Stan Hoeppner wrote:
ahmad riza h nst put forth on 11/8/2010 3:05 AM:
our hardware is hp dl180 g6 (a xeon quad core + raid 1 + 4G ram)
Ok, that answers one of my previous questions. This system isn't nearly
strong enough for thousands of users.
IBTD.
I had PII/450 with ~768M of RAM, and a single 40G IDE hard drive
handling about 250+ accounts (POP+IMAP+webmail, SSL and non) plus
passthrough outbound mail filtering for the other ~1300 accounts on the
main Novell mail system at peak.
Running sendmail.
(Admittedly, by that point, it *was* pretty much at its limit... and
that *was* with SpamAssassin 2.6 - it took me a while to shuffle around
the available hardware enough to be able to upgrade to 3.0 due to the
memory demands.)
Performance was by no means spectacular at peak, but after tuning and
fiddling for a while as new accounts got added and performance problems
showed up, it worked well enough that there was rarely much delay on
inbound mail processing.
That said... Yeah, upgrade the hardware now - I'd even say go for more
than 8G of RAM if you can stuff it in, because if you're running a
memory hog like SpamAssassin on the same machine as your core mail
daemons and webmail, you'll need it sooner or later - and going into
swap when running something like SA is a good way to cause *everything*
to slow to a halt.
-kgd
