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Configuring Active Memory Expansion for AIX logical partitions

You can configure Active Memory™ Expansion for an AIX® logical partition by using the Hardware Management Console (HMC). Configuring Active Memory Expansion for a logical partition compresses the memory of the logical partition and thus expands its memory capacity.

You can configure Active Memory Expansion for logical partitions that use dedicated memory and logical partitions that use shared memory.

Before you start, complete the following tasks:

  1. Complete the required preparation tasks for Active Memory Expansion and ensure that your configuration meets the configuration requirements for Active Memory Expansion. For instructions, see Preparing to configure Active Memory Expansion.
  2. Enter the required activation code to enable Active Memory Expansion on the server. For instructions, see Entering the activation code for Active Memory Expansion.
To configure Active Memory Expansion for a logical partition, complete the following steps by using the HMC:
  1. In the navigation pane, open Systems Management > Servers, and click the system on which the logical partition is located.
  2. In the work pane, select the logical partition.
  3. From the Tasks menu, select Configuration > Manage Profiles. The Managed Profiles window is displayed.
  4. Select the partition profile that you want to change.
  5. Click Actions, and click Edit. The Logical Partition Profile Properties window is displayed.
  6. Click the Memory tab.
  7. Select Use Active Memory Expansion to enable Active Memory Expansion for the logical partition.
  8. In the Active Memory Expansion factor field, enter a value between 1.00 and 10.00.
  9. Click OK.
  10. Shut down the logical partition and reactivate it with the changed partition profile. For instructions, see Shutting down AIX logical partitions and Activating a partition profile.
After you configure Active Memory Expansion for the logical partition, monitor the performance of the workload and adjust the configuration, if necessary. For instructions, see Adjusting the Active Memory Expansion configuration to improve performance.
Parent topic: Configuring virtual resources for logical partitions
Related concepts:
Active Memory Expansion for AIX logical partitions

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Last updated: Thu, September 20, 2018