Dell PowerVault NX1950 - Manual (Page 47)

Strategies for Backup and Recovery
47
Restoring Data
When restoring cluster data, focus on the following components:
• Cluster database—If the signature of the quorum disk has changed since
you last backed up data, instead of restoring the System State only, use
Automated System Recovery in the Backup or Restore Wizard to restore
the quorum disk signature along with the System State.
Follow the recommended Microsoft procedure described in the TechNet
article Restore the cluster database on a local node on the Microsoft website
at www.microsoft.com.
• Quorum resource— Before restoring the data, you must stop the cluster
service on all remaining cluster nodes after the node that was restored
reboots. The entire cluster is therefore unavailable while the restored
quorum data is copied to the quorum disk and the other nodes in the
cluster.
Follow the recommended Microsoft procedure described in the TechNet
article Restore the contents of a cluster quorum disk for all nodes in a cluster
on the Micrososft website at www.microsoft.com.
• Cluster node volumes—Using your backup application, perform a restore
of the required data. There are many options you can use to restore data.
You can restore from a snapshot, restore from a tape, or restore from
backup-to-disk media. Choose the option appropriate for your situation.
For more information see, the EqualLogic Customer Support website at
www.equallogic.com.
Book.book Page 47 Monday, February 4, 2008 1:26 PM