Alright, so you want to know about hard disk performance. But what exactly does
"performance" mean? I'm not trying to get mystical on you. 
It's just that
performance means different things to different people, and in fact there are many
different kinds of "performance". How important a particular aspect of
performance is, depends to a great extent on how you are using your system, and what your
needs are.
This introductory section looks at some of the basic issues involved in understanding
hard disk performance. This includes a discussion of the importance of hard disk
performance, a look at various ways performance can be considered, and a discussion of the
relative importance of various performance specifications and factors.
Next: The Importance of Hard Disk Performance
