Dynamically changing configuration of a replication group - assure_mimix - 6.0

For environments running version 5.2.02.00 or higher of Assure MIMIX for AIX, certain types of replication group configuration changes can be made dynamically without affecting the production environment. The changes listed as supported dynamically in the previous table do not require stopping user’s applications and unmounting the filesystems on the production server.

Any replication group changes listed in the previous table that are not supported for dynamic update must be made manually using instructions in Manually changing configuration of a replication group .

Before launching the Configuration Wizard to change the replication group configuration, do the following:

1. On the Production server, stop the LCA replication agent for the replication group that you are changing.

   stopsrc -cs scrt_lca-<primary context id>

2. On the Production server, run esmon to verify that all outstanding LFCs have been sent to the Recovery servers. Depending on the backlog of containers to be applied, this could take some time.

   esmon <primary context id>

   Wait for the message "LFC information is not available" before stopping the replication group on the Recovery servers.

3. On each of the Recovery servers, stop the Assure MIMIX for AIX replication group you are changing to unload the Recovery server drivers.

   rtstop -FC<primary context id>

   Stopping the Assure MIMIX for AIX replication group on the Recovery servers does not impact the production environment.

4. Use the configuration wizard to make the changes. From the Replication Group portlet, click Configuration. From the resulting Configuration Window, click the Change Replication action for the replication group you want to change. Follow the wizard to make changes.

   When you click Finish in the wizard to change the configuration, the Configuration Summary area lists the steps required to initialize the configuration and shows which steps have been completed or are in progress as described in Configuration initialization progress (Change Configuration).

5. After the reconfiguration process has successfully completed. Start the replication group in the following order:

1. On each of the Recovery servers, start the replication group that you changed.

   rtstart -C<primary context id>

2. On the Production server, start the LCA replication agent for the replication group that you changed.

startsrc -s scrt_lca-<primary context id>