From: NeilBrown <neilb@suse.de>
To: Piergiorgio Sartor <piergiorgio.sartor@nexgo.de>
Cc: linux-raid@vger.kernel.org
Subject: Re: Chunk size change stop/restart
Date: Wed, 18 Dec 2013 09:32:10 +1100 [thread overview]
Message-ID: <20131218093210.46a208a2@notabene.brown> (raw)
In-Reply-To: <20131217190019.GA1883@lazy.lzy>
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On Tue, 17 Dec 2013 20:00:19 +0100 Piergiorgio Sartor
<piergiorgio.sartor@nexgo.de> wrote:
> Hi all,
>
> I started the process of changing the chunk
> size of a RAID-5 array (5 HDDs).
>
> Unfortunately, I unwisely choose a quite slow
> device for the backup file.
>
> Is it possible, without stopping the array, to
> stop the "reshape", move the backup file to a
> faster place and restart the process?
You might be able to kill the mdadm which over-sees the reshape, move the
file, then use --grow --continue to continue the reshape.
But I've never tested this and suspect that something would go wrong.
Stopping, moving, and re-assembling should work.
Being patient also works, but can be very difficult.
NeilBrown
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next prev parent reply other threads:[~2013-12-17 22:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-17 19:00 Chunk size change stop/restart Piergiorgio Sartor
2013-12-17 22:32 ` NeilBrown [this message]
2013-12-18 18:31 ` Piergiorgio Sartor
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