Re: stacked raid devices not autodetected?

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On 2004-12-06T12:49:24, Luca Berra <bluca@xxxxxxxxxx> 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@xxxxxxx>

-- 
High Availability & Clustering
SUSE Labs, Research and Development
SUSE LINUX Products GmbH - A Novell Business

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