From: Thomas Arthur Oehser <tom@toms.net>
To: Asdo <asdo@shiftmail.org>
Cc: linux-raid <linux-raid@vger.kernel.org>
Subject: Re: Is shrinking raid5 possible?
Date: Fri, 6 Nov 2009 10:26:23 -0500 [thread overview]
Message-ID: <20091106152623.GA13412@Toms.NET> (raw)
In-Reply-To: <4AF43B14.60804@shiftmail.org>
> Putting swap in a raid-0 will hang your computer as soon as sda, sdb or
> sdc fails.
> Are you OK with that?
I'll move the swap to the partitions then, though it is a moot point as
the machine has 4G physical RAM and runs with a load such that usually
about 2G is cache... I assume that if it never swaps, it never matters.
But what I care about is the raid-5 shrinking issue... does anyone know
if there is a reasonably safe way to shrink a raid-5 device (size, not
number of drives) that is superblock format 0.90? I assume the --grow
just forces the superblock based on the _device_, but if I shrank the
_device_ before I shrank the raid, it wouldn't find the superblock in
the first place...
-Tom
next prev parent reply other threads:[~2009-11-06 15:26 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-19 2:30 Is shrinking raid5 possible? Paul Davidson
2006-06-19 4:39 ` Neil Brown
2006-06-19 5:07 ` Paul Davidson
2006-06-23 0:49 ` Bill Davidsen
2006-06-23 1:26 ` Neil Brown
2006-06-23 2:17 ` Paul Davidson
2006-06-23 8:34 ` Henrik Holst
2006-06-23 18:16 ` Christian Pernegger
2006-06-26 7:41 ` Neil Brown
2006-06-26 11:33 ` Christian Pernegger
2006-11-22 20:40 ` Henrik Holst
2009-11-06 13:17 ` Thomas Arthur Oehser
2009-11-06 15:04 ` Asdo
2009-11-06 15:26 ` Thomas Arthur Oehser [this message]
2009-11-06 17:00 ` Goswin von Brederlow
2009-11-06 18:32 ` John Robinson
2009-11-06 18:38 ` Thomas Arthur Oehser
2009-11-06 19:30 ` Goswin von Brederlow
2009-11-06 19:38 ` John Robinson
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