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Showing posts from May, 2015

That RAID10 Mystery..

Not all RAIDs are created equal and I recently stumbled upon an issue where I was at loss to explain why two different configs seemed to have the same characteristics (RAID-10). On a server with many disks (xd configs), I created two LD’s  (one with ten disks, the other with 12 disks). I asked for a RAID10 config in both cases but I didn't use the same tools to create the RAID's. Creating the two LD’s First LD (racadm on the iDrac):                 send "racadm storage createvd:RAID.Integrated.1-1 -rl r10 -wp wb -rp ra -name Virtual_Disk_1 -ss 512k -pdkey:"                 send "Disk.Bay.2:Enclosure.Internal.0-1:RAID.Integrated.1-1"                 send ",Disk.Bay.3:Enclosure.Internal.0-1:RAID.Integrated.1-1"                 send ",Disk.Bay.4:Enclosure.Internal.0-1:RAID.Integrated.1-1"                 send ",Disk.Bay.5:Enclosure.Internal.0-1:RAID.Integrated.1-1"                 send ",Disk.Bay.6:Enclosure