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4 Day Course
Serial Attached SCSI (SAS 2.1) is the logical evolution of SCSI. SAS addresses enterprise storage requirements for larger capacity, higher density, enhanced security, more scalability and easier accessibility, while offering the compatibility, reliability, performance and manageability of Parallel SCSI. Serial ATA (SATA) has become the dominate disk drive interface on the desktop and for new applications like “near line” storage. This 4-day seminar provides students with the most current SAS 2.1 and SATA 3.0 industry developments, directions and data necessary to be fully informed and abreast of the latest advances in these exciting technologies. Class participants will examine the development of SAS 2.1 and SATA 3.0 in storage solutions. Students will investigate the ability of these technologies to offer increased customer choice by allowing a single infrastructure to support both enterprise class SAS 2.1 drives and higher capacity SATA 3.0 drives for cost-sensitive applications. Students will examine both of these interfaces in detail at all architecture levels. This course is ideal for those seeking a detailed understanding of these new technologies, their workings, and the impact they will have within the industry.
Our demonstrations use a protocol analyzer, host bus adapter, expanders, SATA and SAS disk drives to fully explore the SATA and SAS transports and how they relate to the SCSI and ATA command sets. Emphasis will be placed on the initialization steps of Identify, Discovery, Expander Operations and on the operational steps of Open Address, Information Transfer and Closing. SAS Protocols demonstrated are SSP, SMP and STP. This demonstration class uses real equipment to ensure real learning.
Serial ATA Introduction
Parallel ATA Success- Why Change?
Performance Issues
New Form Factor & Power Requirements
Connector & Cabling Comparisons
Architecture Limitations
SATA Development
Serial ATA Overview
ATA Overview
Command Block Registers
Addressing
ATA Standards
Parallel & Serial ATA Concepts
Transport Layer Overview
Frame Structure Overview
Link Layer Overview
Physical Layer Overview
Technical Overview of Serial ATA
Serial Interfaces
Frames & Primitives
Transport Layer Details/Functions
Register-Host to Device Sample
Link Layer Details/Functions
8B/10B Encoding Basics
Primitives
CRC
PHY
SATA Signals
Command Examples
PIO Data
Bringing SATA to Market
System Cost of SATA
SATA Working Group Roadmap
Other Interface Competitors
SATA Migration in the Aftermarket
New Applications for SATA
Conclusions
SAS 2.1 Overview
Why Serial Attached SCSI?
Protocols SAS, STP, SSP, SMP
Initiators, Targets
Expanders
Links (Physical vs. Logical)
Ports (1x and 4x)
Physical Layer
Link Layer
Transport Layer
Logical Operation Overview
SAS
STP, SSP, SMP
Physical and PHY Layers
8b/10b Encoding
OOB
Resets
Physical Layer Functions
Connectors/Cables
Single port
Dual port
1x wide
4x wide
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Link Layer
Link Layer functions
Primitives and usage
Address frames and usage
Link initialization
Power management
Loopback tests
Physical vs. logical links
Scrambling
SSP Connections
STP Connections
Error handling
Transport Layer
Transport Layer Functions
SSP Overview
Frames/IU's
IU Sequences
IU Details
STP Overview
Flow
Initiator to expander
Expander to target
Flow control
Buffering
SMP Overview
Frames
Flow control
Functions
State Machines
Descriptions & Operations
SSP Transport & Link
SMP Transport & Link
SAS Link
Expanders
Overview
Discovery
Power Management
STP Multi-initiator
Expander communication
Multiple expanders
Errors
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