Managing Serviceguard Eighteenth Edition, September 2010

Reconfiguring a Running Cluster................................................................................365
Adding Nodes to the Cluster While the Cluster is Running ................................365
Removing Nodes from the Cluster while the Cluster Is Running ........................366
Changing the Cluster Networking Configuration while the Cluster Is
Running..................................................................................................................367
What You Can Do.............................................................................................367
What You Must Keep in Mind..........................................................................368
Example: Adding a Heartbeat LAN.................................................................369
Example: Deleting a Subnet Used by a Package...............................................371
Removing a LAN or VLAN Interface from a Node.........................................372
Changing the LVM Configuration while the Cluster is Running .........................372
Changing the VxVM or CVM Storage Configuration ...........................................373
Changing MAX_CONFIGURED_PACKAGES.............................................................374
Configuring a Legacy Package.........................................................................................375
Creating the Legacy Package Configuration ..............................................................375
Configuring a Package in Stages............................................................................376
Editing the Package Configuration File.................................................................376
Creating the Package Control Script...........................................................................378
Customizing the Package Control Script ..............................................................379
Adding Customer Defined Functions to the Package Control Script ...................380
Adding Serviceguard Commands in Customer Defined Functions ...............381
Support for Additional Products...........................................................................381
Verifying the Package Configuration..........................................................................382
Distributing the Configuration....................................................................................382
Distributing the Configuration And Control Script with Serviceguard
Manager.................................................................................................................382
Copying Package Control Scripts with HP-UX commands...................................383
Distributing the Binary Cluster Configuration File with HP-UX Commands .....383
Configuring Cross-Subnet Failover.............................................................................383
Configuring node_name........................................................................................384
Configuring monitored_subnet_access..................................................................384
Creating Subnet-Specific Package Control Scripts.................................................385
Control-script entries for nodeA and nodeB....................................................385
Control-script entries for nodeC and nodeD....................................................385
Reconfiguring a Package...................................................................................................385
Migrating a Legacy Package to a Modular Package....................................................386
Reconfiguring a Package on a Running Cluster .........................................................386
Renaming or Replacing an External Script Used by a Running Package..............387
Reconfiguring a Package on a Halted Cluster ............................................................388
Adding a Package to a Running Cluster.....................................................................388
Deleting a Package from a Running Cluster ..............................................................388
Resetting the Service Restart Counter.........................................................................390
Allowable Package States During Reconfiguration ....................................................390
Changes that Will Trigger Warnings......................................................................396
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