Active Directory Service DB backup preparation failed with: User Action: Retry the backup operation. If this problem persists, ...

Windows Server 2003

Active Directory Service DB backup preparation failed with:    User Action:
  Retry the backup operation. If this problem persists, investigate for common database problems, and  then retry the backup operation.  The backup has been cancelled.  Common database problems  include, but are not limited to failing disks, full disks, database contention, corruption.
  
  Additional Data:
  Error Value: %1 %2  Internal ID: %3

Active Directory replication detected a missing parent object for the following outgoing object in this directory partition. ... Active Directory Replication encountered the existence of objects in the following partition that have been deleted from ... Active Directory Replication encountered the existence of objects in the following partition that have been deleted from ... Active Directory schema cache failed to inherit all attributes for the following class. Class ID: %1 Class name: %2 The schema ... Active Directory Service DB backup preparation failed with: User Action: Retry the backup operation. If this problem persists, ... Active Directory shadow copy restore was unsuccessful. The contents of the Active Directory database are unpredictable. User ... Active Directory Sites and Services cannot locate two site link objects using the same transport as the site link bridge. ... Active Directory Sites and Services cannot locate two sites to create a working site link object. You may create a new site ... Active Directory successfully deleted the following column from the database. This column was previously used by the following ...