System Management Guide: Operating System and Devices

Enabling Dynamic Processor Deallocation

You can turn the Dynamic Processor Deallocation on or off and, if the processor deallocation fails when enabled, you can restart it.

You can use SMIT or system commands. To perform these tasks, you must log in as root.

For additional information, see Enabling Dynamic Processor Deallocation in the AIX 5L Version 5.1 System Management Concepts: Operating System and Devices.

SMIT Fastpath Procedure

1. Type smit system at the system prompt, then press Enter.
2. In the Systems Environment window, select Change / Show Characteristics of Operating System.
3. Use the SMIT dialogs to complete the task.

To obtain additional information for completing the task, you can select the F1 Help key in the SMIT dialogs.

Commands Procedure

You can use the following commands to work with the Dynamic Processor Deallocation:

• Use the chdev command to change the characteristics of the device specified. For information about using this command, see chdev in the AIX 5L Version 5.1 Commands Reference, Volume 1.
• If the processor deallocation fails for any reason, you can use the ha_star command to restart it after it has been fixed. For information about using this command, see ha_star in the AIX 5L Version 5.1 Commands Reference, Volume 2.
• Use the errpt command to generate a report of logged errors. For information about using this command, see errpt in the AIX 5L Version 5.1 Commands Reference, Volume 2.