From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sean Puttergill <puttergi@yahoo.ca>
Subject: Hot add not supported by version 1.x superblocks?
Date: Wed, 31 Jan 2007 10:58:23 -0800 (PST)
Message-ID: <218044.89383.qm@web34405.mail.mud.yahoo.com>
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To: neilb@suse.de
Cc: linux-raid@vger.kernel.org
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Hello Neil.

I have a RAID1 built using v1.2 superblocks.  I seem to not be able to hot add a spare drive to this array.
I get the error message:

"HOT_ADD may only be used with version-0 superblocks"

Does this really mean that hot add is not supported for arrays built with v1.x superblocks?
If so this seems like a big regression in functionality.  In this case, are there technical reasons why v1.x cannot support hot add?

I am using a stock 2.6.18 kernel with mdadm v2.5.4


Thanks,
Sean




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