One 2-node vcs cluster, the heartbeat NICs are eth2 and eth3 on each node,
IF eth2 on node1 down, and eth3 on node2 down. Does this mean the 2 heartbeat Links both down, and the Cluster is in split brain situation?
Can LLT heartbeats communicate between NIC eth2 and NIC eth3?
Since the 《VCS Installation Guide》requires the 2 heartbeat Links in different networks.We should put eth2 of both nodes in the VLAN (VLAN1), and put eth3 of both nodes in another vlan (VLAN2). So in this situation heartbeats cannot communicate between eth2 and eth3.
But, in a production cluster system, we found out the 4 NICs--eth2 and eth3 of both nodes are all in a same VLAN. and this lead me to post the discussion thread to ask this question:
IF eth2 on node1 down, and eth3 on node2 down, What will happen to the cluster (which is in active-standby mode) ?
Thanks!