On Sun, Dec 13, 2009 at 5:27 PM, Todd Lyons <[email protected]> wrote:
>
> ... The firmware is supposed to be fixed in the
> latest released drives that the Tivo uses, double check that there
> hasn't been a really recent firmware release since you last updated
> your firmware.
>

Having seen the warning about updating the firmware and destroying
RAID configs combined with the problem reports and performance issues
we've seen, I think I'll just swap out the disks for other brands and
deal with the firmware updates when I can be as destructive as I want.

Since the original post I've seen identical dropouts of Dell-supplied
WD Enterprise model disks, too. In these cases the disks showed
reallocated sectors in their SMART data, but were below the SMART
failure threshold. I think the 'wrong' disks don't help reliability,
but on the whole the fact the SAS6i/R is a low end largely software
based RAID card means that events such as sector remapping and TLER
are not shielded well from the OS and drivers, resulting in the disks
dropping out of sync or causing errors, rather than it all being
handled by the card hardware and therefore largely invisible to the
OS.

You get what you pay for - as they say.

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