[Dovecot] Best Cluster Storage

[Eric Rostetter]

Quoting Henrique Fernandes <sf.rique at gmail.com>:

> for drbd you only need a heartbeat i guess.

Fencing is not needed for drbd, though recommended.

> But to use gfs2 you need fence device, ocfs2 does not require once, like the
> ocfs2 driver takes care, it reboots if it thinks it is desyncronized

gfs2 technically requires fencing, since it technically requires a cluster,
and red hat clustering requires fencing.  Some people "get around this"
by using "manual" fencing, though this is "not recommended for production"
as it could result in a machine staying down until manual intervention,
which usually conflicts with the "uptime" desire for a cluster...  But
that is up to the implementor to decide on...

> []'sf.rique


-- 
Eric Rostetter
The Department of Physics
The University of Texas at Austin

Go Longhorns!