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What order will the cylinders be serviced

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Reference no: EM132291971

Consider a disk with n cylinders numbered sequentially 0, 1, 2,...., n-1. The read/write head is currently on cylinder 800. The queue of requests to be serviced is as follows:

163, 89, 137, 913, 1224, 1119, 1522, 139

Where 163 is the oldest request and 139 is the latest arrival.

a) In what order will the cylinders be serviced under the following scheduling policies?

FIFO________________________________________________________

SSTF________________________________________________________

SCAN________________________________________________________

b) What will be the distance (number of cylinders) traveled by the R/W head under each policy?

FIFO_____________

SSTF_____________

SCAN_____________

Reference no: EM132291971

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