From: Neil Brown <neilb@suse.de>
To: Robin Hill <robin@robinhill.me.uk>
Cc: linux-raid@vger.kernel.org
Subject: Re: Growing Linear RAID
Date: Thu, 10 Dec 2009 12:34:37 +1100 [thread overview]
Message-ID: <20091210123437.63cbc24b@notabene.brown> (raw)
In-Reply-To: <20091209153002.GA5586@cthulhu.home.robinhill.me.uk>
On Wed, 9 Dec 2009 15:30:02 +0000
Robin Hill <robin@robinhill.me.uk> wrote:
> On Wed Dec 09, 2009 at 08:31:54PM +0530, senthilkumar.muthukalai@wipro.com wrote:
>
> > Hi,
> >
> > I am trying to add a disk to a Linear Raid which was created with 2
> > disks.
> > We use linux-2.6.18 and mdadm-2.6.4.
> > I guess these support the above mentioned disk addition.
> >
> Why do you guess this? The manual page should tell you exactly what's
> supported, and even mdadm 3.1.1 makes no mention of support for growing
> linear RAID:
>
> Currently supported growth options including changing the active
> size of component devices and changing the number of active
> devices in RAID levels 1/4/5/6, changing the RAID level between
> 1, 5, and 6, changing the chunk size and layout for RAID5 and
> RAID5, as well as adding or removing a write-intent bitmap
>
>
Hmm... guess I should update that documentation, shouldn't I .....
Adding a device to a linear is supported since 2.6.18.
NeilBrown
next prev parent reply other threads:[~2009-12-10 1:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-09 15:01 Growing Linear RAID senthilkumar.muthukalai
2009-12-09 15:30 ` Robin Hill
2009-12-10 1:34 ` Neil Brown [this message]
2009-12-10 1:33 ` Neil Brown
2009-12-10 8:24 ` senthilkumar.muthukalai
2009-12-10 9:30 ` Neil Brown
2009-12-10 12:03 ` senthilkumar.muthukalai
2009-12-16 11:02 ` senthilkumar.muthukalai
2009-12-16 23:14 ` Neil Brown
2009-12-23 16:32 ` senthilkumar.muthukalai
2010-01-04 8:33 ` senthilkumar.muthukalai
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