{"id":36,"date":"2008-09-19T15:23:28","date_gmt":"2008-09-19T19:23:28","guid":{"rendered":"http:\/\/www.cs.toronto.edu\/~jhancock\/wlog\/?p=36"},"modified":"2008-09-19T15:23:28","modified_gmt":"2008-09-19T19:23:28","slug":"the-little-binary-that-could-dellmgr","status":"publish","type":"post","link":"http:\/\/www.cs.toronto.edu\/~jhancock\/wlog\/?p=36","title":{"rendered":"The little binary that could: Dellmgr"},"content":{"rendered":"<p>The cluster downtime was avoided, thanks to some helpful advice from Dell.\u00a0 Our cluster uses\u00a0a pair of PowerVault 220S enclosures which are configured in a RAID 5 array.\u00a0 When two of the drives in\u00a0each enclosure went into predictive failure mode, we needed to replace them to ensure the integrity of our data.\u00a0 Since we&#8217;re running <a href=\"http:\/\/www.rocksclusters.org\/wordpress\/\">Rocks<\/a> for the cluster os, the dell openmanage tools that would allow us to do the hotswap while the cluster was running weren&#8217;t available.<\/p>\n<p>\u00a0I didn&#8217;t want to install the openmanage software since it seemed to have a large number of modules and really looked like it might be work (which I try to avoid). A dell rep I talked to recommended <a href=\"http:\/\/ftp.us.dell.com\/scsi-raid\/perc4-rhl-apps-6.01A00.tar.gz\">DELLmgr<\/a> instead. He told me to ignore the other rpms, and install only the following: Dellmgr-5.25-0.i386.rpm . It installs one file, dellmgr.bin, that talks to the PERC controller card and gives you an interface very similar to the one used in the card&#8217;s BIOS, no restart required. I was able to fail the faulty drives and do the rebuild without having to alter the cluster&#8217;s running state at all.<\/p>\n<p>\u00a0It&#8217;s a shame that dell no longer supports it and hasn&#8217;t released a version for the new controller cards.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The cluster downtime was avoided, thanks to some helpful advice from Dell.\u00a0 Our cluster uses\u00a0a pair of PowerVault 220S enclosures which are configured in a RAID 5 array.\u00a0 When two of the drives in\u00a0each enclosure went into predictive failure mode, we needed to replace them to ensure the integrity of our data.\u00a0 Since we&#8217;re running [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[19,22,23],"_links":{"self":[{"href":"http:\/\/www.cs.toronto.edu\/~jhancock\/wlog\/index.php?rest_route=\/wp\/v2\/posts\/36"}],"collection":[{"href":"http:\/\/www.cs.toronto.edu\/~jhancock\/wlog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cs.toronto.edu\/~jhancock\/wlog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cs.toronto.edu\/~jhancock\/wlog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cs.toronto.edu\/~jhancock\/wlog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=36"}],"version-history":[{"count":1,"href":"http:\/\/www.cs.toronto.edu\/~jhancock\/wlog\/index.php?rest_route=\/wp\/v2\/posts\/36\/revisions"}],"predecessor-version":[{"id":37,"href":"http:\/\/www.cs.toronto.edu\/~jhancock\/wlog\/index.php?rest_route=\/wp\/v2\/posts\/36\/revisions\/37"}],"wp:attachment":[{"href":"http:\/\/www.cs.toronto.edu\/~jhancock\/wlog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=36"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cs.toronto.edu\/~jhancock\/wlog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=36"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cs.toronto.edu\/~jhancock\/wlog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=36"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}