Using Serviceguard Extension for RAC, 8th Edition, March 2009

Table of Contents
Printing History ................................................................................................................11
Preface..............................................................................................................................13
1 Introduction to Serviceguard Extension for RAC.......................................................15
What is a Serviceguard Extension for RAC Cluster? ...........................................................................15
Group Membership.........................................................................................................................16
Using Packages in a Cluster ............................................................................................................16
Serviceguard Extension for RAC Architecture.....................................................................................17
Group Membership Daemon..........................................................................................................17
Overview of SGeRAC and Cluster File System (CFS)/Cluster Volume Manager (CVM)....................17
Package Dependencies....................................................................................................................18
Storage Configuration Options.......................................................................................................18
About Veritas CFS and CVM from Symantec.................................................................................18
Overview of SGeRAC and Oracle 10g and 11gR1 RAC.......................................................................18
Overview of SGeRAC Cluster Interconnect Subnet Monitoring .........................................................19
How Cluster Interconnect Subnet Works........................................................................................19
Overview of SGeRAC and Oracle 9i RAC............................................................................................20
How Serviceguard Works with Oracle 9i RAC...............................................................................20
Group Membership.........................................................................................................................20
Configuring Packages for Oracle RAC Instances.................................................................................21
Configuring Packages for Oracle Listeners..........................................................................................21
Node Failure.........................................................................................................................................21
Larger Clusters .....................................................................................................................................23
Up to Four Nodes with SCSI Storage..............................................................................................23
Point to Point Connections to Storage Devices ...............................................................................24
Extended Distance Cluster Using Serviceguard Extension for RAC...................................................25
GMS Authorization...............................................................................................................................25
2 Serviceguard Configuration for Oracle 10g or 11gR1 RAC...................................27
Interface Areas......................................................................................................................................27
Group Membership API (NMAPI2)................................................................................................27
SGeRAC Detection...........................................................................................................................27
Cluster Timeouts.............................................................................................................................27
Serviceguard Cluster Timeout...................................................................................................27
CSS Timeout...............................................................................................................................28
RAC IMR Timeout......................................................................................................................28
Oracle Cluster Software...................................................................................................................28
Automated Oracle Cluster Software Startup and Shutdown....................................................28
Monitoring..................................................................................................................................28
Allowed Characters for Oracle 10g/11gR1 RAC Cluster Names...............................................28
Shared Storage.................................................................................................................................28
Multipathing ..............................................................................................................................29
OCR and Vote Device.................................................................................................................29
Mirroring and Resilvering..........................................................................................................29
Shared Storage Activation..........................................................................................................29
Listener............................................................................................................................................29
Automated Startup and Shutdown............................................................................................29
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