Kenneth Marshall wrote:
Your system is not a high-performance server I/O-wise. Your two disks can only
handle 200-300 fsync's to disk per second and postfix will always sync your
mail to disk before passing it on for local processing. You will need a
battery backed caching RAID controller or fast SSD drive for the
/var/spool/postfix directories to allow you to go faster. You could maybe
move the spool directory to a RAM or tmpfs file system as well. You lose
the safety net for messages if you have a power or other hardware problem.
For this kind of issue I generally split the laod across multiple
boxes. It's a lot easier to scale out than it is to keep throwing
hardware at the problem.
-- Corey / KB1JWQ
