Re: Hot Reconfiguration of dmraid Arrays

Christof Klaiber wrote:
> Hi everybody,
> 
> I'm new to this list, so please excuse that I cannot put the reference
> correctly. I read a posting of Darrick J. Wong dated from 08 March 2006
> where he is talking about implementing a method of hot array
> reconfiguration support. Tihis includes adding spares to an array,
> replace failed drives, modify arrays, but I'm also interested in hot
> syncing the dmraid.

We [my team, anyway] implemented this for RAID1 mirrors on Adaptec
HostRAID arrays and sent the patches to this list on 30 August.  See
"[PATCH] 0/6: ASR reconfiguration" by Adam DiCarlo.  Unfortunately, the
only hardware that I have in my lab is Adaptec HostRAID and various
(newer) Adaptec DDF controllers.

To my knowledge Heinz hasn't put the patches into any release yet.

> Since I'm working on a project trying to find out about the
> possibilities of the dmraid aproach to RAID, I'd really be interested in
> what the status of this is upto now.

Cool!

--D

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