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Recovering Data › Recover Lost Data from Replica

Recover Lost Data from Replica

In the following steps, File Server scenario screens are used as examples, but the procedures are similar for all server types.

To recover all lost data from a Replica

  1. On the Manager, from the Scenario pane select the desired scenario and stop it.
  2. [For database applications only] Stop the database services on the Master host.
  3. On the Manager, from the scenario folder select the Replica host:

    Note: If multiple Replica servers participate in the required scenario, select the Replica from which you want to recover data.

    The Restore Data option is enabled.

  4. From the Tools menu, select Restore Data, or click the Restore data button on the Standard toolbar:

    RHA Manager Toolbar showing Restore Data button

    Note: If the user credentials you used to log in to the Manager are different than the ones required for working with the Engine on the Replica, a User credentials dialog appears, asking you to enter log on account details for the selected Replica.

    The Recovery Method page of the Restore Data wizard appears:

    Recovery Method screen showing Rewind Data on Replica option

    Note:  If the Data Rewind property is set to On, another Restore Data dialog will appear. In this case, select the first option - Replace all data on Master with the data on Replica. This option simply restores data without a rewind.

  5. Click Next. The Synchronization Method page appears:

    Sychronization Method screen

  6. Make sure that the appropriate Synchronization method is selected (Block Synchronization). For more details, see the Arcserve RHA Administration Guide. Click Finish.

    Once you finished initiating the recovery process, Arcserve RHA builds a temporary reverse tree using the selected Replica as the root, and the Master as the terminating node. After the Master recovery process ends, the temporary scenario is deleted, and you receive the following message in the Event pane: Synchronization finished.

    Note: If an error occurred during the temporary Recovery scenario run, the Recovery scenario may stop and remain in the Scenario pane. In this case, you should remove it by right-clicking it and selecting the Remove option from the pop-up menu. After the Recovery scenario is removed, the original scenario re-appears in the Scenario pane. Then, you can restart the original scenario, and repeat the recovery process if necessary.

  7. By default, once a data recovery occurs a Synchronization Report is generated:

    Sychronization Report for Exchange scenario

    Now, the replication process can restart following the original scenario.