When you are restoring to a cluster setup of Exchange, use the Start
Services after Restore option. As an alternative, you can start
the Microsoft directory service from the Services dialog box in Control
Panel. This process will preserve the Restore in Progress key
and allow the Exchange database engine to read this key and initialize
properly. As a final step, go into Cluster Administrator and bring the
Microsoft Exchange directory resource online. This produces the following
System Event log entry, which can be ignored:
Event ID 1024
Source: ClusSvc
Type: Error
Category: (64)
Description:
The registry checkpoint for cluster resource Microsoft Exchange
Directory could not be restored to registry key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeDS. The
resource may not function correctly. Make sure that no other processes
have open handles to registry keys in this registry subtree.