From: Neil Brown <neilb@suse.de>
To: senthilkumar.muthukalai@wipro.com
Cc: linux-raid@vger.kernel.org
Subject: Re: Growing Linear RAID
Date: Thu, 10 Dec 2009 20:30:08 +1100 [thread overview]
Message-ID: <20091210203008.69cbbe97@notabene.brown> (raw)
In-Reply-To: <8338BD137FF1B64EB341218BD702985E02C8C165@BLR-EC-MBX03.wipro.com>
On Thu, 10 Dec 2009 13:54:29 +0530
<senthilkumar.muthukalai@wipro.com> wrote:
> Neil,
>
> I get only the following message under /var/log/
>
> [root@NAS00226b1755a0 ~]# mdadm /dev/md0 --grow --add /dev/sata3
> mdadm: Cannot add new disk to this array
>
> Dec 9 20:37:58 NAS00226b1755a0 kernel: md: export_rdev(sdc)
>
> [root@NAS00226b1755a0 ~]# mdadm /dev/md0 --grow --add /dev/sata4
> mdadm: Cannot add new disk to this array
>
> Dec 9 20:38:30 NAS00226b1755a0 kernel: md: export_rdev(sdd)
>
Thanks - that narrows it down quite a bit.
I think that if you run mdadm under 'strace' you will find that the ioctl
fails with ENOSPC.
It seems that growing a linear array didn't work reliably until 2.6.22.
You need
commit a778b73ff793d34c0082f76110f73a7754915067
to make it work properly.
NeilBrown
next prev parent reply other threads:[~2009-12-10 9:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-09 15:01 Growing Linear RAID senthilkumar.muthukalai
2009-12-09 15:30 ` Robin Hill
2009-12-10 1:34 ` Neil Brown
2009-12-10 1:33 ` Neil Brown
2009-12-10 8:24 ` senthilkumar.muthukalai
2009-12-10 9:30 ` Neil Brown [this message]
2009-12-10 12:03 ` senthilkumar.muthukalai
2009-12-16 11:02 ` senthilkumar.muthukalai
2009-12-16 23:14 ` Neil Brown
2009-12-23 16:32 ` senthilkumar.muthukalai
2010-01-04 8:33 ` senthilkumar.muthukalai
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