sp26-cs537 cs537
OSTEP Ch. 37 — Hard Disk Drives OSTEP Ch. 37 — Hard Disk Drives
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CRUX: How to store and access data on disk
37.1 The Interface
37.2 Basic Geometry
37.3 A Simple Disk Drive
Single-track latency: the rotational delay
Multiple tracks: seek time
Some other details
37.4 I/O Time: Doing the Math
37.5 Disk Scheduling
SSTF: Shortest Seek Time First
Elevator (SCAN / C-SCAN)
SPTF: Shortest Positioning Time First
Other scheduling issues
37.6 Summary
Key terms
Study questions