linux-kernel - Re: clustered MD

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Message-ID: <20150610192236.GE333@redhat.com>
Date:	Wed, 10 Jun 2015 14:22:36 -0500
From:	David Teigland <teigland@...hat.com>
To:	Goldwyn Rodrigues <rgoldwyn@...e.com>
Cc:	linux-kernel@...r.kernel.org, NeilBrown <neilb@...e.de>
Subject: Re: clustered MD

On Wed, Jun 10, 2015 at 12:05:33PM -0500, David Teigland wrote:
> Separate bitmaps for each node sounds like a much better design than the
> cmirror design which used a single shared bitmap (I argued for using a
> single bitmap when cmirror was being designed.)

Sorry misspoke, I argued for one bitmap per node, like you're doing, so in
general I think you're starting off in a much better direction than I saw
before.  (I still doubt there's enough value in this to do it at all,
which is another reason I'm particularly interested to see some real world
success with this.)

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