From: Neil Brown <neilb@suse.de>
To: John Robinson <john.robinson@anonymous.org.uk>
Cc: "Patrick J. LoPresti" <lopresti@gmail.com>, linux-raid@vger.kernel.org
Subject: Re: Resize RAID-0?
Date: Fri, 12 Mar 2010 22:53:21 +1100 [thread overview]
Message-ID: <20100312225321.7581e324@notabene.brown> (raw)
In-Reply-To: <4B9A1A3A.6000209@anonymous.org.uk>
On Fri, 12 Mar 2010 10:40:58 +0000
John Robinson <john.robinson@anonymous.org.uk> wrote:
> On 12/03/2010 03:39, Patrick J. LoPresti wrote:
> > From reading the documentation and source code, I gather "mdadm
> > --grow" is not supported for RAID-0 devices.
> >
> > In my application, I am using md RAID-0 to stripe among several
> > (identical) hardware RAID-0 chassis. I would like to extend my setup
> > by adding another chassis, but apparently, I cannot (?).
>
> If I remember correctly, there were patches posted to this list recently
> to add support for reshaping RAID-0, and for migrating from RAID-0 to
> other RAID levels, but I don't remember whether they've made it in to
> the kernel/mdadm yet. I recommend a trawl through the last few months'
> archives.
I'll save you the effort. No they haven't.
The current plan is to support reshaping RAID-0 but converting the
RAID0 to a degraded RAID4, then reshaping it, then converting back.
But the code isn't ready yet.
NeilBrown
next prev parent reply other threads:[~2010-03-12 11:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-12 3:39 Resize RAID-0? Patrick J. LoPresti
2010-03-12 5:17 ` Michael Evans
2010-03-12 10:40 ` John Robinson
2010-03-12 11:53 ` Neil Brown [this message]
2010-03-12 11:36 ` Kristleifur Daðason
2010-03-12 17:03 ` Patrick J. LoPresti
2010-03-13 0:09 ` Patrick J. LoPresti
2010-03-13 0:50 ` Neil Brown
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