Re: [zfs-discuss] [OpenIndiana-discuss] BAD WD drives - defective by design?
And, yes, they're connected to an LSI SAS expander from Super Micro. Works well with Seagate and Hitachi, but not with WD - Original Message - > The drives are attached to a backplane? > > Try using 4k sector sizes and see if that improves it - I've seen and > been part of a number of discussions which involved this - and you, I > think, actually. > > - Rich > > On Mon, Aug 29, 2011 at 5:07 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. > > > > 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. > > > > Would it be possible to fix this in ZFS somehow? The drives seem to > > work well except for those "No Device" errors > > > > Vennlige hilsener / Best regards > > > > roy > > -- > > Roy Sigurd Karlsbakk > > (+47) 97542685 > > r...@karlsbakk.net > > http://blogg.karlsbakk.net/ > > -- > > I all pedagogikk er det essensielt at pensum presenteres > > intelligibelt. Det er et elementært imperativ for alle pedagoger å > > unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de > > fleste tilfeller eksisterer adekvate og relevante synonymer på > > norsk. > > > > ___ > > OpenIndiana-discuss mailing list > > openindiana-disc...@openindiana.org > > http://openindiana.org/mailman/listinfo/openindiana-discuss > > > > ___ > OpenIndiana-discuss mailing list > openindiana-disc...@openindiana.org > http://openindiana.org/mailman/listinfo/openindiana-discuss -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] [OpenIndiana-discuss] BAD WD drives - defective by design?
All drives have 512b sector sizes, WD FASS (blacks) and WD EADS (greens) both use plain old 512 sectors. - Original Message - > The drives are attached to a backplane? > > Try using 4k sector sizes and see if that improves it - I've seen and > been part of a number of discussions which involved this - and you, I > think, actually. > > - Rich > > On Mon, Aug 29, 2011 at 5:07 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. > > > > 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. > > > > Would it be possible to fix this in ZFS somehow? The drives seem to > > work well except for those "No Device" errors > > > > Vennlige hilsener / Best regards > > > > roy > > -- > > Roy Sigurd Karlsbakk > > (+47) 97542685 > > r...@karlsbakk.net > > http://blogg.karlsbakk.net/ > > -- > > I all pedagogikk er det essensielt at pensum presenteres > > intelligibelt. Det er et elementært imperativ for alle pedagoger å > > unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de > > fleste tilfeller eksisterer adekvate og relevante synonymer på > > norsk. > > > > ___ > > OpenIndiana-discuss mailing list > > openindiana-disc...@openindiana.org > > http://openindiana.org/mailman/listinfo/openindiana-discuss > > > > ___ > OpenIndiana-discuss mailing list > openindiana-disc...@openindiana.org > http://openindiana.org/mailman/listinfo/openindiana-discuss -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] [OpenIndiana-discuss] BAD WD drives - defective by design?
The drives are attached to a backplane? Try using 4k sector sizes and see if that improves it - I've seen and been part of a number of discussions which involved this - and you, I think, actually. - Rich On Mon, Aug 29, 2011 at 5:07 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. > > 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. > > Would it be possible to fix this in ZFS somehow? The drives seem to work well > except for those "No Device" errors > > Vennlige hilsener / Best regards > > roy > -- > Roy Sigurd Karlsbakk > (+47) 97542685 > r...@karlsbakk.net > http://blogg.karlsbakk.net/ > -- > I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det > er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av > idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og > relevante synonymer på norsk. > > ___ > OpenIndiana-discuss mailing list > openindiana-disc...@openindiana.org > http://openindiana.org/mailman/listinfo/openindiana-discuss > ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
