From: Phil Turmel <philip@turmel.org>
To: Piotr Klimek <piotr@klimek.net.pl>, linux-raid@vger.kernel.org
Subject: Re: RAID6 reshape integer problem
Date: Fri, 03 Jan 2014 07:56:46 -0500 [thread overview]
Message-ID: <52C6B38E.8050804@turmel.org> (raw)
In-Reply-To: <loom.20140103T101338-556@post.gmane.org>
On 01/03/2014 04:30 AM, Piotr Klimek wrote:
> Hello,
> I was trying to migrate from 5x3TB RAID5 to 6x3TB RAID6 with this command:
>
> $ mdadm --grow /dev/md1 --level=6 --raid-devices=6 --
> backup=/home/archiwum/r6.bak
>
> After couple of days reshape stalled on 2147483648 block. I have found that
> this is a bug in mdadm. 2147483648 is max integer on 32 bit system. For now
> situation looks like this:
You'll certainly have to take production down long enough to let a newer
kernel finish the reshape. Or you could be brave and replace the kernel
and let production continue through the balance of the reshape.
HTH,
Phil
next prev parent reply other threads:[~2014-01-03 12:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-03 9:30 RAID6 reshape integer problem Piotr Klimek
2014-01-03 12:56 ` Phil Turmel [this message]
2014-01-03 13:43 ` Piotr Klimek
[not found] ` <CAM8eUy0=YbC68vesaLPSp0RhL_2c8byVyROMGv2DdQ2_JSjYrg@mail.gmail.com>
2014-01-03 17:07 ` Phil Turmel
2014-01-08 11:19 ` Piotr Klimek
2014-01-08 16:32 ` joystick
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