Using Serviceguard Extension for RAC, 5th Edition, June 2007

Serviceguard Configuration for Oracle 10g RAC
Interface Areas
Chapter 2 45
single point of failure, the CSS heartbeat network should be configured
with redundant physical networks under SGeRAC monitoring. Since
SGeRAC does not support heartbeat over Hyperfabric (HF) networks,
the preferred configuration is for CSS and Serviceguard to share the
same cluster interconnect.
RAC Cluster Interconnect
Each set of RAC instances maintains peer communications on a single
connection and may not support multiple connections on HP-UX with
SGeRAC. To protect against a network single point of failure, the RAC
cluster interconnect should be configured with redundant networks
under Serviceguard monitoring and for Serviceguard to take action
(either a local failover or an instance package shutdown, or both) if the
RAC cluster interconnect fails. Serviceguard does not monitor
Hyperfabric networks directly (integration of Serviceguard and HF/EMS
monitor is supported).
Public Client Access
When the client connection endpoint (virtual or floating IP address) is
configured using Serviceguard packages, Serviceguard provides
monitoring, local failover, and remote failover capabilities. When
Serviceguard packages are not used, Serviceguard does not provide
monitor or failover support.