[TriLUG] Good reading for folks running postfix on an ext3 filesystem

[Jon Carnes]

I've advocated using ext2 for /var/spool (or simply /var if you don't
partition off the queues).  The article below addresses most of my
concerns - and shows you the proper way to tune your ext3 filesystem for
dealing with the behavior of a program like Postfix (or Sendmail).

http://www.stahl.bau.tu-bs.de/~hildeb/postfix/ext3.shtml

Of course there are some bugs in the stock RH kernels that might cause
you problems if you follow the "data=journal" advice.  So for now, it
still might be safest to keep those volumes as ext2.

For some other interesting Postfix tuning items, see:
http://www.stahl.bau.tu-bs.de/~hildeb/postfix/bottleneck.shtml

Jon Carnes