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From: Neil Brown <neilb@suse.de>
To: "Lars Täuber" <taeuber@bbaw.de>
Cc: linux-raid@vger.kernel.org
Subject: Re: equal size not large enough for RAID1?
Date: Fri, 7 Mar 2008 14:43:51 +1100	[thread overview]
Message-ID: <18384.47607.709703.403641@notabene.brown> (raw)
In-Reply-To: message from Lars Tauber on Thursday March 6

On Thursday March 6, taeuber@bbaw.de wrote:
> 
> What is this internal bitmap good for? Is there a documentation
> somewhere on the net about this? 

  man md
and search for BITMAP.  There is a section of BITMAP WRITE-INTENT
LOGGING.

> 
> I just repeated the following:
> 
> monosan:~ # mdadm -C /dev/md9 -l1 -n2 -x0 /dev/md4 /dev/etherd/e22.0 
> mdadm: Defaulting to verion 1.0 metadata
> mdadm: /dev/md4 appears to be part of a raid array:
>     level=raid1 devices=2 ctime=Thu Mar  6 09:39:37 2008
> mdadm: /dev/etherd/e22.0 appears to be part of a raid array:
>     level=raid1 devices=2 ctime=Thu Mar  6 09:39:37 2008
> Continue creating array? y
> mdadm: array /dev/md9 started.
> 
> monosan:~ # mdadm -V
> mdadm - v2.6.2 - 21st May 2007
> 
> monosan:~ # mdadm /dev/md9 -f /dev/etherd/e22.0 
> mdadm: set /dev/etherd/e22.0 faulty in /dev/md9
> 
> monosan:~ # mdadm /dev/md9 -r /dev/etherd/e22.0 
> mdadm: hot removed /dev/etherd/e22.0
> 
> monosan:~ # mdadm /dev/md9 -a /dev/etherd/e22.0 
> mdadm: /dev/etherd/e22.0 not large enough to join array

Hmm..  I just read through the change logs and I see there was a bug
here that was fixed in 2.6.3.
If you want an update from SuSE you would need to log a bug report in
the Novell bugzilla.

Alternately request v0.90 metadata (--metadata=0.90)  That will avoid
the bug.

NeilBrown

  reply	other threads:[~2008-03-07  3:43 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-05  9:05 equal size not large enough for RAID1? Lars Täuber
     [not found] ` <18383.24086.165437.659336@notabene.brown>
2008-03-06  9:11   ` Lars Täuber
2008-03-07  3:43     ` Neil Brown [this message]
2008-03-07 11:08       ` Lars Täuber

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