Upgrading Db2 servers in HADR environments that require standby reinitialization

This procedure can be used in all scenarios. The procedure turns off HADR feature, upgrades the primary database to the new Db2 version, then reinitialize HADR by using a new backup image taken after the upgrade.

Procedure

Stop the HADR primary or standby databases. For more information, see Stopping DB2® High Availability Disaster Recovery (HADR).
Upgrade the Db2 server where the primary database resides by using one of the following tasks:
- Upgrading a Db2 server (Windows)
- Upgrading a Db2 server (Linux and UNIX)
Reinitialize HADR database. For more information, see Initializing high availability disaster recovery (HADR). Before you activate your standby database, you must move the log files from the previous version of Db2 out of the log path of the new version of Db2. If you do not move the log files, Db2 might try to use the old files and fail to initialize.