On Wed, Dec 28, 2005 at 11:12:53AM -0500, Derek Atkins wrote: > Pierre Ancelot <[EMAIL PROTECTED]> writes: > > > Ok, then, what i am looking for is a distributed filesystem (free of > > charge and license (GNU or so)) replication over all nodes since i am > > preparing a virtual mail server using keepalived and maildir system. The > > thing is users use imap and imaps in a load balanced environnement so > > every node should access the same filesystem to r/w the changes, the > > whole thing beeing distributed over all nodes and failover.... > > > > Anyone could please orient me ? > > > > Thanks :) > > You don't want AFS for an imap or maildir backend. You should just > use a RAID system, or perhaps DRBD (www.drbd.org) if you really want > network redundancy. But if it were me I'd just use RAID mirroring > on directly-connected drives on the imap server.
I've been running courier-mta and courier-imap on AFS for the past 3 years or so. Performance will suck a LOT if the AFS caches aren't big enough. (my current imap server has an 8GB cache, and it's pretty full) The advantage of AFS over a single system is you can have as many incoming MTA machines, and imap servers as you want. I'd also make the comment that while AFS lacks whiz-bang R/W failover support, it's been used in production environments for a very long time. I think you'll have a hard time finding anyone that's run anything fancy like DRDB or Lustre for more than a year without some heavy maintenance and upkeep. _______________________________________________ OpenAFS-info mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-info
