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From: thunder7@xs4all.nl
To: Chris Fanning <christopher.fanning@gmail.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: not resyncing after power cut.
Date: Mon, 21 May 2007 22:03:25 +0200	[thread overview]
Message-ID: <20070521200324.GB21027@amd64.of.nowhere> (raw)
In-Reply-To: <215ff4410705210808g779ba32dhee018f0bd81382d8@mail.gmail.com>

From: Chris Fanning <christopher.fanning@gmail.com>
Date: Mon, May 21, 2007 at 05:08:47PM +0200
> Hi,
> 
> I've got a couple of doubts.
> 
> Since more than a year ago I setup mdadm raid1 on new instalations
> (thanks for your work).
> On the older machines, mdadm -D shows them in a dirty state. I know
> that this is/was as expected. If there is a power cut, the machine
> boots and a dirty array is resynced, ¿right?
> 
> On newer installations, mdadm -D shows arrays in a clean state. I had
> always thought that this was ok becuase I'd read somewhere that the
> term 'dirty' was causing confusion and it got changed.
> So, state: clean, is what I should expect?
> 
If the newer machines have bitmaps on, the resync is generally faster
than finishing booting - so when you can log in, the array is clean
again.

Do they use bitmaps?

Kind regards,
Jurriaan
-- 
Look - either dualism sucks, or it doesn't.
Debian (Unstable) GNU/Linux 2.6.21-mm2 2x4021 bogomips load load 3.73
the Jack Vance Integral Edition: http://www.integralarchive.org
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  reply	other threads:[~2007-05-21 20:03 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-21 15:08 not resyncing after power cut Chris Fanning
2007-05-21 20:03 ` thunder7 [this message]
2007-05-22  9:10 ` Neil Brown
2007-05-22 10:21   ` Chris Fanning

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