VMware for Cyrus?

[Sebastian Hagedorn]

Hi,

today I've learned that the Dell hardware our mail servers run on is out of 
support, because it's more than 5 years old (time flies ...). We were 
planning an upgrade from RHEL 3 to RHEL 5 anyway, but now we will try to 
accelerate that procedure somewhat. Our systems group is pushing VMware ESX 
on all levels. Previously VMware was not recommended for IO-heavy tasks, 
but apparently that's not the case anymore. Currently we have an ESX 3.5 
environment, but that will be upgraded to ESX 4 by the end of January.

My question is if there have been recent experiences running a Cyrus server 
with up to 2,500 concurrent IMAP connections under VMware ESX? I've found 
some posts in the archives, e.g.

<http://cyrusimap.web.cmu.edu/archive/message.php?mailbox=archive.info-cyrus&msg=45854>
<http://cyrusimap.web.cmu.edu/archive/message.php?mailbox=archive.info-cyrus&msg=48535>

but the former is relatively old, and the latter isn't really answered wrt 
VMware ...

FWIW, the current setup is a single Dell PowerEdge 6650 with 16 GB of RAM, 
coupled with a twin using Red Hat Cluster Suite.

Thanks, Sebastian
-- 
     .:.Sebastian Hagedorn - RZKR-R1 (Gebäude 52), Zimmer 18.:.
                 .:.Regionales Rechenzentrum (RRZK).:.
.:.Universität zu Köln / Cologne University - ✆ +49-221-478-5587.:.
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