From: Phil Turmel <philip@turmel.org>
To: Rajasekhar Pulluru <pullururajasekhar@gmail.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: Unable to set chunk size
Date: Thu, 10 May 2012 11:23:10 -0400 [thread overview]
Message-ID: <4FABDD5E.5000103@turmel.org> (raw)
In-Reply-To: <CAGA5_H5c4+9s9OSyQaAxbekfTBDqAsR=y2GJRtO0AdChJTrZNQ@mail.gmail.com>
On 05/10/2012 10:23 AM, Rajasekhar Pulluru wrote:
> Hi All,
>
> I am unable to set chunk size for a raid5 device.
> # cat /sys/block/md0/md/chunk_size
> 1048576
> # echo 4194304 > /sys/block/md0/md/chunk_size
> # cat /sys/block/md0/md/chunk_size
> 1048576
>
> What could be the problem?
That sysfs parameter is read-only. You set the chunk size when you
create the array, or use "mdadm --grow" to reshape it.
HTH,
Phil
prev parent reply other threads:[~2012-05-10 15:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-10 14:23 Unable to set chunk size Rajasekhar Pulluru
2012-05-10 15:23 ` Phil Turmel [this message]
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