We have about 11000 users on our mailserver and the server seems to be
running out of resources ie. it seems to slow down when a lot of users
(ie. 500-1000 imapd process are running in the system) are simultaneously
reading their mail.
The current system consists of:
- Sendmail 8.11.6
- Cyrus IMAP 1.6.25 and SASL 1.5.24
- Sun Ultra Enterprise 450 with 4 cpus (400MHz), 2GB RAM and cyrus mail
directories are on software raid filesystem (stripe+mirror and translog).
What would you do to improve server's performance?
We are considering following solutions:
- moving cyrus mail files to hardware raid filesystem
- Upgrade to Cyrus IMAP 2.0.16 or newer
- Cyrus Murder of imap cluster
- multiple Cyrus IMAP servers
If multiple Cyrus IMAP servers is to be used then Cyrus Murder would seem
like an ideal solutuon as users would only need to know the address of
only one IMAP server. The problem seems to be that there seems to be very
little of documentation about Cyrus Murder installation and/or management.
Does anyone have any experience about installing and/or using Cyrus
Murder?
-- Leena Heino ([EMAIL PROTECTED])
