FMV7899E
The client referenced a deduplicated extent that does not exist on the Tivoli Storage Manager server
Explanation
The deduplicated extent has been deleted from the server during the backup or archive operation. If you are using deduplication cache, it might be out of synch with the Tivoli Storage Manager server.
System action
The processing stops.
User response
Retry the operation. If the problem persists, turn off deduplication and retry the operation.