On Mon, 2009-11-23 at 15:25 -0600, Rodolfo Gonzalez Gonzalez wrote:
[...]
> has someone worked with DRBD (http://www.drbd.org) for HA of mail 
> storage? if so, does it have stability issues? comments and experiences 
> are thanked :)
(Now) 25K mailboxes (with ~92GB data) on DRBD-6 (now old - the thing was
built in early 2006) with ext{3,4} on it. As long as heartbeat/
pacemaker/openais/whatever assures that it is mounted on at most one
host, no problems whatsoever with the filesystem as such.
We don't run dovecot though (see the year above) but it shouldn't make
any difference.
Nowadays, DRBD-7+GFS or OCFS2 (and dovecot of course;-) are very
probably worth exploring for new clusters - see other mails.

	Bernd
-- 
Firmix Software GmbH                   http://www.firmix.at/
mobil: +43 664 4416156                 fax: +43 1 7890849-55
          Embedded Linux Development and Services


