Unisphere and Unisphere Central 2020 R1 Administrator's Guide

Restore a Failed Volume Restore Point

Use the Restore Points tab in the Disaster Recovery view to activate a disaster recovery.

1. Click the HOME menu.
   The Unisphere CentralHome page is displayed.

   If a Storage Center is selected from the drop-down list in Unisphere Central, click (Home).

2. From the Data Mobility menu, click Disaster Recovery.
   The Disaster Recovery view opens to the Restore Points tab.
3. Filter the restore points displayed using the Filters pane:
   1. Select Ready To be Restored/Restarted from the Display menu.
   2. Select or clear the check boxes next to the Storage Centers in the list to show the restore points of interest.
4. Select one or more degraded or failed restore points from the list.
5. Click Restore/Restart.
   The Restore/Restart wizard opens.
6. Review the Restore Warnings and click Next.
7. Select the restore point that you want to modify, then click Edit Restore Settings. The Edit Restore Settings dialog box opens.
8. Choose a recovery method:
   • If the Recover Live Volume check box is available, select it to repair the Live Volume by reestablishing connectivity between the original source volume and activated volume. This option must be selected to preserve volume identity. If the Live Volume manages a replication, this option must be selected to preserve the managed replication. When selected, the New Source Volume Settings and Replication Settings are not available because the existing Live Volume settings are used
   • If the Recover Live Volume check box is not available or not selected, the Live Volume is recreated using the New Source Volume Settings and Replication Settings you specify. Volume identity is lost, and if the Live Volume manages a replication, the managed replication is removed.
9. (Replication only) If a source volume is being restored:
   • Select the Mirror Back Only check box to skip recreating the replication in the original direction and use the DR site as the source.
   • Select the Automatically Deactivate Destination check box to automatically remove server mappings from the activated volume without requiring administrator intervention. This option is available only if DR has been activated for the restore point. If this option is selected, IO to the activated volume should be halted before performing the restore.
10. Modify the New Source Volume Settings as needed. These settings are described in the online help.
11. Modify the Replication Settings as needed. These settings are described in the online help.
12. Click OK.
13. Click Next.
    If multiple restore points were selected, the Restore/Restart Settings [ Storage Center—Storage Center] wizard advances to the next restore point. Configure the settings and click Next for each restore point selected.
14. Review the Restore/Restart summary and, click Finish.
    Unisphere Central restores the replication or Live Volume. Use the Recovery Progress tab to monitor the replication or Live Volume.
15. On the Recovery Progress tab, when the restore point message displays Mirror is synced waiting for destination to be deactivated, halt IO to the destination volume.
16. Deactivate the destination volume by selecting the restore point and clicking Deactivate Destination.
17. Click Yes to confirm the deactivation.
    The destination volume is deactivated, the recovered volume is activated and mapped to the configured server, and the replication direction is reversed so that the recovered volume becomes the source.