Managing HP Serviceguard for Linux Ninth Edition, April 2009

Power Supply Configuration Worksheet .....................................................................98
Cluster Lock Planning........................................................................................................98
Cluster Lock Requirements...........................................................................................98
Planning for Expansion.................................................................................................99
Using a Quorum Server.................................................................................................99
Quorum Server Worksheet .....................................................................................99
Volume Manager Planning ................................................................................................99
Volume Groups and Physical Volume Worksheet......................................................100
Cluster Configuration Planning .......................................................................................100
Cluster Configuration Parameters ..............................................................................100
Cluster Configuration: Next Step ...............................................................................118
Package Configuration Planning .....................................................................................118
Logical Volume and File System Planning .................................................................118
Planning for Expansion...............................................................................................120
Choosing Switching and Failover Behavior................................................................120
About Package Dependencies.....................................................................................121
Simple Dependencies.............................................................................................121
Rules for Simple Dependencies.............................................................................122
Dragging Rules for Simple Dependencies........................................................123
Guidelines for Simple Dependencies.....................................................................125
Extended Dependencies.........................................................................................126
Rules for Exclusionary Dependencies..............................................................127
Rules for different_node and any_node Dependencies...................................128
About Package Weights...............................................................................................128
Package Weights and Node Capacities..................................................................128
Configuring Weights and Capacities.....................................................................129
Simple Method.......................................................................................................129
Example 1..........................................................................................................129
Points to Keep in Mind.....................................................................................130
Comprehensive Method.........................................................................................131
Defining Capacities...........................................................................................131
Defining Weights..............................................................................................133
Rules and Guidelines.............................................................................................136
For More Information.............................................................................................136
How Package Weights Interact with Package Priorities and Dependencies.........137
Example 1..........................................................................................................137
Example 2..........................................................................................................137
About External Scripts.................................................................................................137
Using Serviceguard Commands in an External Script..........................................140
Determining Why a Package Has Shut Down.......................................................141
last_halt_failed Flag..........................................................................................141
About Cross-Subnet Failover......................................................................................141
Implications for Application Deployment.............................................................142
Configuring a Package to Fail Over across Subnets: Example..............................143
6 Table of Contents