On Oct 29, 2008, at 1:29 AM, Simone Felici wrote:
I know, there is enough written on the net and on the mailinglist
too, but have found only old results, maybe the meanwhile something
is different, also I would ask you...
Which filesystem do you use on your mailserver?
I'm going to migrate a mailserver with EXT3 (and qmail) to a new
postfix mailserver (virtual domains on mysql, ...).
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.
Feel free to contact me off-list if you'd like me to go into more
detail about what I did to avoid NFS write locks, etc...
