Adding processor resources dynamically
You can dynamically add processor resources to a running logical partition using the Hardware Management Console (HMC). This allows you to increase the processing capacity of a running logical partition without having to shut down the logical partition.
A Linux logical partition supports the dynamic
addition of processor resources only if the following conditions are met:
- A Linux distribution that supports dynamic partitioning is installed on the Linux logical partition. Distributions that support dynamic partitioning include SUSE Linux Enterprise Server 9 and later versions.
- The DynamicRM tool package is installed on the Linux logical partition. To download the DynamicRM tool package, see the Service and productivity tools for Linux on POWER® systems Web site.
The HMC Classic interface is not supported in Hardware Management Console (HMC) Version 8.7.0, or later. The functions that were previously available in the HMC Classic interface are now available in the HMC Enhanced+ interface.
For more information about changing the processor settings when the HMC is at version 8.7.0, or later, see Changing processor settings.
To add processor resources dynamically to a running logical
partition using the HMC,
follow these steps:
- In the navigation pane of your HMC, open Systems Management, open Servers, and click the managed system on which the logical partition is located.
- In the work pane, select the logical partition, click the Tasks button, and choose .
- Enter the amounts of processor resources that you want the logical partition to have into the fields in the Current column. If the logical partition uses shared processors, you might need to adjust the number of virtual processors so that it is greater than the number of processing units.
- Adjust the settings in the Options area if necessary. You might need to increase the value in the Timeout (minutes) field to allow enough time for the HMC to complete the operation. (These settings relate to how the managed system adds processor resources dynamically. These settings are not retained after the addition completes.)
- Click OK.
