Reference Guide - Hard Disk Drives  A Brief History of the Hard Disk Drive Construction and Operation of the Hard Disk Drive Hard Disk Geometry and Low-Level Data Structures Hard Disk Performance, Quality and Reliability Hard Disk Performance Hard Disk General Performance Issues Hard Disk Performance Measurement Hard Disk Performance Specifications Hard Disk Internal Performance Factors Mechanical Design Factors Data Recording and Encoding Factors Controller and Cache Factors Controller Circuitry and Algorithms Cache Size and Type Write Caching Policy Thermal Recalibration Hard Disk External Performance Factors Hard Disk Quality and Reliability Redundant Arrays of Inexpensive Disks (RAID) Hard Disk BIOS and Capacity Factors Hard Disk Interfaces and Configuration Hard Disk Logical Structures and File Systems Author: Charles M. Kozierok  There are a few performance factors that are related to the hard disk's integrated controller, and its internal buffer. Since these parts of the hard disk aren't typically the most important in terms of their influence on overall performance, this discussion is relatively brief. However, these components do have an impact on performance. I also want to point out that some of the aspects of how the cache functions are more important than just its size, which it sometimes seems is all that most people focus on today... Next: Controller Circuitry and Algorithms

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