[Pacemaker] Can Corosync bind to two networks

[Arnold Krille]

On Friday 11 May 2012 17:49:38 Steve Davidson wrote:
> We want to run the Corosync heartbeat on the private net and, as a
> backup heartbeat, allow Corosync heartbeat on our "public" net as well.
> 
> Thus in /etc/corosync/corosync.conf we need something like:
> 
> bindaddr_primary: 192.168.57.0
> bindaddr_secondary: 125.125.125.0
> 
> Our thinking is: if the private net connection fails but everything else
> is okay then we don't need to disrupt services since the private net
> failure won't affect our users.
> 
> Is there any way to do this?  Otherwise we need two interfaces connected
> to separate switches just for an (HA) heartbeat.  We don't want to
> recover services when everything is working except the private net or
> interface.

You simply want to define two communication rings on all the participating 
nodes. When one ring fails (for one node or for all) there is still the second 
ring.

Works like charm.

Have fun,

Arnold
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