Migrating an existing data sharing group to Db2 13

If you have a Db2 12 Db2 data sharing group, and you want a Db2 13 data sharing group, you can migrate to the newer release.

Before you begin

  • Prepare your data sharing group for migration, as described in Preparing for Db2 13 migration in Db2 data sharing.

  • If your Db2 environment contains PBR RPN table spaces, APAR PH61633 is an important PE fix that you must apply on all data sharing members before migrating to or activating function levels in Db2 13.
    Attention: If your Db2 environment contains PBR RPN table spaces, do not migrate any data sharing members to function level V13R1M100, or activate function level V13R1M500 or higher, until you apply the PTF for PH61633 on all data sharing members and complete all ++HOLD actions. For more information, see the 21 June 2024 Red Alert.
  • When migrating the data sharing group to Db2 13, complete the migration steps for the first member before starting any of the other members on Db2 13.

  • During the migration to Db2 13, other group members can be active, but they might experience delays or timeouts if they attempt to access catalog objects that are being updated or that are locked by migration processing. Before beginning the migration process, confirm that Db2 12 is at the proper service level. Also, check your coupling facilities to ensure that the appropriate service levels are installed. Having the wrong service levels installed can result in data corruption. No specific service level requirements exist for CFLEVELs other than 12, but CF levels 13 and 14 are recommended for additional function. Use the z/OS® D CF command to display the service levels for IBM® coupling facilities.

  • Read the information about migration considerations in Incompatible changes for Db2 13 migration or function level activation.
  • Read the information in 00C10207.
Important: Migration to Db2 13 is only supported from Db2 12.
Important: If you are migrating the source, proxy, and target data sharing groups in a GDPS® Continuous Availability with zero data loss environment to Db2 13, see Upgrading a Db2 12 GDPS Continuous Availability with zero data loss environment to a Db2 13 environment for the order in which you need to perform the migrations.
Important: Inactive members that never started in Db2 12 with the fallback SPE (APAR PH37108) applied cannot start after the first data sharing member is migrated to Db2 13 at function level 100.

To migrate an existing data sharing group to Db2 13, complete the following tasks: