Re: Safest way to renumber RAID-5 devices

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On Saturday June 28, pilchman@attbi.com wrote:
> Hi all!
> 
> I have several RAID-5 devices that I would like to renumber
> (incrementing each minor number by 1).
> 
> Is it possible to do this without re-creating them?  I'd like to avoid
> unnecessary re-syncs as well as the possibility of screwing up.
> 

mdadm -A --update=superminor /dev/mdNEWNUMBER  /dev/sd...

should work with mdadm 1.2.0.

Obviously you have to stop the array first as "mdadm -A" starts a
stopped array.

Check the manpage to make sure I haven't mispelled somthing.

NeilBrown
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