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---++ <span style="color: sienna;">Storage Elements(SE)</span> <span style="color: sienna;"><span id="result_box">* Hardware</span></span> 2 facilities SE (dCache) _1st - Disk Only:_ <span id="result_box">3 disk servers</span>: 65906GB h/w RAID6 (24x3000GB SATAIII); 2x1GbE; 48GB RAM 5 <span id="result_box">disk servers</span>: 65906GB h/w RAID6 (24x3000GB SATAIII); 10GbE; 48GB RAM 3 control computes : 2xCPU (Xeon X5650 @ 2.67GHz; 48GB RAM; 500GB SATA-II; 2x1GbE. 8 <span id="result_box">computers support access protocols. All are on a virtual machine (KVM)</span> <br /> <em>2nd - support Mass Storage System:<br /> </em><br /> 2 <span id="result_box">disk servers</span>: 65906GB h/w RAID6 (24x3000GB SATAIII); 2x1GbE; 48GB RAM<br /> 1 tape robot: IBM TS3200, 24xLTO5; 4xUltrium5 FC8; 72TB.<br /> 3 control computers : 2xCPU (Xeon X5650 @ 2.67GHz; 48GB RAM; 500GB SATA-II; 2x1GbE.<br /> 6 <span id="result_box">computers support access protocols. All are on a virtual machine (KVM</span>) <span style="color: sienna;"><span id="result_box">* Software</span></span> dcache-2.6.31-1 (dcache.org) ÎÁ dcache disk only<br /> dcache-2.2.27 (dcache.org) ÎÁ dcache Ó MSS <span style="color: burlywood;"><span style="color: peru;">* Работа с файлами dCache</span></span> <!-- P { margin-bottom: 0.21cm; } --> <span style="font-family: Verdana,sans-serif;">Файл‹ в dCache пишутся один раз, читаются много раз. </span> <span style="font-family: Verdana,sans-serif;">Модификация не допускается. </span> <span style="font-family: Verdana,sans-serif;">Процесс изменения файла в‹глядит <span style="font-family: Verdana,sans-serif;">след<span style="font-family: Verdana,sans-serif;">ующим образом :</span></span><br /></span> <span style="font-family: Verdana,sans-serif;">А) файл из dCache <span style="font-family: Verdana,sans-serif;">копируется локально</span><br /></span> <span style="font-family: Verdana,sans-serif;">Б) файл редактируется<br /></span> <span style="font-family: Verdana,sans-serif;">В) файл из dCache стирается<br /></span> <span style="font-family: Verdana,sans-serif;">Г) измене<span style="font-family: Verdana,sans-serif;">нн‹й <span style="font-family: Verdana,sans-serif;">файл копируется на <span style="font-family: Verdana,sans-serif;">dCache под стар‹м именем.</span></span></span> </span> <span style="font-family: Verdana,sans-serif;">Доступ пользователей <span style="font-family: Verdana,sans-serif;">к своим файлам на<span style="font-family: Verdana,sans-serif;"> </span></span><span style="font-family: Verdana,sans-serif;">dC<span style="font-family: Verdana,sans-serif;">ache <span style="font-family: Verdana,sans-serif;">возможен только с интерактивной ферм‹</span></span></span></span> <!-- P { margin-bottom: 0.21cm; } --> <span style="font-family: Verdana,sans-serif;"><span style="font-family: Verdana,sans-serif;"><span style="font-family: Verdana,sans-serif;"><span style="font-family: Verdana,sans-serif;">lxpub<span style="font-family: Verdana,sans-serif;">[01-05,11].ji<span style="font-family: Verdana,sans-serif;">nr.ru </span></span>через </span></span></span>протокол </span><strong><span style="font-family: Verdana,sans-serif;">dcap</span></strong><span style="font-family: Verdana,sans-serif;">или утилит<span style="font-family: Verdana,sans-serif;">у </span>копирования </span><strong><span style="font-family: Verdana,sans-serif;">dccp.</span></strong> <!-- P { margin-bottom: 0.21cm; } --><!-- P { margin-bottom: 0.21cm; } --> Для операций чтения используется <span style="font-family: Verdana,sans-serif;"><span style="font-family: Verdana,sans-serif;">l</span><strong>xse-dc01.jinr.ru:22125</strong><span style="font-family: Verdana,sans-serif;">, <span style="font-family: Verdana,sans-serif;">для записи </span></span> *lxse-dc01.jinr.ru:22126* <span style="font-family: Verdana,sans-serif;">.</span></span> <span style="font-family: Verdana,sans-serif;"><span style="font-family: Verdana,sans-serif;"><em><span style="font-family: Verdana,sans-serif;">Пример<span style="font-family: Verdana,sans-serif;">.</span></span></em><br /></span></span> <span style="font-family: Verdana,sans-serif;"><span style="font-family: Verdana,sans-serif;"><br /></span></span> -- Main.TWikiAdminUser - 2014-08-11:
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Topic revision: r3 - 2015-02-19
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