Restoring the cluster quorum to a node with directory services
To restore the quorum to a node that is either running Active Directory or that is currently a domain controller, the node must be in Directory Services Restore Mode. The cluster services cannot run in this mode. So the cluster quorum must be restored separately, after the System State or the Shadow Copy Components are restored and after the node is restarted.
To restore the cluster quorum to a node running Active Directory or that is currently a domain controller
- In the NetBackup Backup, Archive, and Restore interface, open a Restore window.
- Select the backup image (or range of images) that contains the backup you want to restore.
Exclude the cluster quorum from the restore, as follows:
Expand System_State and then deselect Cluster_Database.
Expand Shadow Copy Components > System State and then deselect Cluster_Quorum.
- Continue the restore.
- When the restore operation is complete, restart the cluster node in Safe (repair) mode. Then select Directory Services Restore Mode.
- Start the NetBackup service(s).
- Open the NetBackup Backup, Archive, and Restore interface.
Select only the cluster quorum, as follows:
Expand System_State and select only Cluster_Database.
Expand Shadow Copy Components > System State and select only Cluster_Quorum.
- If the disk where the cluster quorum previously resided is changed, you may have to set the registry entry. This action forces the restore to continue.
The disk may have been replaced with a new one. Or the disk configuration may have been changed so that the cluster quorum now resides on a different disk. In the latter case, the drive letter can remain the same for the disk that contained the cluster quorum. The drive letter can remain the same even if the configuration has changed. It can also remain the same if the disk signatures in the restore media do not match the signatures in the cluster quorum.
- Continue the restore.
- When the restore is complete, restart the target node.
- Use Failover Cluster Manager to restart the cluster service on any nodes where it was stopped.