From mboxrd@z Thu Jan  1 00:00:00 1970
From: Patrick Ringl <patrick.ringl@gmx.de>
Subject: Re: 2.6.29 - raid10 issue - spares do not get synched automatically
Date: Sat, 28 Mar 2009 23:41:06 +0100
Message-ID: <49CEA782.7070704@gmx.de>
References: <49CE19F0.5040809@gmx.de> <b5623e48a92119937c6527b7f9564ed4.squirrel@neil.brown.name>
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To: NeilBrown <neilb@suse.de>
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Hello Neil,

NeilBrown wrote:
>
> Linux RAID10 with
>
>      Raid Level : raid10
>    Raid Devices : 4
>          Layout : near=2, far=1
>
> Will layout data like this:
>
>    disk0   disk1   disk2   disk3
>      A       A       B       B
>      C       C       D       D
>      E       E       F       F
>
> You have removed disk0 and disk1, so A,C,E don't exist
> any more.  You should get IO errors when you try to access
> that data.
> There is nothing that can be recovered, so the drives remain
> as spares.
>
> NeilBron
You're right - sorry. I better should read my own logfiles tho. Somehow 
removing a single disk and readding it mixed up with the raid device 
numbering - which I didnt notice at first.



regards,
Patrick