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Re: Interactions between XFS and software RAID?

To: linux-xfs@xxxxxxxxxxx
Subject: Re: Interactions between XFS and software RAID?
From: Thomas Graichen <news-innominate.list.sgi.xfs@xxxxxxxxxxxxx>
Date: 28 Feb 2001 12:45:11 GMT
Distribution: local
Organization: innominate AG, Berlin, Germany
References: <Pine.LNX.4.30.0102280734310.2082-100000@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Reply-to: Thomas Graichen <thomas.graichen@xxxxxxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
User-agent: tin/1.4.4-20000803 ("Vet for the Insane") (UNIX) (Linux/2.4.2-XFS (i686))
Lars Kellogg-Stedman <lars@xxxxxxxxxxxxx> wrote:
> Howdy all,

> I have a single XFS filesystem, mounted on a 4 disk software RAID5 array.
> It's been working just fine, until yesterday when a forced reboot rendered
> the raid in need of a resync.

> The resync starts just fine when the raid device is brought up, but as
> soon as the filesystem is mounted, the resync gets stuck -- the resync
> thread is still running, but nothing happens.  It chews up CPU time and
> renders the system almost unuseable.

> Unmounting the filesystem, stopping the raid array (raidstop) and
> restarting will get the resync going again (until the filesystem is
> mounted, or the resync completes).

> Has anyone else encountered this problem?  I'm running the XFS snapshot
> from Feb 23.

for XFS on SW RAID5 you need the experimental patch postet here
some time ago from either Martin K. Petersen or Russel Cattleman
- i'm now shure who it was ... just look for it in the archives
of the list

t

-- 
thomas.graichen@xxxxxxxxxxxxxx
                                                         innominate AG
                                                  the linux architects
tel: +49-30-308806-13   fax: -77             http://www.innominate.com

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