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From: Chris Webb <chris@arachsys.com>
To: Peter Rabbitson <rabbit+list@rabbit.us>
Cc: linux-raid@vger.kernel.org
Subject: Re: Trouble increasing md component size
Date: Wed, 18 Jun 2008 21:00:36 +0100	[thread overview]
Message-ID: <20080618200036.GB30682@arachsys.com> (raw)
In-Reply-To: <4859605D.90509@rabbit.us>

Peter Rabbitson <rabbit+list@rabbit.us> writes:

> I had exactly the same problem some months ago. The key is in the
> (obscure) assembly option --update=devicesize. Find it in the mdadm
> manpage and the whole picture will come together instantly. The wisdom is
> not very widespread as this affects only V1.1 and 1.2 superblocks.

Thanks, that's great. I've been using a man page slightly older (2.5.6) than
the mdadm binary I'm using (2.6.7), which doesn't mention update=devicesize,
although I'd probably have missed it anyway!

However, is there a way to do this without stopping the array first? I'm
using it as an LVM PV and slicing it up into logical volumes which clients
will be running off while I'm wanting to grow it.

Cheers,

Chris.

  reply	other threads:[~2008-06-18 20:00 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-18 18:26 Trouble increasing md component size Chris Webb
2008-06-18 19:22 ` Peter Rabbitson
2008-06-18 20:00   ` Chris Webb [this message]
2008-06-19  3:42     ` Neil Brown
2008-06-19 15:45       ` Chris Webb
2008-06-19 23:10         ` Chris Webb
2008-06-19 23:49         ` Chris Webb
2008-06-20 11:13           ` Chris Webb
2008-06-20 14:24             ` Chris Webb
2008-06-23  1:26               ` Neil Brown
2008-06-23 11:18                 ` Chris Webb
2008-06-23 22:53                   ` Neil Brown
2008-06-24 11:47                     ` Chris Webb
2008-06-24 23:19                       ` Chris Webb
2008-09-17 18:11                         ` [PATCH] md: Fix rdev_size_store with size = 0 Chris Webb
2008-10-07 12:40                         ` [Resend] " Chris Webb
2008-10-13  0:54                           ` Neil Brown
2008-06-24  2:40                   ` Trouble increasing md component size Neil Brown

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