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Ch14 OS

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Chapter 14: Mass-Storage Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Disk Structure ,[object Object],[object Object],[object Object],[object Object]
Disk Scheduling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Disk Scheduling (Cont.) ,[object Object],[object Object],[object Object],[object Object]
FCFS Illustration shows total head movement of 640 cylinders.
SSTF ,[object Object],[object Object],[object Object]
SSTF (Cont.)
SCAN ,[object Object],[object Object],[object Object]
SCAN (Cont.)
C-SCAN ,[object Object],[object Object],[object Object]
C-SCAN (Cont.)
C-LOOK ,[object Object],[object Object]
C-LOOK (Cont.)
Selecting a Disk-Scheduling Algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Disk Management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MS-DOS Disk Layout
Swap-Space Management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
4.3 BSD Text-Segment Swap Map
4.3 BSD Data-Segment Swap Map
RAID Structure ,[object Object],[object Object]
RAID (cont) ,[object Object],[object Object],[object Object],[object Object],[object Object]
RAID Levels
RAID (0 + 1) and (1 + 0)
Disk Attachment ,[object Object],[object Object],[object Object]
Network-Attached Storage
Storage-Area Network
Stable-Storage Implementation ,[object Object],[object Object],[object Object],[object Object]
Tertiary Storage Devices ,[object Object],[object Object],[object Object]
Removable Disks ,[object Object],[object Object],[object Object]
Removable Disks (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object]
WORM Disks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Tapes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Operating System Issues ,[object Object],[object Object],[object Object],[object Object]
Application Interface ,[object Object],[object Object],[object Object],[object Object],[object Object]
Tape Drives ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
File Naming ,[object Object],[object Object],[object Object]
Hierarchical Storage Management (HSM) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Speed ,[object Object],[object Object],[object Object],[object Object]
Speed (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Reliability ,[object Object],[object Object],[object Object]
Cost ,[object Object],[object Object],[object Object],[object Object]
Price per Megabyte of DRAM, From 1981 to 2000
Price per Megabyte of Magnetic Hard Disk, From 1981 to 2000
Price per Megabyte of a Tape Drive, From 1984-2000

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Ch14 OS