux\u6218\u7565\u884c\u52a8\uff0c\u6240\u4ee5\u6d77\u91cf\u5b58\u50a8\u5728Linux\u6700\u8d77\u7801\u9700\u89812~3\u5e74\u7684\u6210\u957f\u671f\u3002<\/p>\n<p>\u76ee\u524d\u7528Linux\u4f5c\u57fa\u4e8eFILE SYSTEM\u7684NAS\u662f\u6700\u7406\u60f3\u4e0d\u8fc7\u4e86\u3002Maxtor\u548cCobalt\u5c31\u51fa\u4e86\u57fa\u4e8eLinux\u7684NAS\u7cfb\u7edf.<\/p>\n<p>\u5982\u679c\u4f60\u60f3\u5c06\u5f88\u591a\u7684\u670d\u52a1\u5668\u5b58\u50a8\u7a7a\u95f4\u7edf\u4e00\u8d77\u6765\uff0c\u5c31\u9700\u8981\u770b\u4f60\u662f\u51c6\u5907\u5728\u54ea\u4e2a\u5c42\u9762\u7edf\u4e00\uff0c\u5982\u679c\u662fLUN\uff0c\u5462\u4e48\u96be\u5ea6\u8f83\u5927\uff0c\u5982\u679c\u662fFilesystem,\u5462\u4e48\u5c31\u5f88\u7b80\u5355\u4e86\uff0c\u7528NFS\u5c31\u53ef\u4ee5\u4e86<\/p>\n<p>NAS &amp; SAN\u662f\u4e0d\u4e00\u6837\u7684<\/p>\n<p>NAS\u662f\u57fa\u4e8eFile system<br \/>\nSAN\u662f\u57fa\u4e8eLUN\u7684<\/p>\n<p>NAS\u662f\u8fde\u63a5\u5728LAN\u91cc\u9762\u7684\u5b58\u50a8\u670d\u52a1\u5668<br \/>\nSAN\u662f\u7531FC\u4ea4\u6362\u673a\u7ec4\u6210\u7684\u4e00\u4e2a\u5b58\u50a8\u7f51\u7edc<\/p>\n<p>NAS\u4e0a\u7684\u6570\u636e\u662f\u4e0d\u6392\u5916\u7684\uff0c\u540c\u4e00\u4e2a\u903b\u8f91\u533a\u57df\u53ef\u4ee5\u88ab\u591a\u4e2a\u670d\u52a1\u5668\u8bfb\u53d6\u548c\u4fee\u6539<br \/>\nSAN\u4e0a\u7684\u6570\u636e\u662f\u653e\u5728LUN\u4e0a\u7684\uff0c\u540c\u4e00\u4e2a\u533a\u57df\u9700\u8981Lock Manager\u6765\u63a7\u5236\uff0c\u4e0d\u5141\u8bb8\u540c\u65f6\u8bfb\u5199<\/p>\n<p>NAS\u662f\u548cCluster\u65e0\u5173\u7684\uff0cNAS\u8bbe\u5907\u6709\u81ea\u5df1\u7684OS<br \/>\nSAN\u662f\u548cCluster\u5bc6\u5207\u76f8\u5173\u7684\uff0cSAN\u4e2d\u7684\u5b58\u50a8\u8bbe\u5907\u6ca1\u6709OS<\/p>\n<p>NAS\u662f\u5ec9\u4ef7\u7684\uff0c\u8d70\u7684\u662fTCP\/IP<br \/>\nSAN\u662f\u6602\u8d35\u7684\uff0c\u8d70\u7684\u662fFC\u76f8\u5173\u534f\u8bae\u96c6<\/p>\n<p>NAS\u4e3b\u8981\u4f5c\u4e3a\u6563\u5e03\u5728LAN\u4e2d\u7684\u5404\u4e2a\u5206\u5f00\u7684\u5b58\u50a8\u7cfb\u7edf<br \/>\nSAN\u4e3b\u8981\u662f\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\u6982\u5ff5\u5b58\u5728\u5728\u4f01\u4e1a\u4e2d\uff0c\u53ef\u4ee5\u770b\u4f5c\u4e00\u4e2a\u5355\u72ec\u7684\u5b58\u50a8\u7cfb\u7edf<\/p>\n<p>NAS\u7684\u6027\u80fd\/\u4ef7\u683c\u6bd4\u8f83\u597d\uff0c\u9002\u5408\u4e2d\u5c0f\u4f01\u4e1a\u7684\u4e2d\u592e\u5b58\u50a8<br \/>\nSAN\u7684\u6027\u80fd\u4f18\u79c0\uff0c\u4f46\u662f\u4ef7\u683c\u6602\u8d35\uff0c\u9002\u5408\u5927\u578b\u4f01\u4e1a\u548c\u5173\u952e\u5e94\u7528\u7684\u6838\u5fc3\u5b58\u50a8\u7cfb\u7edf<br \/>\n*******************************************************************<\/p>\n<p>NAS\u548cSAN\u5b57\u9762\u4e0a\u76f8\u4f3c\uff0c\u5e76\u4e14\u90fd\u662f\u65b0\u578b\u6570\u636e\u5b58\u50a8\u6a21\u5f0f\uff0c\u4f46\u8fd9\u4e8c\u8005\u662f\u5b8c\u5168\u4e0d\u540c\u7684\uff0c\u9488\u5bf9\u4e0d\u540c\u65b9\u5411\u7684\u6280\u672f\u3002<br \/>\n\u4ec0\u4e48\u662fSAN\uff08Storage Area Storage\uff0c\u5b58\u50a8\u533a\u57df\u7f51\uff09<br \/>\nSAN\uff08Storage Area Storage\uff0c\u5b58\u50a8\u533a\u57df\u7f51\uff09\u662f\u4e00\u4e2a\u9ad8\u901f\u7684\u5b50\u7f51\uff0c\u8fd9\u4e2a\u5b50\u7f51\u4e2d\u7684\u8bbe\u5907\u53ef\u4ee5\u4ece\u4f60\u7684\u4e3b\u7f51\u5378\u8f7d\u6d41\u91cf\u3002\u901a\u5e38SAN\u7531RAID\u9635\u5217\u8fde\u63a5\u5149\u7ea4\u901a\u9053\uff08Fibre Channel\uff09\u7ec4\u6210\uff0cSAN\u548c\u670d\u52a1\u5668\u548c\u5ba2\u6237\u673a\u7684\u6570\u636e\u901a\u4fe1\u901a\u8fc7SCSI\u547d\u4ee4\u800c\u975eTCP\/IP\uff0c\u6570\u636e\u5904\u7406\u662f\u201c\u5757\u7ea7\u201d\uff08block level\uff09\u3002\u793a\u610f\u56fe\u5982\u4e0b\uff1a<\/p>\n<p>\u4ec0\u4e48\u662fNAS\uff08Network Attached Storage\uff0c\u7f51\u7edc\u9644\u52a0\u5b58\u50a8\uff09<br \/>\nNAS\uff08Network Attached Storage\uff0c\u7f51\u7edc\u9644\u52a0\u5b58\u50a8\uff09\u7684\u5178\u578b\u7ec4\u6210\u662f\u4f7f\u7528TCP\/IP\u534f\u8bae\u7684\u4ee5\u592a\u7f51\u6587\u4ef6\u670d\u52a1\u5668\uff0c\u6570\u636e\u5904\u7406\u662f\u201c\u6587\u4ef6\u7ea7\u201d\uff08file level\uff09\u3002\u4f60\u53ef\u4ee5\u628aNAS\u5b58\u50a8\u8bbe\u5907\u9644\u52a0\u5728\u5df2\u7ecf\u5b58\u5728\u7684\u592a\u7f51\u4e0a\u3002<\/p>\n<p>SAN\u4e0eNAS\u533a\u522b<br 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