From mboxrd@z Thu Jan  1 00:00:00 1970
From: John Robinson <john.robinson@anonymous.org.uk>
Subject: Re: Guidance on how to best assemble new root drive?
Date: Sat, 01 Jan 2011 20:27:40 +0000
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To: Mark Knecht <markknecht@gmail.com>
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On 01/01/2011 19:47, Mark Knecht wrote:
[...]
> Is there a way to rename the array in the SuperBlock?

mdadm --update=homehost
mdadm --update=name

> Should I bother? I may go back and forth between these two Gentoo
> installations for a while and want the RAID to be available in both,
> at least until I delete the old RAID1 system to recapture the disk
> space.

I wouldn't have changed hostname, but if your new root is on the RAID-6 
yes I'd change its homehost to suit its hostname. You will then have to 
tell the old RAID-1 to start the array using the new homehost.

Cheers,

John.