On Thu, Oct 30, 2008 at 10:09:46AM -0700, Jay Chandler wrote:
> >I would create the system on EXT3 (RHES) and the following
> >partitions on rieserfs:
> >/var/spool/postfix AND the partition that will contain all mails in
> >MailDir format.
> >At the moment the server has ~100.000 mailboxes and more or less
> >120.000 mails stored per day (already filtered trought spam filters
> >from frontend servers).
>
> I had similar volumes at my last job admining mail for a University.
>
> I ended up keeping /var/spool/postfix on a NetApp (WaffleFS is SOLID,
> but hideously expensive) and mounting it from several boxes to
> distribute load-- if budget constraints are tight you might
> investigate ZFS depending on what your OS restrictions are.
Mounting user maildirs via NFS is supported, mounting the Postfix queue
directory via NFS is not a good idea, and is NOT supported. NFS does
NOT deliver the requisite unix filesystem semantics on which Postfix
relies. Mail will be lost under adverse (networking) conditions.
Keep the Postfix queue_directory local.
--
Viktor.
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