Introducing Arcserve Backup Agents and Options › Using Options › Disaster Recovery Option › Recovering NEC Clusters › Disaster Recovery on NEC CLUSTERPRO/ExpressCluster LE › Recover Data if NEC CLUSTERPRO/ExpressCluster LE Mirrored Disk Data is Corrupted

Recover Data if NEC CLUSTERPRO/ExpressCluster LE Mirrored Disk Data is Corrupted

If the data on the mirrored disk becomes corrupted or inaccessible from any cluster node, but the cluster nodes are undamaged, perform the following procedure to recover your data:

To recover your data from the cluster node

1. From the Start menu, select Programs, and select Computer Management. Select Services and change the Startup type of the NEC ExpressCluster Server services to Manual:

   Perform this task on all servers.

2. Shut down the cluster and replace the failed mirrored disk, if necessary.
3. Reboot the servers.
4. Start the Mirror Disk Administrator on the server to be restored.
5. From the Mirror Disk Administrator menu bar, select Disk Operation, Enable Access, and set the mirrored disk to make it accessible.
6. Use Arcserve Backup to restore data to the mirrored disk.

   Note: Use your normal restore settings when restoring this data.

7. From the Mirror Disk Administrator menu bar, select Disk Operation, Disable Access, and return the mirrored disk setting to restrict access.
8. Open Services and set the startup type of the NEC ExpressCluster Server service to Automatic.

   Perform this task on all servers.

9. From the Start menu, select Shut Down to reboot all of the servers.