HP Serviceguard manual Building an HA Cluster Configuration 158

Parameters for Configuring EMS Resources	136
About Package Dependencies	137
Simple Dependencies	137
Rules for Simple Dependencies	137
Guidelines for Simple Dependencies	141
Extended Dependencies	141
Rules for Exclusionary Dependencies	142
Rules for different_node and any_node Dependencies	143
What Happens when a Package Fails	143
For More Information	144
About Package Weights	144
Package Weights and Node Capacities	144
Configuring Weights and Capacities	144
Simple Method	145
Example 1	145
Points to Keep in Mind	146
Comprehensive Method	146
Defining Capacities	146
Defining Weights	148
Rules and Guidelines	150
For More Information	150
How Package Weights Interact with Package Priorities and Dependencies	150
Example 1	151
Example 2	151
About External Scripts	151
Using Serviceguard Commands in an External Script	153
Determining Why a Package Has Shut Down	154
last_halt_failed	154
About Cross-Subnet Failover	154
Implications for Application Deployment	155
Configuring a Package to Fail Over across Subnets: Example	155
Configuring node_name	156
Configuring monitored_subnet_access	156
Configuring ip_subnet_node	156
Configuring a Package: Next Steps	156
Planning for Changes in Cluster Size	157
5 Building an HA Cluster Configuration	158
Preparing Your Systems	158
Installing and Updating Serviceguard	158
Where Serviceguard Files Are Kept	158
Creating Cluster-wide Device Special Files (cDSFs)	159
Before You Start	159
Creating cDSFs for a Group of Nodes	159
Adding a Node to a cDSF Group	161
Removing a Node from a cDSF Group	161
Displaying the cDSF Configuration	161
Migrating Existing LVM Cluster Storage to cDSFs	161
Using Easy Deployment	161
Before You Start	161
Using Easy Deployment Commands to Configure the Cluster	162
Configuring Root-Level Access	166
Allowing Root Access to an Unconfigured Node	166
Ensuring that the Root User on Another Node Is Recognized	167
About identd	167

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