From: Roman Mamedov <roman@rm.pp.ru>
To: Graham Mitchell <gmitch@woodlea.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID6 and crashes (reporting back re. --bitmap)
Date: Fri, 11 Jun 2010 10:41:34 +0600 [thread overview]
Message-ID: <20100611104134.2d3d94eb@natsu> (raw)
In-Reply-To: <001501cb091f$07ac4e40$1704eac0$@woodlea.com>
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On Fri, 11 Jun 2010 00:31:57 -0400
"Graham Mitchell" <gmitch@woodlea.com> wrote:
> Can you do this on a live array, or can it only be done (as the docs seem to
> suggest), with the create, build and grow options?
It is a variant of the grow operation, but it can be done on a live array,
even mounted, and completes instantly:
mdadm --grow /dev/md0 --bitmap=internal --bitmap-chunk=131072
In my experience, removing the bitmap (setting it to none) may occasionally
fail (probably when the array has a lot of outstanding write requests), but
just try again when it's a bit quieter, and it'll work.
--
With respect,
Roman
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next prev parent reply other threads:[~2010-06-11 4:41 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-10 18:02 RAID6 and crashes Miles Fidelman
2010-06-10 18:57 ` Roman Mamedov
2010-06-10 21:22 ` RAID6 and crashes (reporting back re. --bitmap) Miles Fidelman
2010-06-10 21:41 ` Roman Mamedov
2010-06-10 22:40 ` Miles Fidelman
2010-06-11 2:51 ` Roman Mamedov
2010-06-11 4:31 ` Graham Mitchell
2010-06-11 4:41 ` Roman Mamedov [this message]
2010-06-11 12:13 ` Graham Mitchell
2010-06-11 4:42 ` Miles Fidelman
2010-06-11 4:50 ` Neil Brown
2010-06-13 14:28 ` Bernd Schubert
2010-06-13 23:05 ` Neil Brown
2010-06-14 9:01 ` Bernd Schubert
2010-06-14 9:14 ` Roman Mamedov
2010-06-14 9:47 ` Neil Brown
2010-06-14 11:53 ` Roman Mamedov
2010-06-14 21:24 ` Neil Brown
2010-06-11 4:46 ` Miles Fidelman
2010-06-11 4:55 ` Roman Mamedov
2010-06-11 20:26 ` Miles Fidelman
2010-06-11 5:08 ` Neil Brown
2010-06-11 11:10 ` John Hendrikx
2010-06-11 11:50 ` Roman Mamedov
2010-06-11 12:29 ` Graham Mitchell
2010-06-11 12:25 ` Graham Mitchell
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