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The Essential Guide to Serial ATA and SATA Express
book

The Essential Guide to Serial ATA and SATA Express

by David A. Deming
October 2014
Intermediate to advanced content levelIntermediate to advanced
496 pages
15h 38m
English
Auerbach Publications
Content preview from The Essential Guide to Serial ATA and SATA Express
SATA Transport Layer 243
4.3.1 Introduction to NCQ
Accessing media on mass storage devices, such as hard disc drives (HDD), can have a negative impact
on overall system performance.
Unlike other purely electrical components in a modern system, HDDs are still largely mechanical
devices.
Drives are hampered by the inertia of their mechanical components, which effectively limits the
speed of media access and retrieval of data.
Mechanical performance can be physically improved only up to a certain point, and these perfor-
mance improvements usually come at an increased cost of the mechanical components.
However, intelligent internal management of the sequence of mechanical processes can greatly
improve the efficiency of the entire work ...
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Publisher Resources

ISBN: 9781482243314