Managing persistent memory volume

You can view and manage the persistent memory volume that is assigned to a logical partition by using the Hardware Management Console (HMC).

Before you begin

When you are using HMC version 9.1.940, or later, and the firmware level is FW940, or later, you can view and manage the persistent memory volume that is assigned to a logical partition by using the Hardware Management Console (HMC). You can manage the persistent memory volume only when the logical partition is in the Not activated state. You cannot add virtual Persistent Memory (PMEM) volumes to a logical partition in which the Simplified Remote Restart (SRR) capability is enabled.

Note:
If a live partition mobility (LPM) operation fails due to insufficient memory in the destination system, complete the following steps to resolve the issue:
  1. Check if any of the logical partitions are in the Not Activated state.
  2. Check whether you require vPMEMs of the logical partition in the destination system.
  3. If the vPMEMs are not required in the destination system, delete all vPMEMs of the logical partition and resume the LPM operation.

About this task

To view and manage the persistent memory volume, complete the following steps:

Procedure

  1. In the navigation pane, click System resources.
  2. Click Systems. In the work pane, click a system of your choice. The system properties are displayed. In the navigation pane, click Partitions.
    Alternatively, you can click System resources > Partitions.
    The Partitions page opens where you can view all the partitions that belong to the system.
  3. In the work pane, click the partition for which you want to view or change the properties and capabilities. The Partition properties page is displayed.
    For Hardware Management Console (HMC) Version 9.940.0, or later, the virtual persistent memory volume can be assigned to an AIX® or Linux® partition only. Virtual I/O Server and IBM® i partitions are not supported.
  4. In the navigation pane, click the Persistent Memory tab to view the properties of the logical partition that is using persistent memory volume.
  5. Click Add to create the persistent memory volume. The Add Virtual Persistent Memory Volume window is displayed.
    1. Specify a name for the persistent memory volume in the Volume Name field.
    2. Specify a value for the size of the persistent memory volume in the Volume Size field.
    3. Select the Affinity checkbox if you want the operating system to get information about the amount of memory that is allocated across multiple DIMMs.
    4. Click OK to create the persistent memory volume. Alternatively, click Cancel to reject the changes and to close the window.
  6. In the Persistent Memory page, select an existing persistent memory volume. Click Action > Modify if you want to change the name of the persistent memory volume.
  7. In the Persistent Memory page, select an existing persistent memory volume. Click Action > Remove if you want to delete the persistent memory volume.