T-SQL: Wie lange dauert das restore?

Wie lange dauert das Restore noch?

SELECT
    session_id,
    command,
    percent_complete,
    start_time,
    estimated_completion_time / 1000 AS Restsekunden,
    DATEADD(SECOND, estimated_completion_time / 1000, GETDATE()) AS VoraussichtlichesEnde
FROM sys.dm_exec_requests
WHERE command LIKE 'RESTORE%'