SELECT
MAX(effective_bytes_per_second) EPS
FROM v$backup_sync_io
WHERE device_type <> 'DISK'
AND open_time BETWEEN TO_DATE('2010-01-06 03:00:00','yyyy-mm-dd hh24:mi:ss') AND TO_DATE('2010-01-06 17:00:00','yyyy-mm-dd hh24:mi:ss')[@more@]