Using Serviceguard Extension for RAC, 6th Edition, April 2008

of the CSS-HB subnet on a node will bring down the instance of the multi-node package
and the node where the subnet has failed. A failure of CSS-HB subnet on all nodes will
result in the multi-node package failing on the nodes one by one (resulting in that node
going down), and one instance of the multi-node package and node will remain
providing services to the clients.
NOTE: Do not configure CLUSTER_INTERCONNECT_SUBNET in the RAC Instance
package since the RAC-IC network is the same as CSS-HB network.
Use a separate package to monitor the CSS-HB subnet alone and have Oracle
Clusterware multi-node package depend on the package monitoring the CSS-HB subnet.
NODE_FAIL_FAST_ENABLED will be set to NO for Oracle Clusterware package and
will be set to YESfor the package monitoring CSS-HB subnet (Oracle Cluster Interconnect
Subnet package).
The following is an example of the relevant package configuration parameters:
Oracle Clusterware Package:PACKAGE_NAME CRS_PACKAGEPACKAGE_TYPE
MULTI_NODE
LOCAL_LAN_FAILOVER_ALLOWED YESNODE_FAIL_FAST_ENABLED NODEPENDENCY_NAME
CI-PACKAGEDEPENDENCY_CONDITION CI-PACKAGE=UPDEPENDENCY_LOCATION
SAME_NODE
Oracle Cluster Interconnect Subnet Package: Package to monitor the CSS-HB subnetPACKAGE_NAME
CI-PACKAGEPACKAGE_TYPE
MULTI_NODELOCAL_LAN_FAILOVER_ALLOWED YESNODE_FAIL_FAST_ENABLED
YESCLUSTER_INTERCONNECT_SUBNET 192.168.1.0
NOTE: For information on guidelines to change certain Oracle Clusterware and
Serviceguard cluster configuration parameters, see “Guidelines for Changing Cluster
Parameters” (page 53)
Guidelines for Changing Cluster Parameters
This section describes the guidelines for changing the default values of certain Oracle
clusterware and Serviceguard cluster configuration parameters.
The guidelines vary depending on whether clustering interconnect subnet monitoring
is used to monitor the CSS HB subnet or not.
When Cluster Interconnect Subnet Monitoring is used
The Cluster Interconnect Subnet Monitoring feature is used:
Cluster Communication Network Monitoring 53