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

Table of Contents
Printing History ...........................................................................................................................15
Preface.......................................................................................................................................17
1 Introduction to Serviceguard Extension for RAC...........................................................................21
What is a Serviceguard Extension for RAC Cluster? .........................................................21
Group Membership.......................................................................................................22
Using Packages in a Cluster .........................................................................................23
Serviceguard Extension for RAC Architecture...................................................................24
Group Membership Daemon........................................................................................24
Overview of SGeRAC and Cluster File System (CFS)/Cluster Volume Manager
(CVM).................................................................................................................................25
Package Dependencies..................................................................................................25
Storage Configuration Options.....................................................................................25
About Veritas CFS and CVM from Symantec...............................................................25
Overview of SGeRAC and Oracle 10g RAC.......................................................................26
Overview of SGeRAC Cluster Interconnect Subnet Monitoring .......................................26
How Cluster Interconnect Subnet Works......................................................................27
Overview of SGeRAC and Oracle 9i RAC..........................................................................28
How Serviceguard Works with Oracle 9i RAC.............................................................29
Group Membership.......................................................................................................29
Configuring Packages for Oracle RAC Instances...............................................................29
Configuring Packages for Oracle Listeners........................................................................29
Node Failure.......................................................................................................................30
Larger Clusters ...................................................................................................................31
Up to Four Nodes with SCSI Storage............................................................................31
Point to Point Connections to Storage Devices ............................................................32
Extended Distance Cluster Using Serviceguard Extension for RAC.................................33
2 Serviceguard Configuration for Oracle 10g RAC.........................................................................35
Interface Areas....................................................................................................................35
Group Membership API (NMAPI2)..............................................................................35
SGeRAC Detection........................................................................................................35
Cluster Timeouts...........................................................................................................35
Serviceguard Cluster Timeout.................................................................................36
CSS Timeout.............................................................................................................36
RAC IMR Timeout...................................................................................................36
Oracle Cluster Software.................................................................................................36
Automated Oracle Cluster Software Startup and Shutdown..................................37
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