On Aug 6, 2011, at 9:45 AM, Roy Sigurd Karlsbakk wrote: > Hi all > > We have a few servers with WD Black (and some green) drives on Super Micro > systems. We've seen both drives work well with direct attach, but with LSI > controllers and Super Micro's SAS expanders, well, that's another story. With > those SAS expanders, we've seen numerous drives being kicked out and flagged > as bad during high load (typically scrub/resilver). We have not seen this on > the units we have with Hitachi or Seagate drives. After a drive is kicked > out, we run a test on it, using WDs tool, and in many (or most) cases, we > find the drive being error free. We've seen these issues on several machines, > so hardware failure seem not to be the case. > > Have anyone here used WD drives with LSI controllers (3801/3081/9211) with > Super Micro machines? Any success stories?
In my experience, SATA drives behind SAS expanders just don't work. They "fail" in the manner you describe, sooner or later. Use SAS and be happy. -- richard _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
