On Feb 25, 2010, at 3:29 PM, Bradley Giesbrecht wrote: > On Feb 25, 2010, at 2:17 PM, Terry Barnum wrote: > >> I have postfix/dovecot/mysql installed using MacPorts on a quad-core 2.8GHz >> MacPro running Snow Leopard (10.6.2). I moved the base mail directory to a >> pair of 10k RPM Raptors that are mirrored (/Volumes/email/) and everything >> seems to be working fine on an unused domain with very little traffic. I >> used imapsync to pull everything from the current mailserver to this test >> server to play with. >> >> Our current mailserver's IMAP performance *really* suffers when an IMAP >> folder exceeds ~500MB or ~5k messages. I've become very tired of being the >> mailbox police trying to get my 20 users to delete email or divide into >> smaller mailboxes. >> >> Are there folks on the list running postfix/dovecot on similar Mac hardware >> that can share their experiences? Specifically, are there any limitations >> (file descriptors, other?) that can impact performance I should be aware of? >> How does dovecot on the Mac deal with >500GB maildirs? >> >> Is there a recommended tool for loading and testing the server? Postal? >> >> I have 20 IMAP users, with a total of ~37GB of mail currently. >> >> Thanks for any help and insight. > > Mac OS X 10.5.8 > dovecot 1.2.9 > Two mirrored 7200rpm sata drives. > dbox mailbox format
Thanks Brad. What hardware is this running on? Also, are you using the plain vanilla Apple RAID tool for mirroring or something else like SoftRAID? > My Inbox is 3.5G on disk and I'm happy with my performance. > Mail.app took 8 sec. to search my Inbox for "postfix" but caches mail. > Telnet imap login took 55 sec. for 'search text "postfix"'. > New mail notifications in Mail.app are near instant. I know your old box > fails here. > > > // Brad > Terry Barnum digital OutPost San Diego, CA http://www.dop.com 800/464-6434
