Module scan 

SCAN dispatch algorithm. SCAN (elevator) dispatch algorithm — sweeps end-to-end before reversing.

Originally described for disk-arm scheduling in Denning, P. J. (1967), “Effects of Scheduling on File Memory Operations”, Proc. AFIPS Spring Joint Computer Conference, 9–21. The same sweep discipline is the textbook “elevator” algorithm.

Structs

ScanDispatch

Elevator dispatch using the SCAN (elevator) algorithm.