[mythtv-users] OT -- Raid Card

[Deyan]

On Wed, Aug 12, 2009 at 7:10 PM, Michael Heironimus<mkh01 at earthlink.net> wrote:
> On Wed, Aug 12, 2009 at 04:50:39PM -0700, Doug Young wrote:
>> Sorry for being off topic here, as this doesn't pertain to my myth
>> box, but I know there's a lot of raid knowledge here, so I'm hoping
>> someone has some experience...
>>
>> I have a friend who is experiencing data loss on his FreeBSD
>> fileserver using an intel SRCU42X card.  It appears this is an LSI
>> MegaRaid card rebranded Intel, as it uses the amr driver in FreeBSD,
>> not the iir.  He's looking for a drop in replacement.  Other than
>> buying that exact card again, does anyone have experience with what
>> might be compatible?
>
> Depends on why he's seeing data loss. If it's because the card is
> failing, ebay is likely to have the same model for cheap and he won't
> get much more "drop in" than that. If it's because the driver isn't
> quite right, he's probably out of luck. I think MegaRAID controllers are
> compatible as long as you stay reasonably close to the same family, but
> if it's a driver-related problem the same family may have a high risk of
> the same problems.
>
> --
> Michael Heironimus

I'd read the manufacturer documentation that comes with the cards
firmware as well - I've seen some of the Dell branded RAID cards are
not compatible even with different versions of the same card's
firmware - the recommendation was to backup the RAID before the
upgrade and then restore after the upgrade, quite a pain so we ended
up never upgrading the firmware even though the new one promised much
better performance.

--dejan