[ClusterLabs] two node cluster: do the nodes have to be in the same subnet ?

Kai Dupke kdupke at suse.com
Tue Apr 28 09:53:54 EDT 2015

On 04/28/2015 01:04 PM, Lentes, Bernd wrote:
> i want to create a two node cluster. Does the nodes have to reside in the same subnet ?

If the two nodes can reach each other then for the nodes it's fine to
use unicast instead of multicast.

However, a bigger issue could be the service on top of the system,
depending on the network (routing) layout.

If you do so because of some redundancy thinking, keep in mind that the
shared storage has to be redundant,too (in which case the SBD should be
redundant, too).

Kai Dupke
Senior Product Manager
Server Product Line
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