Oracle^® Solaris Cluster 4.3 Data Services Planning and Administration Guide

How to Set Preemption Mode for a Resource Group

The preemption_mode property determines if a resource group will be preempted from a node by a higher-priority resource group because of node overload. The property indicates the cost of moving a resource group from one node to another.

1. Assume the root role on one active node of the cluster.
2. Start the clsetup utility.

   phys-schost# clsetup

   The clsetup menu is displayed.

3. Choose the menu item, Other Cluster Tasks.

   The Other Cluster Tasks Menu is displayed.

4. Choose the menu item, Manage Resource Group Load Distribution.

   The Manage Resource Group Load Distribution Menu is displayed.

5. Choose the menu item, Set Preemption Mode per Resource Group.

   The Set the Preemption Mode of a Resource Group Menu is displayed.

6. Type yes.
7. Type the option number for the resource group.

   If the resource group has a preemption mode set, it is displayed, similar to the following:

   The preemption mode property of "rg11" is currently set to the following: preemption mode:  Has_Cost

8. Type the option number for the preemption mode you want.

   The three choices are Has_cost, No_cost, or Never.

9. Type yes to proceed with the update.
10. Press the Return key to return to the previous menu.

    The Manage Resource Group Load Distribution Menu is displayed.