Start of changeMigrating an existing data sharing group to Db2 12 End of change

If you have a Db2 11 Db2 data sharing group, and you want a Db2 12 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 12 migration in Db2 data sharing.

During the migration to Db2 12, 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 11 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.

Important: Migration to Db2 12 is only supported from Db2 11.
Important: Start of changeIf you are migrating the source, proxy, and target data sharing groups in a GDPS® Continuous Availability with zero data loss environment to Db2 12, see Upgrading a Db2 11 GDPS Continuous Availability with zero data loss environment to a Db2 12 environment for the order in which you need to perform the migrations.End of change
Important: Apply the for fallback SPE (APAR PI33871) and stop and restart Db2 11 for every subsystem or data sharing member that you plan to migrate to Db2 12. For data sharing, every member must be started in Db2 11 after the fallback SPE is applied. Inactive members that never started with the fallback SPE applied in Db2 11 cannot start in Db2 12 or Db2 11 after migration to Db2 12 and activation of function level 500 on any other member. See Required maintenance for Db2 12 installation or migration.
Before you start to migrate your data sharing group:

Start of changeTo migrate an existing data sharing group to Db2 12:End of change