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what would cause a SAS hard drive not to be recognized by storage array?
I have a few 2TB Western Digital SAS 3.5" hard drives. They are new as in manufactured within the last year. I know the drive itself is good because i installed it into an older server, it got recognized by the EFI/bios firmware and i installed linux on it no problem.
I have an old storage array, circa 2007, that uses 3.5" SAS drives. When I got these storage arrays back then they came with Seagate drives, primarily cheetah 300gb SAS. And i have converters that I can use SATA drives in this storage array, and it also uses Seagate 500/750 gb SATA drives. The storage array is also 3gbps, it was built before the introduction of 6gps. Over the years I've plugged in 1TB WD blue drives and they recognized and worked. I've used Seagate 2TB SATA drives. Tried a 3TB drive once but it immediately faulted when plugged in so i'm guessing there's a hard limit to 2TB... which is fine.
However when i try to use my 2TB WD SAS drive, it spins up and has a green light but the storage array software never recognizes it. and the storage array software will either hang or lose connection to the storage array. I pull the WD 2TB sas drive out, do a refresh, and the storage array software works again.
What might cause this, in more detail than saying firmware incompatibility?
I've never had a problem with backward compatibility on hard drives so i'm pissed these drives don't work. And I figured SAS of all things would work.
Last edited by ron7000; 03-12-2015 at 08:38 PM.
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