Remove Processors from a Logical Partition

You can use the Hardware Management Console (HMC) to remove processors from a partition without rebooting the partition's operating system.

When you remove a processor, it is freed by the partition and available for use by other partitions. The number of processors remaining after the Remove operation cannot be less than the minimum number specified in this partition's active profile. To learn more about the resources being used by the activated partition, select the Details tab of this partition's Properties folder. To learn more about the partition's active profile, look at the profile's properties.

To remove processor resources from an active partition without rebooting the partition, do the following:

  1. Log in to the HMC using either the System Administrator or Advanced Operator roles.
  2. In the Navigation area, click the console's icon to expand the tree.
  3. In the Navigation area, click the Server and Partition folder.
  4. In the Contents area, click the Server Management icon.
  5. In the Contents area, click the managed system's icon to expand the tree.
  6. Select the partition from which you want to remove the processors.
  7. From the Selected menu, select Dynamic Logical Partitioning.
  8. Select Processors.
  9. The Dynamic Reconfiguration window opens. Click Remove resource from this partition.
  10. Select the number of processors you want to remove from this partition.
  11. In the Task timeout field, select the number of minutes you want the system to wait before it stops the adapter dynamic reconfiguration task.
  12. In the Details field, select the level of feedback you would like to see while the HMC performs the task. Details shown include the operating system's standard output and standard error information.
  13. When you are finished selecting the correct information, click OK.