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Changing the paging VIOS partitions assigned to a shared memory partition

You can use the Hardware Management Console (HMC) to change the primary and secondary Virtual I/O Server logical partitions (hereafter referred to as paging VIOS partitions) that are assigned to a logical partition that uses shared memory. You can also add or remove a secondary paging VIOS partition to or from a logical partition that uses shared memory (hereafter referred to as a shared memory partition).

Before you change the paging VIOS partitions that are assigned to a shared memory partition, complete the following tasks:
  1. Ensure that the Virtual I/O Server logical partitions (that you plan to assign to the shared memory partition as paging VIOS partitions) are assigned to the shared memory pool. For instructions, see Changing the paging VIOS partitions assigned to the shared memory pool.
  2. Ensure that the paging space device (that is accessed through the paging VIOS partitions that you plan to assign to the shared memory partition) is assigned to the shared memory pool. For instructions, see Adding and removing paging space devices to and from the shared memory pool.
To change the paging VIOS partitions that are assigned to a shared memory partition, complete the following steps:
  1. In the navigation pane, open Systems Management > Servers, and click the system on which the shared memory partition is located.
  2. In the work pane, select the logical partition, click the Tasks button, and click Configuration > Manage Profiles. The Managed Profiles window is displayed.
  3. Select the partition profile that you want to change.
  4. Click Actions, and click Edit. The Logical Partition Profile Properties window is displayed.
  5. Click the Memory tab.
  6. Specify a Virtual I/O Server logical partition for VIOS 1 and VIOS 2.
    Table 1. Change options for the paging VIOS partitions
    Desired change Field to change
    Change the Virtual I/O Server logical partition that is assigned as the primary or the only paging VIOS partition. Select a different Virtual I/O Server logical partition for VIOS 1.
    Define a secondary paging VIOS partition. Select a Virtual I/O Server logical partition for VIOS 2.
    Change the Virtual I/O Server logical partition that is assigned as the secondary paging VIOS partition. Select a different Virtual I/O Server logical partition for VIOS 2.
    Remove the secondary paging VIOS partition. Select None for VIOS 2.
  7. Click OK.
  8. Shut down the shared memory partition and reactivate it with the changed partition profile.
After you change the paging VIOS partitions that are assigned to a shared memory partition, restart the shared memory partition with the changed partition profile. For instructions, see Shutting down and restarting logical partitions.
Parent topic: Managing the memory configuration of a logical partition
Related concepts:
Paging VIOS partition

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Last updated: Thu, September 20, 2018