HP Serviceguard A.11.20- Managing Serviceguard Twentieth Edition, August 2011

Example................................................................................................................277
Limitations..................................................................................................................277
Managing the Cluster and Nodes ..........................................................................................277
Starting the Cluster When all Nodes are Down ...................................................................278
Using Serviceguard Commands to Start the Cluster..........................................................278
Adding Previously Configured Nodes to a Running Cluster....................................................278
Using Serviceguard Commands to Add Previously Configured Nodes to a Running Cluster
................................................................................................................................279
Removing Nodes from Participation in a Running Cluster.......................................................279
Halting the Entire Cluster ..................................................................................................279
Automatically Restarting the Cluster ...................................................................................280
Halting a Node or the Cluster while Keeping Packages Running............................................280
What You Can Do......................................................................................................280
Rules and Restrictions...................................................................................................280
Additional Points To Note.............................................................................................282
Halting a Node and Detaching its Packages...................................................................283
Halting a Detached Package........................................................................................283
Halting the Cluster and Detaching its Packages...............................................................283
Example: Halting the Cluster for Maintenance on the Heartbeat Subnets............................284
Managing Packages and Services .........................................................................................284
Starting a Package ..........................................................................................................284
Starting a Package that Has Dependencies.....................................................................285
Using Serviceguard Commands to Start a Package..........................................................285
Starting the Special-Purpose CVM and CFS Packages..................................................285
Halting a Package ..........................................................................................................285
Halting a Package that Has Dependencies.....................................................................285
Using Serviceguard Commands to Halt a Package .........................................................286
Moving a Failover Package ..............................................................................................286
Using Serviceguard Commands to Move a Running Failover Package................................286
Changing Package Switching Behavior ..............................................................................286
Changing Package Switching with Serviceguard Commands.............................................286
Maintaining a Package: Maintenance Mode.......................................................................287
Characteristics of a Package Running in Maintenance Mode or Partial-Startup Maintenance
Mode .......................................................................................................................287
Rules for a Package in Maintenance Mode or Partial-Startup Maintenance Mode ...........288
Dependency Rules for a Package in Maintenance Mode or Partial-Startup Maintenance
Mode ..................................................................................................................289
Performing Maintenance Using Maintenance Mode.........................................................289
Procedure..............................................................................................................289
Performing Maintenance Using Partial-Startup Maintenance Mode.....................................290
Procedure..............................................................................................................290
Excluding Modules in Partial-Startup Maintenance Mode.............................................290
Reconfiguring a Cluster.........................................................................................................291
Previewing the Effect of Cluster Changes.............................................................................292
What You Can Preview................................................................................................293
Using Preview mode for Commands and in Serviceguard Manager...................................293
Using cmeval..............................................................................................................294
Updating the Cluster Lock Configuration.............................................................................295
Updating the Cluster Lock Disk Configuration Online.......................................................295
Updating the Cluster Lock LUN Configuration Online.......................................................295
Reconfiguring a Halted Cluster .........................................................................................295
Reconfiguring a Running Cluster........................................................................................296
Adding Nodes to the Cluster While the Cluster is Running ...............................................296
Removing Nodes from the Cluster while the Cluster Is Running ..........................................296
Changing the Cluster Networking Configuration while the Cluster Is Running......................297
12 Contents