From mboxrd@z Thu Jan  1 00:00:00 1970
From: Neil Brown <neilb@suse.de>
Subject: Re: Requesting replace mode for changing a disk
Date: Wed, 13 May 2009 20:51:34 +1000
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In-Reply-To: message from SandeepKsinha on Wednesday May 13
Sender: linux-raid-owner@vger.kernel.org
To: SandeepKsinha <sandeepksinha@gmail.com>
Cc: lrhorer@satx.rr.com, Linux RAID <linux-raid@vger.kernel.org>
List-Id: linux-raid.ids

On Wednesday May 13, sandeepksinha@gmail.com wrote:
> 
> Thanks but I am still confused. Here is what I see on the console.
> 
> 
> [10:55:16 sinhas]$ sudo mdadm -C /dev/md0 --level 1 -n 2 /dev/sda5 missing
> mdadm: /dev/sda5 appears to contain an ext2fs file system
>     size=19535008K  mtime=Sun Apr  5 21:34:00 2009
> mdadm: /dev/sda5 appears to be part of a raid array:
>     level=raid1 devices=2 ctime=Wed May 13 10:06:33 2009
> Continue creating array? y
> mdadm: RUN_ARRAY failed: Invalid argument
> mdadm: stopped /dev/md0

Odd.  Look for explanatory message in 'dmesg'.

NeilBrown