By using GAD, you can recover from a failure that occurs during the UR pair migration.
The recovery procedures from a failure that occurs during the UR pair migration depend on the progress of the migration procedures. In this section, the procedures prior to the steps for Starting operations of the target UR pairs are referred to as "during migration" and the procedures after the steps are referred to as "after migration is complete".
The recovery procedures from a failure that occurs "during migration" are to continue the operations in the source UR pair. The recovery procedures from a failure that occurs "after migration is complete" are to continue the operations in the target environment after isolating the source UR pair.