[OpenIndiana-discuss] BAD WD drives - defective by design?

[Rennie Allen]

I think Rich was suggesting using 4k sectors on the file system, not asking
what the drives sector size was.

On Mon, Aug 29, 2011 at 2:15 PM, Roy Sigurd Karlsbakk <roy at karlsbakk.net>wrote:

> 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
> > <roy at karlsbakk.net> 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
> > > roy at 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.
> > >
> > > _______________________________________________
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> > >
> >
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>
> --
> Vennlige hilsener / Best regards
>
> roy
> --
> Roy Sigurd Karlsbakk
> (+47) 97542685
> roy at 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-discuss at openindiana.org
> http://openindiana.org/mailman/listinfo/openindiana-discuss
>



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