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Date:      Sat, 28 Jun 2008 14:29:21 +0200
From:      =?ISO-8859-1?Q?S=F8ren_Schmidt?= <sos@freebsd.org>
To:        "Garrett Cooper" <yanefbsd@gmail.com>
Cc:        current@freebsd.org
Subject:   Re: URGENT: Need help rebuilding iir RAID5 array with failed drive
Message-ID:  <8BCFBA71-A39B-4A0E-9744-EEE8CEE2C3DA@freebsd.org>
In-Reply-To: <7d6fde3d0806280349j7eace513idb5cd81f9e2e4e0a@mail.gmail.com>
References:  <7d6fde3d0806260649t6619521bv92b65c472ddb7e1@mail.gmail.com> <1214492963.35536.22.camel@localhost> <4863B968.4040805@clearchain.com> <7d6fde3d0806262004u171bf9dx179564be5a76d9c7@mail.gmail.com> <6.0.0.22.2.20080627170323.02591528@mail.computinginnovations.com> <7d6fde3d0806272057p795277a2ie60ac7d7d10f0a6e@mail.gmail.com> <7d6fde3d0806280129i31874960ofbc7627598e1426f@mail.gmail.com> <735A937C-89A9-411A-AA3F-377F576E635E@freebsd.org> <7d6fde3d0806280348r65875755pf7dc3917bba2bcb5@mail.gmail.com> <7d6fde3d0806280349j7eace513idb5cd81f9e2e4e0a@mail.gmail.com>

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

> On Sat, Jun 28, 2008 at 2:02 AM, S=F8ren Schmidt <sos@freebsd.org> =20
> wrote:
>>
>> Erm, this makes no sense at all. You state you use the "iir" driver =20=

>> for the
>> card, yet you expect to see the devices under ATA ?  Those are two =20=

>> very
>> different animals, you can't use them together in away way or =20
>> 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 =20=

>> FreeBSD,
>> however it could be in the BIOS or with any other OS that supports =20=

>> 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, =20=

>> as there
>> will be no parity data to rebuild from no matter what BIOS/OS you =20
>> 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 ?

-S=F8ren
>









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