Configuring VHS Replication

Replication is configured by setting the value of the REPL_SOURCE keyword in the replicated service’s configuration file. The service name must match the service name of the source VHS. The Domain ID must be different than the source VHS. The keyword REPL_CHECK_INTERVAL is an optional keyword that sets the interval in seconds that a replicated service will check the source for new changes. The minimum check interval is 5 seconds.

See Replication Keywords for more information about configuring replication.

Note: When replication is first started, the source service will write its changes to its change queue and the replicated service will begin writing those changes to its own database. The replicated data will not be backfilled with any data already residing in the source VHS. It will only replicate the changes that have occurred since it was started.

To Configure and Start Replication

  1. Add an ARS and RSM to the host server for the replicated service. This service must have the same name as the source service.
  2. Add the folder and files for the replicated service.
  3. Configure the replicated service.
  1. In the service configuration files, enable the replication keywords.
  2. Set the Domain ID of the replicated service to an ID other than that of the source service.
  3. For REPL_SOURCE, specify the name of the source service.
  1. Save the changes and close the file.
  2. Start the services.