SAP Landscape Management 3.0, Enterprise Edition

Enabling Log Retention Propagation

You enable log retention propagation to retain the log based on the smallest savepoint log position in the whole system replication landscape.

Prerequisites

You have permission Service(ForcedPrepare,ForcedUnPrepare,ForcedStart,ForcedStop).

For more information, see Standard Permissions.

Context

Log retention propagation should be enabled if you want to re-order your systems in a complex system replication setup.

Procedure

  1. Choose Operations.
  2. Choose Systems from the tabs.
  3. From the Operations dropdown for the system, choose Start of the navigation pathSAP HANA Replication Next navigation step Enable Log Retention PropagationEnd of the navigation path.
  4. Optional: Select the Set Note checkbox and enter a note to be displayed in the Description column of the instance.
  5. Choose Execute.

Results

  • The system sends to its source system the minimum log position of its own savepoint and the retained log position it gets from all direct secondaries as retained position.

  • The system sends the minimum log position of its own savepoint and the retained log position it gets from all direct secondaries to the secondaries as retained log position.

  • The system uses the minmum log position it gets from all direct secondaries and its source system (if not primary) as own retained log position.