The software versions and levels on primary and DR sites must be identical for planned switchover and switchback testing.
You must validate the following applications and platforms:
Avaya Aura® System Manager
Avaya Control Manager
Avaya Breeze® platform
Avaya Aura® Communication Manager and ESS
Avaya Aura® Application Enablement Services
Avaya Analytics™
Avaya Oceana® Snap-ins
There may be different software versions during the upgrade process for software upgrade maintenance windows. Ensure that DC1 and DC2 applications are at the same software release version before you re-enable solution replication from each application in DC1 to DC2. The software versions of the applications in DC1 and DC2 must be the same for replication to work between the two applications.
Create a table to record the software versions of each application for primary and DR sites. This step is unnecessary for unplanned maintenance windows due to application failures.