Library » Tutorials

SAS General Overview

SAS General Overview - 1.3MB

General marketing background, followed by the key topics from each layer.

SAS Architecture

SAS Architecture - 348KB

Covers the SAS object model, physical links and phys, ports, SAS devices, expander devices, domains, edge expander device sets, pathways, connections, SAS address, reset sequences, state machines, transmit data path, and describes the expander device model.

SAS Physical Layer

SAS Physical Layer - 256KB

Describes the lowest layer of SAS, covering passive interconnects (cables and connectors) and electrical characteristics.

SAS Phy Layer

SAS Phy Layer - 256KB

Describes 8b10b coding, OOB signaling, and speed negotiation.

SAS Link Layer - Part 1

SAS Link Layer - Part 1 - 364 BK

Covers primitives, clock skew management, CRC, scrambling, bit order, address frames, identification and hard reset sequences, and connections.

SAS Link Layer - Part 2

SAS Link Layer Part 2 - 344 BK

Covers arbitration fairness, deadlocks and livelocks, rate matching, SSP (Serial SCSI Protocol) frame transmission, STP (Serial ATA Tunneling Protocol) and Serial ATA frame transmission, and SMP (Serial Management Protocol) frame transmission.

SAS SCSI Upper Layers

SAS SCSI Upper Layers - 308 BK

Covers SCSI standards organization, basic SCSI architecture, important SCSI commands and status codes, important task management functions, SCSI transport protocol services, the SSP (Serial SCSI Protocol) transport layer, SAS-specific mode pages, SAS-specific log pages, and power conditions/spinup controls.

SAS ATA Upper Layers

SAS ATA Upper Layers- 228 BK

Covers basic ATA architecture, the ATA task file, ATA commands, Serial ATA frames, and compares ATAPI (ATA Packet Interface) vs. native SCSI.

SAS Management Upper Layers and Port Layer

SAS Management Upper Layers and Port Layer - 208KB

Covers the SMP transport layer and all the SMP functions, and concludes with a look at the port layer (which ties the transport layers to the link layers).

SAS Comparison to Fibre Channel FCP

SAS_FCP_comparison_public.pdf - 116KB

Covers the SMP transport layer and all the SMP functions, and concludes with a look at the port layer (which ties the transport layers to the link layers).

SAS Quiz Questions & Answers

SAS Quiz Questions - 76KB
SAS Quiz Answers - 86KB

A few fill-in-the-blank slides that review some key concepts.