Disaster Recovery Considerations

You should consider the following information when protecting NEC clusters:

We do not recommend that you use partial shared disk configuration, in which some disks are owned by one node and some disks are owned by another node.
To avoid complications when matching disks, shared disks should be the last disks and should have the highest number when viewed from Administrative Tools, Computer Management, Disk Management.
You can configure disaster recovery information to be saved to an alternate location on a different machine to further protect disaster recovery information
You must back up the local disk of each cluster node with a physical hostname and shared disks with the virtual computer name (switched disk, cluster disk, or shared disk).