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PART I Introduction

CHAPTER 2 Disk Structure and Partitions

Modern disk drives include a CPU and memory to control the disk operation. The drive can accept many simultaneous requests, sort them, and process them concurrently. This minimizes the amount of head movement required to find all the requested data. It stores the data for all these commands in its own memory and can pre-fetch data that it expects you to ask for next, when it's not too busy with current requests.

2.1 - Disk Structure and Partitions
2.2 - Disk Partitions

Unix System Administration - 8 AUG 1996
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