Managing Serviceguard Seventeenth Edition, First Reprint December 2009

LVM Planning ..................................................................................................................131
LVM Worksheet ..........................................................................................................132
CVM and VxVM Planning ...............................................................................................133
CVM and VxVM Worksheet .......................................................................................134
Cluster Configuration Planning .......................................................................................134
Heartbeat Subnet and Cluster Re-formation Time .....................................................134
About Hostname Address Families: IPv4-Only, IPv6-Only, and Mixed Mode..........135
What Is IPv4–only Mode?......................................................................................136
What Is IPv6-Only Mode?......................................................................................136
Rules and Restrictions for IPv6-Only Mode.....................................................136
Recommendations for IPv6-Only Mode...........................................................138
What Is Mixed Mode?............................................................................................138
Rules and Restrictions for Mixed Mode...........................................................138
Cluster Configuration Parameters ..............................................................................139
Cluster Configuration: Next Step................................................................................162
Package Configuration Planning .....................................................................................162
Logical Volume and File System Planning .................................................................163
Planning Veritas Cluster Volume Manager (CVM) and Cluster File System (CFS)....164
CVM 4.1 and later without CFS..............................................................................164
CVM 4.1 and later with CFS ..................................................................................164
Planning for Expansion...............................................................................................166
Choosing Switching and Failover Behavior................................................................166
Parameters for Configuring EMS Resources...............................................................167
About Package Dependencies.....................................................................................168
Simple Dependencies.............................................................................................168
Rules for Simple Dependencies........................................................................169
Guidelines for Simple Dependencies................................................................172
Extended Dependencies.........................................................................................173
Rules for Exclusionary Dependencies..............................................................174
Rules for different_node and any_node Dependencies...................................175
What Happens when a Package Fails....................................................................175
For More Information.............................................................................................176
About Package Weights...............................................................................................176
Package Weights and Node Capacities..................................................................177
Configuring Weights and Capacities.....................................................................177
Simple Method.......................................................................................................177
Example 1..........................................................................................................177
Points to Keep in Mind.....................................................................................179
Comprehensive Method.........................................................................................179
Defining Capacities...........................................................................................179
Defining Weights..............................................................................................181
Rules and Guidelines.............................................................................................184
For More Information.............................................................................................184
How Package Weights Interact with Package Priorities and Dependencies.........185
Table of Contents 7