Managing HP Serviceguard for Linux Ninth Edition, April 2009

Performing Maintenance Using Partial-Startup Maintenance Mode..........................237
Excluding Modules................................................................................................238
Characteristics of a Package Running in Partial-Startup Maintenance Mode............239
Dependency Rules for a Package in Partial-Startup Maintenance Mode...................240
Reconfiguring a Cluster....................................................................................................240
Previewing the Effect of Cluster Changes...................................................................241
What You Can Preview..........................................................................................242
Using Preview mode for Commands and in Serviceguard Manager....................242
Using cmeval..........................................................................................................243
Reconfiguring a Halted Cluster ..................................................................................245
Reconfiguring a Running Cluster................................................................................245
Adding Nodes to the Configuration While the Cluster is Running .....................245
Removing Nodes from the Cluster while the Cluster Is Running ........................246
Changing the Cluster Networking Configuration while the Cluster Is Running.......247
What You Can Do...................................................................................................247
What You Must Keep in Mind...............................................................................248
Example: Adding a Heartbeat LAN.......................................................................249
Example: Deleting a Subnet Used by a Package....................................................250
Updating the Cluster Lock LUN Configuration Online.............................................251
Changing MAX_CONFIGURED_PACKAGES.............................................................251
Configuring a Legacy Package.........................................................................................252
Creating the Legacy Package Configuration ..............................................................252
Using Serviceguard Manager to Configure a Package .........................................252
Using Serviceguard Commands to Configure a Package .....................................252
Configuring a Package in Stages......................................................................253
Editing the Package Configuration File............................................................253
Creating the Package Control Script...........................................................................255
Customizing the Package Control Script ..............................................................256
Adding Customer Defined Functions to the Package Control Script ...................257
Adding Serviceguard Commands in Customer Defined Functions ...............257
Support for Additional Products...........................................................................258
Verifying the Package Configuration..........................................................................258
Distributing the Configuration....................................................................................258
Distributing the Configuration And Control Script with Serviceguard
Manager.................................................................................................................259
Copying Package Control Scripts with Linux commands.....................................259
Distributing the Binary Cluster Configuration File with Linux Commands ........259
Configuring Cross-Subnet Failover.............................................................................259
Configuring node_name........................................................................................260
Configuring monitored_subnet_access..................................................................260
Creating Subnet-Specific Package Control Scripts.................................................260
Control-script entries for nodeA and nodeB....................................................261
Control-script entries for nodeC and nodeD....................................................261
Reconfiguring a Package...................................................................................................261
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