backup mail server

[Roland Pope]

----- Original Message -----
From: "Lee" <lee_hoffman at brown.edu>
> We use drbd (http://www.complang.tuwien.ac.at/reisner/drbd/) and
> linux-ha's (http://www.linux-ha.org/) heartbeat to create two-box
> mailstores (one active, one hotspare, continuously in-sync). Works
> beautifully.
I am in the process of testing out this same setup at present under Linux
and I have a couple of questions.

1) How large is your Cyrus installation (# of accounts,  # of simultaneous
connections and IMAP spool size)
2) What DRBD protocol are you using A,B or C and over what file system
(EXT2, LVM,& EXT3 ???)
3) Are you using block replicated disks for both your IMAP spool & your IMAP
directory (Mailboxes DB etc)?

Thanks
Roland Pope