URGENT: Need help rebuilding iir RAID5 array with failed drive

[Søren Schmidt]

On 28Jun, 2008, at 12:49 , Garrett Cooper wrote:

> On Sat, Jun 28, 2008 at 2:02 AM, Søren Schmidt <sos at freebsd.org>  
> wrote:
>>
>> Erm, this makes no sense at all. You state you use the "iir" driver  
>> for the
>> card, yet you expect to see the devices under ATA ?  Those are two  
>> very
>> different animals, you can't use them together in away way or  
>> fashion on the
>> same drives.
>>
>> That asks the question: which one is it ?
>>
>> If you use "iir" I have no idea how/if a rebuild is possible under  
>> FreeBSD,
>> however it could be in the BIOS or with any other OS that supports  
>> it (here
>> the HW should have kept your parity data intact).
>>
>> If you use ATA you shouldn't have used RAID5 as the docs tell you,  
>> as there
>> will be no parity data to rebuild from no matter what BIOS/OS you  
>> use -> you
>> will get garbage no matter what.
>
> Uhm... ok, I'll bite. What documentation states how to use RAID's
> under FreeBSD properly? The GEOM docs didn't seem to be what I was
> looking for back then.

Depends on what controller you are using, that is still the question ?

-Søren
>