From: Lars Marowsky-Bree <lmb@suse.de>
To: Luca Berra <bluca@comedia.it>
Cc: linux-raid@vger.kernel.org
Subject: Re: stacked raid devices not autodetected?
Date: Mon, 6 Dec 2004 14:16:26 +0100 [thread overview]
Message-ID: <20041206131626.GT3858@marowsky-bree.de> (raw)
In-Reply-To: <20041206114923.GF4693@percy.comedia.it>
On 2004-12-06T12:49:24, Luca Berra <bluca@comedia.it> wrote:
> >>> Is this a bug? A design limitation? Something else?
> >>this is one of the limitations of the in-kernel autodetection
> >You can pull a fix for that one out of the SUSE kernel, where we add md
> >devices we just started to the auto detection. It worked pretty well in
> >2.4, but my memory is hazed when I try to recall whether it was all
> >ported to 2.6...
> >
> is it worth doing that in-kernel, i really believe that identifying
> and starting arrays is a job that is better done in user-space.
I'm not disagreeing, I'm only pointing out that it is possible and what
the general fix looks like. We had a customer requirement to get it done
that way, and at the time it was just the fastest way to code it.
I'm a fan of moving discovery to user-land, alas I'm also a fan of frank
words and right now the much hailed user-space discovery of RAIDs,
partitions etc still has a couple of months to go to stabilize ;-)
Sincerely,
Lars Marowsky-Brée <lmb@suse.de>
--
High Availability & Clustering
SUSE Labs, Research and Development
SUSE LINUX Products GmbH - A Novell Business
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prev parent reply other threads:[~2004-12-06 13:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-02 22:32 stacked raid devices not autodetected? James Ralston
2004-12-03 15:34 ` Luca Berra
[not found] ` <36652.212.158.231.74.1102208997.squirrel@mail.fsck.co.uk>
2004-12-05 7:26 ` Luca Berra
2004-12-06 6:41 ` Odd md related top output with kernel 2.4.28 Guy
2004-12-06 7:15 ` Guy
[not found] ` <20041206113752.GM3858@marowsky-bree.de>
2004-12-06 11:49 ` stacked raid devices not autodetected? Luca Berra
2004-12-06 13:16 ` Lars Marowsky-Bree [this message]
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