Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 29 Jun 2008 12:57:20 +0200
From:      Rainer Duffner <rainer@ultra-secure.de>
To:        Garrett Cooper <yanefbsd@gmail.com>
Cc:        current@freebsd.org
Subject:   Re: URGENT: Need help rebuilding iir RAID5 array with failed drive
Message-ID:  <F8F21D91-0BF9-4525-A397-D2632821C7E5@ultra-secure.de>
In-Reply-To: <7d6fde3d0806282011x472f8d27s955a8e1ab43a7341@mail.gmail.com>
References:  <7d6fde3d0806260649t6619521bv92b65c472ddb7e1@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> <6.0.0.22.2.20080628132240.0255ba38@mail.computinginnovations.com> <7d6fde3d0806281410r781a6a77k98ffe237c10e3eee@mail.gmail.com> <D0A03968-B9F2-4EF8-B754-D0EFA90A9C1E@FreeBSD.ORG> <7d6fde3d0806282011x472f8d27s955a8e1ab43a7341@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help

Am 29.06.2008 um 05:11 schrieb Garrett Cooper:

>
> Just as you predicted, the disk(s) are unreadable still, even after
> the rebuild (and I hope to hell that it didn't destroy/disturb any
> data on the surviving members).
>
> I may just have to get it sent off for recovery (after I dd the
> remaining members because there's still some usable data there --
> bloody 2.7TB ... grr) -- apart from that I don't think I have a
> choice.


<tongue in cheek>
If the data was worth so much that it values recovery....
</tongue in cheek>

>
> Oh, where's this "document" of which you speak all the time? I don't
> see anything about parity support not being available in either the
> geom or iir manpage, or the iir sourcecode. If someone needs a helping
> hand inserting that logic into the kernel, I'll gladly assist so
> others don't follow my footsteps and fsck up their data.
>


On our HP DL320G5s, FreeBSD7 didn't even detect the MatrixRAID array  
(RAID1).
Even the Windoze-guys tell us that they don't trust it.

So we settled for RAID1 via gmirror.

MatrixRAID is a scam, if you ask me - like all the other BIOS-RAIDs  
we have had the displeasure to see over the years.
I really thought it was common knowledge.  But now that you mention  
it, I can't find a reference to this in the FreeBSD docs (at least  
not with a quick look).
The handbook-example uses RAID1, though.



Rainer
-- 
Rainer Duffner
CISSP, LPI, MCSE
rainer@ultra-secure.de





Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?F8F21D91-0BF9-4525-A397-D2632821C7E5>