How Much More Time Until That Backup/Restore is Done?

SQL Server Database Administrators always get to hear the age old question: How much longer will that restore or backup take?  We’ve always answered this question based on past experiences along with some educated “guestimations.”

SELECT r.session_id ,r.command,CONVERT(NUMERIC(6,2),r.percent_complete)AS[Percent Complete],CONVERT(VARCHAR(20),DATEADD(ms,r.estimated_completion_time,GetDate()),20)AS[ETA Completion Time],CONVERT(NUMERIC(10,2),r.total_elapsed_time/1000.0/60.0)AS[Elapsed Min],CONVERT(NUMERIC(10,2),r.estimated_completion_time/1000.0/60.0)AS[ETA Min],CONVERT(NUMERIC(10,2),r.estimated_completion_time/1000.0/60.0/60.0)AS[ETA Hours]

,CONVERT(VARCHAR(1000),(SELECT SUBSTRING(text,r.statement_start_offset/2

,CASE WHEN r.statement_end_offset =-1 THEN 1000 ELSE (r.statement_end_offset-r.statement_start_offset)/2 END)

FROM sys.dm_exec_sql_text(sql_handle)))FROM sys.dm_exec_requests r

WHERE command IN(‘RESTORE DATABASE’,’BACKUP DATABASE’)