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Adding and removing logical memory dynamically to and from a shared memory partition

You can dynamically add and remove logical memory to and from a running logical partition that uses shared memory (hereafter referred to as a shared memory partition) using the Hardware Management Console (HMC). This allows you to increase and decrease the logical memory assigned to the shared memory partition without having to shut down the logical partition.

A Linux shared memory partition supports the dynamic addition and removal of logical memory resources only if the DynamicRM tool package is installed on the Linux shared memory partition. To download the DynamicRM tool package, see the Service and productivity tools for Linux on POWER® systems Web site.

To dynamically add and remove logical memory to and from a running logical partition using the HMC, you must be a super administrator, service representative, product engineer, or operator of the HMC.

To add or remove logical memory to or from a shared memory partition, complete the following steps from the HMC:
  1. In the navigation pane, expand Systems Management > Servers.
  2. Click the server on which the shared memory partition runs.
  3. In the work pane, select the shared memory partition to which you want to add or remove logical memory.
  4. From the Tasks menu, click Dynamic Partitioning > Memory > Add or Remove. The Add/Remove Memory Resources window is displayed.
  5. In the Assigned Memory field, enter the total amount of logical memory that you want to assign to the shared memory partition. You can enter the size in a combination of gigabytes (GB) plus megabytes (MB).
  6. Click OK.


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Last updated: Thu, September 20, 2018