linux-kernel - Re: Raid 10 question/problem [ot]

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Message-ID: <45BCDFAE.5090602@tmr.com>
Date:	Sun, 28 Jan 2007 12:38:54 -0500
From:	Bill Davidsen <davidsen@....com>
To:	Marc Perkel <mperkel@...oo.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Raid 10 question/problem [ot]

Marc Perkel wrote:
> I'm a little stumped trying to set up raid 10. I set
> it up and it worked but after a reboot it forgets my
> raid setup.
> 
> Created 2 raid 1 arrays in md0 and md1 and that works
> and survives a reboot.
> 
> However - I created a raid 0 on /dev/md2 made up of
> /dev/md0 and /dev/md1 and it worked but it forgets it
> after I reboot. The device /dev/md2 fails to survive a
> reboot.
> 
> Created the /etc/mdadm.conf file but that doesn't seem
> to have made a difference.
> 
> What am I missing? Thanks in advance.

RAID-10 is not the same as RAID 0+1.

There's a linux-raid mailing list, the archives may assist in 
understanding this. Either use RAID-10 or add md2 to the mdadm.conf to 
get it started at boot. I suggest using RAID-10.

-- 
Bill Davidsen <davidsen@....com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot
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