< Previous  | TOC | Index | Next  >

Administering systems in multiple clusters

Tasks for collectively administering systems in multiple clusters are available when you are viewing the following:

• All systems that are configured under all management servers
• All systems that are configured under a single management server

These tasks include:

• Modify Attributes
• Freeze System
• Unfreeze System

Editing attributes of selected systems

The Edit Attributes task in either the Home:Systems or Management Server:Systems view enables you to edit attributes on selected systems in a one-to-many fashion (one action modifies many systems).

 To edit attributes

1. In either the Home:Systems or Management Server:Systems view, in the Systems Listing table, do one of the following:
   • To edit the attributes of one or more systems, check the check box next to each system that you want.
   • To edit the attributes of all systems, check the check box at the top of the table.
2. In the Configuration task panel, click Edit attributes.
3. In the Edit Attribute dialog box, specify the following attribute details and then click OK:
   • The attribute name

     Select the attribute you want to edit from the Attribute Name drop-down menu.

   • The attribute value

     In the Values box, either click a value to change the it, or click the + (plus) button to add a value. Click a value and then click the - (minus) button to remove a value.

     You can enter more than one value for some attributes. Use the up- and down-arrow buttons to scroll among multiple values.

   • The systems on which to change the attribute

     Specify a setting for the Apply value to option. Apply to all nodes applies the changes to all systems listed the System List, which lists all systems on which the attribute is configured. Apply to selected nodes enables you to select nodes from the System List.

Freezing and unfreezing systems

The Freeze task in either the Home:Systems or the Management Server:Systems view enables you to place a system into a state in which it is active, but not monitored, not able to change state, and not able to fail over any of the service groups it contains to another system. Freezing is useful for performing maintenance tasks.

For example, you may want to freeze a system if you want to stop VCS (specifically, HAD), but do not want the service groups it contains and the corresponding applications to fail over to another cluster node.

During the time that a system is frozen, it is running, but not the applications that is hosts are not highly available. Do not unfreeze a service group until VCS has been restarted.

 To freeze or unfreeze selected systems

1. In either the Home:Systems or Management Server:Systems view, in the Systems Listing table, do one of the following:
   • To freeze or unfreeze one or more systems, check the check box next to each system that you want.
   • To freeze or unfreeze all systems, check the check box at the top of the table.
2. In the Operations task panel, click either Freeze or Unfreeze.

   ---

     Note   When you freeze the selected systems, a red padlock is added to the status icon for each system. When you subsequently unfreeze them, the padlock is removed.

   ---