Administering Service Groups

Use the Java Console to administer service groups in the cluster. Use the console to add and delete, bring online and take offline, freeze and unfreeze, link and unlink, enable and disable, autoenable, switch, and flush service groups. You can also modify the system list for a service group.

Adding a Service Group

The Java Console provides several ways to add a service group to the systems in a cluster. Use Cluster Explorer, Command Center, or the Template View to perform this task.

  To add a service group from Cluster Explorer

1. On the Edit menu, click Add, and click Service Group.

   or

   Click Add Service Group in the Cluster Explorer toolbar.

2. Enter the details of the service group:

   

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   1. Enter the name of the service group.
   2. In the Available Systems box, click the systems on which the service group will be added.
   3. Click the right arrow to move the selected systems to the Systems for Service Group box. The priority number (starting with 0) is automatically assigned to indicate the order of systems on which the service group will start in case of a failover. If necessary, double-click the entry in the Priority column to enter a new value.
   4. To add a new service group based on a template, click Templates. Otherwise, proceed to step 2g. (Alternative method to add a new service group based on a template: From Cluster Explorer, click Templates on the Tools menu. Right-click the Template View panel, and click Add as Service Group from the menu.)
   5. Click the appropriate template name, then click OK.
   6. Click the appropriate service group type. A failover service group runs on only one system at a time; a parallel service group runs concurrently on multiple systems.
   7. Click Show Command in the bottom left corner if you want to view the command associated with the service group. Click Hide Command to close the view of the command.
   8. Click OK.

  To add a service group from Command Center

1. In the Command Center configuration tree, expand Commands>Configuration>Cluster Objects>Add Service Group.

   or

   Click Add service group in the Command Center toolbar.

2. Enter the name of the service group.

   

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3. In the Available Systems box, click the systems on which the service group will be added.
4. Click the right arrow to move the selected systems to the Systems for Service Group box. The priority number (starting with 0) is automatically assigned to indicate the order of systems on which the service group will start in case of a failover. If necessary, double-click the entry in the Priority column to enter a new value.
5. To add a new service group based on a template, click Templates. Otherwise, proceed to step 8.
6. Click the appropriate template name.
7. Click OK.
8. Click the appropriate service group type. A failover service group runs on only one system at a time; a parallel service group runs concurrently on multiple systems.
9. Click Apply.

  To add a service group from the Template View

1. From Cluster Explorer, click Templates on the Tools menu.
2. Right-click the Template View panel, and click Add as Service Group from the pop-up menu. This adds the service group template to the cluster configuration file without associating it to a particular system.

   

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3. Use System Manager to add the service group to systems in the cluster.