Managing Serviceguard 14th Edition, June 2007

Understanding Serviceguard Hardware Configurations
Redundant Network Components
Chapter 240
NOTE You should verify that network traffic is not too high on the heartbeat/
data LAN. If traffic is too high, this LAN might not perform adequately
in transmitting heartbeats if the dedicated heartbeat LAN fails.
Replacing Failed Network Cards
Depending on the system configuration, it is possible to replace failed
network cards while the cluster is running. The process is described
under “Replacement of LAN Cards” in the chapter “Troubleshooting Your
Cluster.” With some restrictions, you can also add and delete LAN
interfaces to and from the cluster configuration while the cluster is
running; see “Changing the Cluster Networking Configuration while the
Cluster Is Running” on page 353.