From: Neil Brown <neilb@suse.de>
To: John Robinson <john.robinson@anonymous.org.uk>
Cc: Benjamin Schieder <blindcoder@scavenger.homeip.net>,
linux-raid@vger.kernel.org
Subject: Re: How to remove non-existant device
Date: Fri, 24 Sep 2010 07:54:49 +1000 [thread overview]
Message-ID: <20100924075449.26c7e59d@notabene> (raw)
In-Reply-To: <4C9B5323.3020201@anonymous.org.uk>
On Thu, 23 Sep 2010 14:16:19 +0100
John Robinson <john.robinson@anonymous.org.uk> wrote:
> On 23/09/2010 08:30, Benjamin Schieder wrote:
> > Hi all.
> >
> > On a SLES 10 SP 3 x86_64 version I'm encountering the following problem:
> >
> > Two disks sda and sdb are in a RAID 1 configuration. When pulling one
> > disk and replacing it it becomes sdc instead of sda. The RAID is now
> > degraded:
> >
> > kblhbe101:~ # cat /proc/mdstat
> > Personalities : [raid1] [raid0] [raid5] [raid4] [linear]
> > md2 : active raid1 sda8[2](F) sdb8[1]
> > 286125568 blocks [2/1] [_U]
> >
> > md0 : active raid1 sda5[2](F) sdb5[1]
> > 529984 blocks [2/1] [_U]
> >
> > md3 : active raid1 sda7[2](F) sdb7[1]
> > 4200896 blocks [2/1] [_U]
> >
> > md1 : active raid1 sda6[2](F) sdb6[1]
> > 2104384 blocks [2/1] [_U]
> >
> > unused devices:<none>
> >
> > But now I can't remove the sda partitions from the RAID:
> > kblhbe101:~ # mdadm /dev/md0 -r /dev/sda5
> > mdadm: cannot find /dev/sda5: No such file or directory
> > kblhbe101:~ # mdadm /dev/md0 -r sda5
> > mdadm: cannot find sda5: No such file or directory
> >
> > What am I doing wrong here?
> > kblhbe101:~ # mdadm --version
> > mdadm - v2.6 - 21 December 2006
>
> Try `mdadm /dev/md0 -r missing`.
Close. "missing" is only meaningful with --re-add.
You really want "-r faileded" or "-r detached"
NeilBrown
>
> Cheers,
>
> John.
>
> --
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next prev parent reply other threads:[~2010-09-23 21:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-23 7:30 How to remove non-existant device Benjamin Schieder
2010-09-23 13:16 ` John Robinson
2010-09-23 21:54 ` Neil Brown [this message]
2010-09-24 2:18 ` John Robinson
2010-09-23 17:23 ` Bill Davidsen
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