NEC Express5800 series User Manual page 53

[Execution Frequency]:
Specify the interval at which the Patrol Read is executed.
You can set the interval in hours, minutes, or seconds.
NOTES:
If you shutdown the server on the way of manual Patrol Read,
it is aborted. Execute the Patrol Read again when the
server is started.
If you shutdown the server on the way of schedule Patrol
Read, it will be restarted from the beginning at the next
start of the server.
Operation 49