Switching Over and Switching Back › Recovering Active Server › Recover Active Server Using the Manager

Recover Active Server Using the Manager

If the switchover process did not complete properly, Arcserve RHA enables you to manually select which server will act as the active server through a process called Recover Active Server.

Important! While this option is the right choice in certain situations, use it with caution. If used improperly, data loss can occur. Normally, Arcserve RHA will not allow switchover from one host to another until all data is synchronized. It is designed this way so users are not redirected to an out-of-date data set, which then overwrites what may be a more current data set. When using the Recover Active Server option, Arcserve RHA redirects users to one server or the other with no regard as to which server has the correct data set. Thus, as an administrator, you must manually ensure that the server you are making active has the most up-to-date data set.

To recover active server using the Manager

1. On the Scenario pane, select the scenario whose active server you want to recover and stop it.
2. From the Tools menu, select the Recover Active Server option.

   Arcserve RHA verifies which host is currently the active one, and presents the results in the Recover Active Server dialog.

3. Click either the Make Master Active or Make Replica Active button, depending on which server you want to assume the active role.

   Messages appear in the Event pane, informing you that one of the server becomes active while the other becomes inactive. Now, the host you selected becomes the active server, and users are directed to it.

Important! In a disaster situation, if a standard switchover occurs and users are redirected to the Replica server for any period of time, it is important to replicate all changes that occurred on the Replica back to the Master, before making the Master server active again. Using the Recover Active Server option in such a situation may result in loss of data.