From: Sebastian Hagedorn (no email)
Date: Fri Feb 03 2006 - 04:39:03 EST
--On 2. Februar 2006 22:36:25 +0100 Kjetil Torgrim Homme
<> wrote:
> we have an old installation, so we're using LVS (2 directors in
> active/active) in front of Perdition (2 frontends) in front of 16 Cyrus
> instances running on three nodes sharing a SAN. the cluster software
> handling the three nodes is HP ServiceGuard.
Wow, that's a lot of nodes. I wonder if and why so many are necessary in
your case? We have a HA cluster using Red Hat Enterprise Linux 3 and its
Cluster Suite. There are just two nodes and only one is active at a time
(the other handles other jobs, though). We also use LVS but only for SMTP
and virus scanning (running on four nodes). We have roughly 40,000 accounts
and this one server handles them all quite well. Usually I/O is the
limiting factor for Cyrus, and that's where our SAN infrastructure is
invaluable.
Cheers, Sebastian Hagedorn
--
.:.Sebastian Hagedorn - RZKR-R1 (Gebäude 52), Zimmer 18.:.
Zentrum für angewandte Informatik - Universitätsweiter Service RRZK
.:.Universität zu Köln / Cologne University - Tel. +49-221-478-5587.:.
.:.:.:.Skype: shagedorn.:.:.:.
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