1. Disk Scheduling Chapter 14 Based on the slides supporting the text and B.Ramamurthy’s slides from Spring 2001 2. User-Space I/O Software Layers of the I/O system and…

Chapter 12: Mass-Storage Systems Chapter 12: Mass-Storage Systems Overview of Mass Storage Structure Disk Structure Disk Attachment Disk Scheduling Disk Management Swap-Space…

1. Chapter 12:Mass-Storage Systems 2. Overview of Mass Storage Structure Magnetic disks provide bulk of secondary storage Drives rotate at 70 to 250 times per second Ipod…

1. Chapter 8:Secondary-Storage Structure 2. Overview of Mass Storage Structure Magnetic tape Was early secondary-storage medium Relatively permanent and holds large quantities…

Slide 1Chapter 6 I/O Systems Slide 2 2 Chapter Objectives When finish this chapter, you will understand the following: How operating systems manage I/O? What is role of Device…

Slide 1Chapter 8: Secondary-Storage Structure Slide 2 12.2 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts Overview of Mass Storage Structure Magnetic tape…

Slide 11 Fred Kuhns (6/3/2014)Cs422 – Operating Systems Organization Secondary-Storage Disk Structure Disk Scheduling Disk Management Swap-Space Management Disk Reliability…

Slide 1Silberschatz, Galvin and Gagne 2002 13.1 Operating System Concepts Disk Scheduling Disk IO requests are for blocks, by number Block requests come in an ongoing stream…

Slide 1Chapter 12: Secondary-Storage Structure Slide 2 Outline n Cover 12.1 -12.6 n (Magnetic) Disk Structure n Disk Attachment n Disk Scheduling Algorithms l FCFS, SSTF,…

Slide 1Disks Disk Hardware (1) Disk parameters for the original IBM PC floppy disk and a Western Digital WD 18300 hard disk Slide 2 Disk Hardware Physical geometry of a disk…