Operating System (I/O Management: Disk Arm Scheduling & RAID) It is known that a disk drive has 256 cylinders, with the number cylinder starts at 0 and ends at 255. The position of the needle on the disk drive currently stops at point 128. It is also known that the needle always “goes to the cylinder with the smaller number first”. The order of the positions visited sequentially is: 254, 64, 32, 100, 50, 70. Of the 3 choices of algorithms below, which one is the best algorithm? Make each image and determine the seektime. a. SCAN b. C-SCAN c. FIFO

Operating System (I/O Management: Disk Arm Scheduling & RAID) It is known that a disk drive has 256 cylinders, with the number cylinder starts at 0 and ends at 255. The position of the needle on the disk drive currently stops at point 128. It is also known that the needle always “goes to the cylinder with the smaller number first”. The order of the positions visited sequentially is: 254, 64, 32, 100, 50, 70. Of the 3 choices of algorithms below, which one is the best algorithm? Make each image and determine the seektime. a. SCAN b. C-SCAN c. FIFO

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter13: File Input And Output

Section: Chapter Questions

Problem 2RQ

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