Hard disk operations are slow because hard disk drives themselves are inherently slow
when compared to other storage devices such as RAM or SRAM cache. A hard disk drive is
composed of mechanical devices??”motors, platters, and actuator arms??”that require a
certain amount of time to complete their tasks.
However, there are some things you can do improve the performance of the drives in
your system. The first aspect you need to consider is the type of drive you use in your
computer. Let??™s talk about this topic next.
Choosing the Best Hardware
Not all hard disk drives are the same. The quality of the drive you choose can make a big
difference in the overall performance of your system. When selecting a drive, you should
keep the following points in mind:
CHAPTER 32 Performance Tuning 644
Tuning Hard Disk Drives 645
32
. Drive interface??”Most desktop systems sold today use Integrated Drive Electronics
(IDE) hard drives. (The latest IDE drives are called Serial Advanced Technology
Attachment [SATA] drives.) These drives are inexpensive to manufacture and can
store a large amount of data, hence their popularity.
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