On Aug 29, 2011, at 2:07 PM, Roy Sigurd Karlsbakk wrote: > Hi all > > It seems recent WD drives that aren't "Raid edition" can cause rather a lot > of problems on RAID systems. We have a few machines with LSI controllers > (6801/6081/9201) and we're seeing massive errors occuring. The usual pattern > is a drive failing or even a resilver/scrub starting and then, suddenly, most > drives on the whole backplane report errors. These are usually No Device (as > reported by iostat -En), but the result is that we may see data corruption at > the end. We also have a system setup with Hitachi Deskstars, which has been > running for almost a year without issues. One system with a mixture of WD > Blacks and greens showed the same errors as described, but has been working > well after the WD drives were replaced by deskstars.
Sounds familiar. > > Now, it seems WD has changed their firmware to inhibit people from using them > for other things than toys (read: PCs etc). Since we've seen this issue on > different controllers and different drives, and can't reproduce it with > Hitachi Deskstars, I would guess the firmware "upgrade" from WD is the issue. Likely. > > Would it be possible to fix this in ZFS somehow? No, the error is 1-2 layers below ZFS. > The drives seem to work well except for those "No Device" errors…. 'nuff said. -- richard _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
