From: Richard Scobie <richard@sauce.co.nz>
To: Linux RAID Mailing List <linux-raid@vger.kernel.org>
Subject: Re: reducing the number of disks a RAID1 expects
Date: Mon, 10 Sep 2007 14:29:46 +1200 [thread overview]
Message-ID: <46E4AC1A.3010509@sauce.co.nz> (raw)
In-Reply-To: <46E49991.9000000@getsu.com>
J. David Beutel wrote:
> My /dev/hdd started failing its SMART check, so I removed it from a RAID1:
>
> # mdadm /dev/md5 -f /dev/hdd2 -r /dev/hdd2
>
> Now when I boot it looks like this in /proc/mdstat:
>
> md5 : active raid1 hdc8[2] hdg8[1]
> 58604992 blocks [3/2] [_UU]
>
> and I get a "DegradedArray event on /dev/md5" email on every boot from
> mdadm monitoring. I only need 2 disks in md5 now. How can I stop it
> from being considered "degraded"? I added a 3rd disk a while ago just
> because I got a new disk with plenty of space, and little /dev/hdd was
> getting old.
>
> mdadm - v1.6.0 - 4 June 2004
> Linux 2.6.12-1.1381_FC3 #1 Fri Oct 21 03:46:55 EDT 2005 i686 athlon i386
> GNU/Linux
>
Have a look at the "Grow Mode" section of the mdadm man page.
It looks as though you should just need to use the same command you used
to grow it to 3 drives, except specify only 2 this time.
Regards,
Richard
next prev parent reply other threads:[~2007-09-10 2:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-10 1:10 reducing the number of disks a RAID1 expects J. David Beutel
2007-09-10 2:29 ` Richard Scobie [this message]
2007-09-10 7:31 ` J. David Beutel
2007-09-10 9:55 ` Iustin Pop
2007-09-11 13:33 ` Bill Davidsen
2007-09-11 14:04 ` Neil Brown
2007-09-15 21:13 ` J. David Beutel
2007-09-16 22:09 ` Goswin von Brederlow
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