Managing Serviceguard Sixteenth Edition, March 2009

Managing Packages and Services ....................................................................................315
Starting a Package .......................................................................................................316
Starting a Package that Has Dependencies............................................................316
Using Serviceguard Commands to Start a Package...............................................316
Starting the Special-Purpose CVM and CFS Packages.....................................317
Halting a Package .......................................................................................................317
Halting a Package that Has Dependencies............................................................317
Using Serviceguard Commands to Halt a Package ..............................................317
Moving a Failover Package .........................................................................................318
Using Serviceguard Commands to Move a Running Failover Package................318
Changing Package Switching Behavior ......................................................................318
Changing Package Switching with Serviceguard Commands..............................318
Maintaining a Package: Partial-Startup Maintenance Mode.......................................319
Performing Maintenance Using Partial-Startup Maintenance Mode....................319
Excluding Modules...........................................................................................320
Characteristics of a Package Running in Partial-Startup Maintenance Mode.......321
Dependency Rules for a Package in Partial-Startup Maintenance Mode..............322
Reconfiguring a Cluster....................................................................................................323
Previewing the Effect of Cluster Changes...................................................................324
What You Can Preview..........................................................................................325
Using Preview mode for Commands and in Serviceguard Manager....................325
Using cmeval..........................................................................................................326
Updating the Cluster Lock Configuration..................................................................327
Updating the Cluster Lock Disk Configuration Online.........................................327
Updating the Cluster Lock LUN Configuration Online........................................328
Reconfiguring a Halted Cluster ..................................................................................328
Reconfiguring a Running Cluster................................................................................329
Adding Nodes to the Cluster While the Cluster is Running ................................329
Removing Nodes from the Cluster while the Cluster Is Running ........................330
Changing the Cluster Networking Configuration while the Cluster Is
Running..................................................................................................................331
What You Can Do.............................................................................................331
What You Must Keep in Mind..........................................................................332
Example: Adding a Heartbeat LAN.................................................................333
Example: Deleting a Subnet Used by a Package...............................................334
Removing a LAN or VLAN Interface from a Node.........................................335
Changing the LVM Configuration while the Cluster is Running .........................336
Changing the VxVM or CVM Storage Configuration ...........................................336
Changing MAX_CONFIGURED_PACKAGES.............................................................337
Configuring a Legacy Package.........................................................................................338
Creating the Legacy Package Configuration ..............................................................338
Configuring a Package in Stages............................................................................339
Editing the Package Configuration File.................................................................339
Creating the Package Control Script...........................................................................342
Table of Contents 13