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

2 Serviceguard Configuration for Oracle 10g RAC
This chapter shows the additional planning and configuration that is needed to use
Oracle Real Application Clusters 10g with Serviceguard. The following topics are
presented:
• “Interface Areas”
• “Oracle Cluster Software”
• “Planning Storage for Oracle Cluster Software”
• “Planning Storage for Oracle 10g RAC”
• “Installing Serviceguard Extension for RAC ”
• “Installing Oracle Real Application Clusters”
• “Cluster Communication Network Monitoring”
• “Creating a Storage Infrastructure with LVM”
• “Creating a Storage Infrastructure with CFS”
• “Creating a Storage Infrastructure with CVM”
• “Installing Oracle 10g Cluster Software”
Interface Areas
This section documents interface areas where there is expected interaction between
SGeRAC and Oracle 10g Cluster Software and RAC.
Group Membership API (NMAPI2)
The NMAPI2 client links with the SGeRAC provided NMAPI2 library for group
membership service. The group membership is layered on top of the SGeRAC cluster
membership where all the primary group members are processes within cluster nodes.
Cluster membership has node names and group membership has process names. Upon
a SGeRAC group membership change, SGeRAC delivers the new group membership
to other members of the same group.
SGeRAC Detection
When Oracle 10g Cluster Software is installed on a SGeRAC cluster, Oracle Cluster
Software detects the existence of SGeRAC and CSS uses SGeRAC group membership.
Cluster Timeouts
SGeRAC uses heartbeat timeouts to determine when any SGeRAC cluster member has
failed or when any cluster member is unable to communicate with the other cluster
members. CSS uses a similar mechanism for CSS memberships. Each RAC instance
group membership also has a timeout mechanism, which triggers Instance Membership
Recovery (IMR).
Interface Areas 35