> I read that XFS is a good choice, but is not
> too reliable...
Are you using Maildir or MBOX?
In any case: XFS would be my last choice:
XFS is nice if you are working with large files (> 2GB), but
for E-Mail i'd stick with ext3 (or maybe even reiser3)
as it works very well with small files.
> We have tome timeouts reports on pop3 during heavy load
> periods. Using imap/pop3 with maildir with 7,000 users using mostly pop3.
It's hard to tweak something without knowing the problem.
Run top / iostat / vmstat to get an idea why your system becomes slow:
- CPU ?
- Disk-IO ?
Regards,
