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Legato NetWorker, Release 7.0
Disaster Recovery Guide
Chapter 6: Microsoft Cluster Disaster Recovery (Windows NT 4.0)
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4. Replace the cluster shared disks.
5. Check the drive assignments through Windows Explorer. The “phantom”
drives you see are the original shared disks. These drives cannot be
deleted or disconnected from the Windows Explorer.
6. Remove the registry entries for the phantom disks:
a. Use regedit to display the following registry entry:
HKEY_LOCATION_MACHINE\SYSTEM\CurrentControlSet\Services
\ Clusdisk\Parameters\Signatures
The numbers listed under Signatures are the drive signatures for the
former shared disks. Delete these numbers.
b. Reboot the node.
c. Using Windows Explorer, check the status of the disks. There should
no longer be any phantom disks and the new shared disks should
have the proper drive letter assignments.
The new shared disk signatures are located in the following registry
key:
HKEY_LOCATION_MACHINE\SYSTEM\CurrentControlSet\Services
\Clusdisk\Parameters\AvailableDisks
Task 6: Recover the Data
To recover the data:
1. Use the NetWorker User program to restore the remaining data from tape.
Do not restore the following:
•System state
•RepairDisk
• Windows NT system directory
For details, refer to “Chapter 4: Windows Disaster Recovery” on page 47.
2. Reboot Node_A.
3. Log on to a domain with Administrator privileges.
Task 7: Check the Disk Signatures
If you are replacing the shared disks, perform the following procedure to check
the disk signatures. If you are not replacing the shared disks, skip this task and
proceed to “Task 8: Join Node_B to the Cluster” on page 124.