[Linux-cluster] Heartbeats using CMAN

Amjad Syed amjadcsu at gmail.com
Thu May 29 11:23:11 UTC 2014


We are trying to setup a 2 node RHEL 6.5 oracle HA cluster in
Active/passive mode.

Each node has 2 nics, one connected to outside  world and other private
VLAN for heartbeat connections.

The network admin here is claiming that if the external switch is down or
cable is unplugged, how can the heartbeat function ,cause the private VLAN
still sees the other node up , but it is actually down and not accessible
to network.

Apologies if this naive question, but i am not a networking guy and just
trying to figure out how to with this.

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