SAS (Serial Attached SCSI) is the serial storage interface that has been designed to replace and upgrade SCSI, by far the most popular storage interface for high-performance systems for many years. Retaining backward compatibility with the millions of lines of code written to support SCSI devices, SAS incorporates recent advances in high-speed serial design to provide better performance, better reliability and enhanced capabilities, all at a lower cost. SAS will be a significant part of many future high-performance storage systems, and hardware designers, system validation engineers, device driver developers and others working in this area will need a working knowledge of it. SAS Storage Architecture provides a comprehensive guide to the SAS standard. The book contains descriptions and numerous examples of the concepts presented, using the same building block approach as other MindShare offerings. This book details important concepts relating to the design and implementation of storage networks. Specific topics of interest include: SATA Compatibility Expander devices Discovery Process Connection protocols Arbitration of competing connection requests Flow Control protocols ACK/NAK protocol Primitives construction and uses Frames format, definition, used of each field Error checking mechanisms Description of responsibilities for each layer: Application layer mode and log pages Transport Layer frame construction Port Layer call center model Link Layer establish and maintain connections Phy Layer OOB, Initialization, and Reset Physical Layer connectors and cables Serial Support serial transmission support requirements The future of SAS competition with SATA and Fibre Channel in the server marketplace

SAS Storage Architecture: Serial Attached SCSI

MindShare

mike-jackson

MindShare Press

The SATA (Serial ATA) interface is intended to expand and eventually replace the parallel ATA interface that has been the standard connection for hard drives and CD-ROM/DVD drives in Personal Computers for nearly twenty years. SATA, a high-speed serial version of ATA, is designed to maintain compatibility with software written for the standard ATA implementation, thus easing the transition to SATA. New advances in SATA provide new capabilities such as Native Command Queuing that improve overall drive performance and greater reliability. In addition, the latest version of SATA (called SATA II) adds new features such as higher transfer rates, Port Selectors, Port Multipliers, and enclosure services, making it easier to implement low cost, high capacity, storage subsystems for server implementations. This book provides essential information for Systems Engineers, System Validation Engineers, Hardware Designers, and Software Developers. o Serial ATA Storage Technology provides ATA background information necessary to understand the Serial ATA implementation. This book provides detailed information regarding the serial protocol, commands, and electrical interface. A tutorial approach is taken to facilitate thorough understanding, using numerous illustrations, tables and examples. The text is also designed to provide easy to access valuable reference information

SATA Storage Technology: Serial ATA

Don Anderson

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Books by MindShare

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SAS Storage Architecture: Serial Attached SCSI

SATA Storage Technology: Serial ATA