[Dovecot] Best Cluster Storage

[Andre Nathan]

On Fri, 2011-01-14 at 03:48 +0000, Jonathan Tripathy wrote:
> ocfs2 seems to work quite well with lots of small files (typical of 
> maildir). I'm guessing that since ocfs2 reboot a system automatically, 
> it doesn't require any additional fencing?

We have a two-node active-active DRBD+OCFS2 Dovecot cluster. We're
currently unable to fully use it due to (what I believe is) an OCFS2
bug:

  http://oss.oracle.com/bugzilla/show_bug.cgi?id=1297

so while DRBD is in a dual-primary setup and the dovecot volumes are
mounted read/write on both cluster nodes, I had to remove one of them
from the load balancer, and thus only one of them handles connections
while the other is sitting there as a failover node.

HTH,
Andre