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From: Robin Hill <robin@robinhill.me.uk>
To: linux-raid@vger.kernel.org
Subject: Re: Growing Linear RAID
Date: Wed, 9 Dec 2009 15:30:02 +0000	[thread overview]
Message-ID: <20091209153002.GA5586@cthulhu.home.robinhill.me.uk> (raw)
In-Reply-To: <8338BD137FF1B64EB341218BD702985E02C8C03B@BLR-EC-MBX03.wipro.com>

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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

Cheers,
    Robin
-- 
     ___        
    ( ' }     |       Robin Hill        <robin@robinhill.me.uk> |
   / / )      | Little Jim says ....                            |
  // !!       |      "He fallen in de water !!"                 |

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  reply	other threads:[~2009-12-09 15:30 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 [this message]
2009-12-10  1:34   ` Neil Brown
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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