Managing Serviceguard Eighteenth Edition, September 2010

Removing Nodes from Participation in a Running Cluster........................................343
Halting the Entire Cluster ...........................................................................................344
Automatically Restarting the Cluster .........................................................................344
Halting a Node or the Cluster while Keeping Packages Running..............................344
What You Can Do...................................................................................................345
Rules and Restrictions............................................................................................345
Additional Points To Note......................................................................................347
Halting a Node and Detaching its Packages..........................................................348
Halting a Detached Package..................................................................................349
Halting the Cluster and Detaching its Packages....................................................349
Example: Halting the Cluster for Maintenance on the Heartbeat Subnets............349
Managing Packages and Services ....................................................................................350
Starting a Package .......................................................................................................350
Starting a Package that Has Dependencies............................................................351
Using Serviceguard Commands to Start a Package...............................................351
Starting the Special-Purpose CVM and CFS Packages.....................................351
Halting a Package .......................................................................................................351
Halting a Package that Has Dependencies............................................................352
Using Serviceguard Commands to Halt a Package ..............................................352
Moving a Failover Package .........................................................................................352
Using Serviceguard Commands to Move a Running Failover Package................352
Changing Package Switching Behavior ......................................................................353
Changing Package Switching with Serviceguard Commands..............................353
Maintaining a Package: Maintenance Mode...............................................................353
Characteristics of a Package Running in Maintenance Mode or Partial-Startup
Maintenance Mode ................................................................................................354
Rules for a Package in Maintenance Mode or Partial-Startup Maintenance
Mode ................................................................................................................355
Dependency Rules for a Package in Maintenance Mode or Partial-Startup
Maintenance Mode ..........................................................................................356
Performing Maintenance Using Maintenance Mode.............................................356
Procedure..........................................................................................................357
Performing Maintenance Using Partial-Startup Maintenance Mode....................357
Procedure..........................................................................................................357
Excluding Modules in Partial-Startup Maintenance Mode..............................358
Reconfiguring a Cluster....................................................................................................359
Previewing the Effect of Cluster Changes...................................................................361
What You Can Preview..........................................................................................361
Using Preview mode for Commands and in Serviceguard Manager....................361
Using cmeval..........................................................................................................362
Updating the Cluster Lock Configuration..................................................................364
Updating the Cluster Lock Disk Configuration Online.........................................364
Updating the Cluster Lock LUN Configuration Online........................................364
Reconfiguring a Halted Cluster ..................................................................................365
14 Table of Contents