Veritas Storage Foundation 5.0 for Oracle RAC Configuration Guide Extracts for HP Serviceguard Storage Management Suite, Second Edition, May 2008

Chapter 1

1 Introducing Serviceguard Extension

for RAC

This chapter contains the following topics:

• “About Serviceguard Extension for RAC” on page 10

• “How Serviceguard Extension for RAC Works (High-Level Perspective)” on page 11

• “Component Products and Processes of SG SMS Serviceguard Cluster File System

for RAC” on page 13

• “Communication Infrastructure” on page 14

• “Cluster Interconnect Communication Channel” on page 16

• “Low-level Communication: Port Relationship Between GAB and Processes” on

page 18

• “Cluster Volume Manager” on page 19

• “Cluster File System” on page 21

• “Oracle Disk Manager” on page 22

• “Additional Features of Serviceguard Extension for RAC” on page 23