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 11 Secondary Storage Devices: Magnetic Disks Slide 2 2 Secondary Storage Devices Two major types of storage devices: 1.Direct Access Storage Devices (DASDs) –Magnetic…

Slide 1Overview of Mass Storage Structure Magnetic disks provide bulk of secondary storage of modern computers Disks can be removable Drive attached to computer via I/O bus…

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 1I/O Management and Disk Scheduling Chapter 11 Slide 2 I/O Driver OS module which controls an I/O device hides the device specifics from the above layers in the OS/kernel…

Slide 1SE-292 High Performance Computing File Systems Sathish Vadhiyar Slide 2 2 FILE SYSTEMS What is a file? Storage that continues to exist beyond lifetime of program (persistent)…

Slide 1page 16/3/2014 CSE 30341: Operating Systems Principles Tmpfs/memory file system Use virtual memory to build a file system Will not survive reboots Contents might be…

Slide 1A. Frank - P. Weisberg Operating Systems Disk Scheduling Slide 2 2 A. Frank - P. Weisberg Price per Megabyte of Magnetic Hard Disk, From 1981 to 2004 Slide 3 3 A.…

Slide 1 Slide 2 Background: Magnetic Disks Rotate 60 to 200 times per second Transfer rate: rate at which data flows between drive and computer Positioning time (random-access…