Suppose the following disk request sequence (track numbers) for a disk with 100 tracks is given:
60, 50,10,50,80,25,70.
Assume that the initial position of the R/W head is on track 50.
1) If SSTF is used :
As current R/W head is at 50 and request queue also has request for 50 in queue so shortest seek time request will be 0 so it will be served first. Am i right ??
2) There are two requests for 50 in queue so both will have shortest seek as Head is already at 50 so both 50 request will be served before moving head somewhere else. AM right ? if not please explain