The cluster resource host subsystem (RHS) stopped unexpectedly. An attempt will be made to restart it. This is usually due to a problem in a resource DLL. Please determine which resource DLL is causing the issue and report the problem to the resource vendor.
In Windows Failover Clustering, an MS DTC Resource fails to come online if configured with a DataKeeper volume resource.
Log Name: System
Date: <Date Time>
Event ID: 1146
Task Category: Resource Control Manager
Install Service Pack 1 for Windows 2008 R2. This will allow the MS DTC resource to operate properly with a DataKeeper volume resource.