Appendix H: Live Partition Mobility (LPM)

A live partition mobility (LPM) migration is the process of moving a single active partition to a different system without disrupting the workload activity of the partition.

IMPORTANT: LPM Exit points MUST be registered in order for this feature to work.
Before you run the LPM process, ensure you have valid Powertech Encryption license keys for both the source and target partitions in place.

Powertech Encryption will use the exit points introduced in version 7.1, QIBM_QWC_SUSPEND and QIBM_QWC_RESUME, and register exit programs to each exit point, as follows:

  • QIBM_QWC_SUSPEND (CRRP660)

  • QIBM_QWC_RESUME (CRRP665)

TIP: Users signed on to the IBM i who have accessed the field procedure program prior to starting the migration program will not be affected by the migration process.

Testing LPM with Powertech Encryption

Once a system administrator has set up LPM, it can be tested to see how and if it works successfully. Use the instructions below to register new exit programs and ensure users can access encrypted data before starting and after finishing the LPM testing.

  1. Register the LMP Exit Point Programs by running the CRYPTO/ADDLPMEXT command.

  2. Before starting the LPM testing, have 1-2 users do the following:

    1. Sign on and stay signed on.

    2. Select * from yourLib.yourEncryptedFile.

  3. Start the LPM testing.

    NOTE: Before the partition is suspended or moved, the QIBM_QWC_SUSPEND exit program fires and saves important information that is required when QIBM_QWC_RESUME fires in step 5a below.

  4. During the LPM testing, occasionally run the SQL statement in step 2b to ensure there are no issues.

  5. Verify the LPM testing completes by noting the following events:

    1. After the move completes, the QIBM_QWC_RESUME exit points fire.

  6. For the users who signed on in step 2, do the following:

    1. Run the SQL statement in step 2b.

  7. Sign on with a new user.

  8. Run the SQL statement in step 2b.

  9. See if the LPM testing was successful by how the data returns:

    • Successful: If the data returns correctly based on authorization defined in the Powertech Encryption product, and the following messages appear in the QSYSOPR msgq:

      • Powertech Encryption Partition Migration: Suspend completed successfully

      • Powertech Encryption Partition Migration: Resume completed successfully

    • Unsuccessful: If the data does not return as expected. Review and send the joblog to Powertech Support for evaluation and help.