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SATA Technology

(Serial Advanced Technology Attachment)

By

Zainab Aafia

Roll no. 04075047

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Objectives

What is Sata?

Why Sata was invented?

Differences between Sata and Pata.

Sata Basics.

Benefits of Sata. What is eSata?

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What is Sata?

The serial ATA orSATA computerbus, is a storage-interface for

connecting host bus adapters to mass

storage devices such as hard diskdrives and optical drives.

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Why was Sata designed?

The Serial ATA was designed to replace ParallelATA bus since it was

not able to meet the increased bandwidth and

performance demands of current and future

PC

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Parallel ATA Vs. Serial ATA

Parallel ATA uses a

40 pin ribbon cable

Serial ATA uses a

7 pin connector and cable

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Topology

Parallel ATA Serial ATA

Operating System

Application

1

Application

2

Application

3

Driver

ATA

Standard

Adopter

Disk Disk

Operating System

Application1

Application

2

Application

3

DriverSerial

ATA

Adapter

Disk

Disk

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Serial ATA Features

Low cost Implementation

Point-to-point connectivity

Cyclical Redundancy Checking (CRC) oncommands.

Hot-plug/hot-swap support.

Highly efficient cabling, connectors,backplanes.

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SATA cable connector and port

Cable connector Port

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The 7-pin SATA data cable and the 15-

pin power cable

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Serial ATA Communications Layer

Model

4 Application

3 Transport

2 Link

1 Physical

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Benefits of Serial ATA

SATA is scalable and allows for enhancements to the

computing platform. These include easier integration,

faster performance, and more efficient design.

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History of serial ATA

Generation Standard Year Speed

Serial ATA ATA/ATAPI-

7

2002 150 MB/sec

Serial ATA II ATA/ATAPI-8

2004 300 MB/sec

Serial ATA ATA/ATAPI-9

2007 600 MB/sec

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eSata

eSATA is an external interface technology that grew from the

internal Serial ATA interface. Serial ATA built upon the

original ATA interface that connected hard drives tomotherboards. eSATA delivers improved performance and

ease of use over the older ATA multi-pin interface.

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Applications of eSATA

Game console

home networks

Motherboards

PCs , serversSet top Box PVR/DVR

CD copier, DVD copie

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Conclusion

SATA overcomes the limitations of parallel ATA by providing

thinner cabling, smaller connectors, lower voltage, and point-

to-point signaling. Like its parallel predecessor, SATA will

dominate the desktop market because it offers desktop

reliability, functionality, and performance at a low cost.

The SATA technology roadmap provides scalable

performance and system design improvements that will benefit

end users and system vendors for years to come.