DOCSLIB.ORG

Serial Attached SCSI (SAS) Interface Manual

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Serial Attached SCSI (SAS) Interface Manual Users Guide Serial Attached SCSI (SAS) Interface Manual Users Guide Serial Attached SCSI (SAS) Interface Manual ©2003, 2004, 2005, 2006 Seagate Technology LLC All rights reserved Publication number: 100293071, Rev. B May 2006 Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Technology LLC. SeaTools, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are either registered trademarks or trade- marks of Seagate Technology LLC. Other product names are registered trademarks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC. Revision status summary sheet Revision Date Writers/Engineers Notes Rev. A 11/11/04 J. Coomes Initial release. Rev. B 05/07/06 C. Chalupa, J. Coomes, G. Houlder All. Contents 1.0 Interface requirements. 1 1.1 Acknowledgements . 1 1.2 How to use this interface manual . 1 1.2.1 Scope . 2 1.2.2 Applicable specifications . 2 1.2.3 Other references . 3 1.3 General interface description. 3 1.3.1 Introduction to Serial Attached SCSI Interface (SAS) . 3 1.3.2 The SAS interface . 3 1.3.3 Glossary . 5 1.3.4 Keywords . 16 1.4 Physical interface characteristics. 17 1.5 Bit and byte ordering . 17 2.0 General . 19 2.1 Architecture . 19 2.1.1 Architecture overview . 19 2.1.2 Physical links and phys . 19 2.1.3 Ports (narrow ports and wide ports) . 20 2.1.4 SAS devices . 21 2.1.5 Expander devices (edge expander devices and fanout expander devices) . 22 2.1.6 Service delivery subsystem. 23 2.1.7 Domains . 23 2.1.8 Expander device topologies . 24 2.1.8.1 Expander device topology overview . 24 2.1.8.2 Edge expander device set . .24 2.1.8.3 Expander device topologies. .25 2.1.9 Pathways. 26 2.1.10 Connections . 27 2.2 Names and identifiers . 30 2.2.1 Names and identifiers . 30 2.2.2 SAS addresses . 30 2.2.3 Hashed SAS address . 31 2.2.4 Device names . 31 2.2.5 Port identifiers . 31 2.2.6 Phy identifiers . 31 2.3 Resets . 32 2.3.1 Reset overview . 32 2.3.2 Hard reset . 32 2.4 I_T nexus loss . 33 3.0 Phy layer . 35 3.1 Phy layer overview . 35 3.2 Encoding (8b10b) . 35 3.2.1 Encoding overview . 35 3.2.2 8b10b coding introduction . 36 3.3 Encoding and decoding . 36 3.4 Out of band (OOB) signals . 37 3.5 Phy reset sequences . 42 3.5.1 Phy reset sequences overview . 42 3.5.2 SAS to SAS phy reset sequence . 42 3.5.2.1 SAS OOB sequence . .42 3.5.2.2 SAS speed negotiation sequence . 44 3.5.3 Phy reset sequence after devices are attached . 47 3.6 DWS (dword synchronization) . 49 3.6.1 Acquiring DWS . 49 3.6.2 Losing DWS . ..
Load more

Recommended publications
  • Scaling Enterprise Storage with SAS Hard Drives
    Whitepaper | November 2007 Scaling Enterprise Storage with SAS Hard Drives Introduction Data center workloads have increased exponentially in recent years, requiring IT managers to find new ways of scaling their enterprise storage resources in a way that is both highly reliable and cost-effective. With the introduction of complementary serial interface technologies, IT managers now have the flexibility to deploy either high performance SAS drives or cost-effective Serial ATA (SATA) drives in a Serial Attached SCSI (SAS) storage environment. Hardware compatibility between the new interfaces will provide unprecedented design flexibility for server and storage subsystem deployments. SAS was designed to be the successor to parallel SCSI, which has been used effectively as an enterprise storage interface for more than 20 years. SAS supports the SCSI com- mand set and protocol, maintaining compatibility with the last 20 years of application software investment. SAS will support faster data transfer rates and more devices per controller, as well as reduce the size and complexity of the cables and connectors (thus enabling smaller, more densely-packed disk arrays). SAS is a point-to-point serial architecture, meaning that each drive has a dedicated connection to the host. Eliminating the shared (parallel) bus bottleneck results in higher overall performance because the host will deliver full bandwidth to each individual hard drive. These dedicated, point-to-point connections provide full-duplex connectivity at 3Gb/s for superior performance. SAS is a dual-port interface that provides two separate data paths into the drive. This delivers higher levels of performance and eliminates the “single point of failure” that is a drawback of the current parallel SCSI inter- face.
    [Show full text]
  • SAS Storage Architecture: Serial Attached SCSI, 2005, Mike Jackson, 0977087808, 9780977087808, Mindshare Press, 2005
    SAS Storage Architecture: Serial Attached SCSI, 2005, Mike Jackson, 0977087808, 9780977087808, MindShare Press, 2005 DOWNLOAD http://bit.ly/1zNQCoA http://www.barnesandnoble.com/s/?store=book&keyword=SAS+Storage+Architecture%3A+Serial+Attached+SCSI 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
    [Show full text]
  • Fibre Channel Interface
    Fibre Channel Interface Fibre Channel Interface ©2006, Seagate Technology LLC All rights reserved Publication number: 100293070, Rev. A March 2006 Seagate and Seagate Technology are registered trademarks of Seagate Technology LLC. SeaTools, SeaFONE, SeaBOARD, SeaTDD, and the Wave logo are either registered trade- marks or trademarks of Seagate Technology LLC. Other product names are registered trade- marks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission of Seagate Technol- ogy LLC. Revision status summary sheet Revision Date Writer/Engineer Sheets Affected A 03/08/06 C. Chalupa/J. Coomes All iv Fibre Channel Interface Manual, Rev. A Contents 1.0 Contents . i 2.0 Publication overview . 1 2.1 Acknowledgements . 1 2.2 How to use this manual . 1 2.3 General interface description. 2 3.0 Introduction to Fibre Channel . 3 3.1 General information . 3 3.2 Channels vs. networks . 4 3.3 The advantages of Fibre Channel . 4 4.0 Fibre Channel standards . 5 4.1 General information . 6 4.1.1 Description of Fibre Channel levels . 6 4.1.1.1 FC-0 . .6 4.1.1.2 FC-1 . .6 4.1.1.3 FC-1.5 . .6 4.1.1.4 FC-2 . .6 4.1.1.5 FC-3 . .6 4.1.1.6 FC-4 . .7 4.1.2 Relationship between the levels. 7 4.1.3 Topology standards . 7 4.1.4 FC Implementation Guide (FC-IG) . 7 4.1.5 Applicable Documents .
    [Show full text]
  • Crack Iscsi Cake 197
    1 / 2 Crack Iscsi Cake 197 Open-E DSS V7 increases iSCSI target efficiency by supporting ... drive serial number and the drive serial number information from the robotic library), ... Open-E DSS V7 MANUAL www.open-e.com. 197 work in that User .... nuance pdf converter professional 8 crack keygen · avunu telugu movie english subtitles download torrent · Veerappan ... Crack Iscsi Cake 197.. Crack Iscsi Cake 1.97. Download. Crack Iscsi Cake 1.97. ISCSI...CAKE...1.8.0418...CRACK.. Merci..de..tlcharger..iSCSI.. Contribute to Niarfe/hack-recommender development by creating an account on GitHub. ... 197, ETAP. 198, EtQ. 199, Cincom Eloquence ... 1022, Adobe Target. 1023, Adobe ... 3485, Dell EqualLogic PS6500E iSCSI SAN Storage. 3486, Dell .... iscsi cake, iscsi cake crack, iscsi cake 1.8 crack full, iscsi cake 1.97 full, iscsi cake tutorial, iscsi cake 1.9 crack, iscsi cake 1.9 full, iscsi cake .... Crack Iscsi Cake 197 iscsi cake, iscsi cake 1.8 crack full, iscsi cake 1.9, iscsi cake full, iscsi cake 1.9 expired, iscsi cake crack, iscsi cake 1.9 full, .... Crack Iscsi Cake 197. June 16 2020 0. iscsi cake, iscsi cake 1.8 crack full, iscsi cake full, iscsi cake 1.8 serial number, iscsi cake 1.9, iscsi cake crack, iscsi cake ... Serial interface and protocol. Standard PC mice once used the RS-232C serial port via a D-subminiature connector, which provided power to run the mouse's .... Avira Phantom VPN Pro v3.7.1.26756 Final Crack (2018) .rar · fb limiter pro cracked full version ... Crack Iscsi Cake 197 · Hoshi Wo Katta Hi ...
    [Show full text]
  • HP Proliant G6 Intel Xeon Bladesystem C-Class Server Blades
    Technologies in HP ProLiant G6 c-Class server blades with Intel® Xeon® processors technology brief Abstract.............................................................................................................................................. 2 ProLiant c-Class server blade architecture................................................................................................ 2 Processor technologies ......................................................................................................................... 3 Multi-level caches............................................................................................................................. 3 QuickPath Interconnect controller ....................................................................................................... 4 Hyper-Threading .............................................................................................................................. 4 Turbo Boost technology..................................................................................................................... 5 Thermal Logic technologies ................................................................................................................... 5 Processor socket technology.................................................................................................................. 6 Memory technologies ........................................................................................................................... 6 I/O technologies
    [Show full text]
  • SAS Enters the Mainstream Although Adoption of Serial Attached SCSI
    SAS enters the mainstream By the InfoStor staff http://www.infostor.com/articles/article_display.cfm?Section=ARTCL&C=Newst&ARTICLE_ID=295373&KEYWORDS=Adaptec&p=23 Although adoption of Serial Attached SCSI (SAS) is still in the infancy stages, the next 12 months bode well for proponents of the relatively new disk drive/array interface. For example, in a recent InfoStor QuickVote reader poll, 27% of the respondents said SAS will account for the majority of their disk drive purchases over the next year, although Serial ATA (SATA) topped the list with 37% of the respondents, followed by Fibre Channel with 32%. Only 4% of the poll respondents cited the aging parallel SCSI interface (see figure). However, surveys of InfoStor’s readers are skewed by the fact that almost half of our readers are in the channel (primarily VARs and systems/storage integrators), and the channel moves faster than end users in terms of adopting (or at least kicking the tires on) new technologies such as serial interfaces. Click here to enlarge image To get a more accurate view of the pace of adoption of serial interfaces such as SAS, consider market research predictions from firms such as Gartner and International Data Corp. (IDC). Yet even in those firms’ predictions, SAS is coming on surprisingly strong, mostly at the expense of its parallel SCSI predecessor. For example, Gartner predicts SAS disk drives will account for 16.4% of all multi-user drive shipments this year and will garner almost 45% of the overall market in 2009 (see figure on p. 18).
    [Show full text]
  • AMD Opteron™ Shared Memory MP Systems Ardsher Ahmed Pat Conway Bill Hughes Fred Weber Agenda
    AMD Opteron™ Shared Memory MP Systems Ardsher Ahmed Pat Conway Bill Hughes Fred Weber Agenda • Glueless MP systems • MP system configurations • Cache coherence protocol • 2-, 4-, and 8-way MP system topologies • Beyond 8-way MP systems September 22, 2002 Hot Chips 14 2 AMD Opteron™ Processor Architecture DRAM 5.3 GB/s 128-bit MCT CPU SRQ XBAR HT HT HT 3.2 GB/s per direction 3.2 GB/s per direction @ 0+]'DWD5DWH @ 0+]'DWD5DWH 3.2 GB/s per direction @ 0+]'DWD5DWH HT = HyperTransport™ technology September 22, 2002 Hot Chips 14 3 Glueless MP System DRAM DRAM MCT CPU MCT CPU SRQ SRQ non-Coherent HyperTransport™ Link XBAR XBAR HT I/O I/O I/O HT cHT cHT cHT cHT Coherent HyperTransport ™ cHT cHT I/O I/O HT HT cHT cHT XBAR XBAR CPU MCT CPU MCT SRQ SRQ HT = HyperTransport™ technology DRAM DRAM September 22, 2002 Hot Chips 14 4 MP Architecture • Programming model of memory is effectively SMP – Physical address space is flat and fully coherent – Far to near memory latency ratio in a 4P system is designed to be < 1.4 – Latency difference between remote and local memory is comparable to the difference between a DRAM page hit and a DRAM page conflict – DRAM locations can be contiguous or interleaved – No processor affinity or NUMA tuning required • MP support designed in from the beginning – Lower overall chip count results in outstanding system reliability – Memory Controller and XBAR operate at the processor frequency – Memory subsystem scale with frequency improvements September 22, 2002 Hot Chips 14 5 MP Architecture (contd.) • Integrated Memory Controller
    [Show full text]
  • Architecture and Application of Infortrend Infiniband Design
    Architecture and Application of Infortrend InfiniBand Design Application Note Version: 1.3 Updated: October, 2018 Abstract: Focusing on the architecture and application of InfiniBand technology, this document introduces the architecture, application scenarios and highlights of the Infortrend InfiniBand host module design. Infortrend InfiniBand Host Module Design Contents Contents ............................................................................................................................................. 2 What is InfiniBand .............................................................................................................................. 3 Overview and Background .................................................................................................... 3 Basics of InfiniBand .............................................................................................................. 3 Hardware ....................................................................................................................... 3 Architecture ................................................................................................................... 4 Application Scenarios for HPC ............................................................................................................. 5 Current Limitation .............................................................................................................................. 6 Infortrend InfiniBand Host Board Design ............................................................................................
    [Show full text]
  • Performance and Innovation of Storage Advances Through SCSI Express © 2014 Storage Networking Industry Association
    Performance and Innovation of Storage PRESENTATION TITLE GOES HERE Advances through SCSI Express Marty Czekalski President, SCSI Trade Association - Emerging Interface and Architecture Program Manager, Seagate Technology Greg McSorley Vice President, SCSI Trade Association Technical Business Development Manager, Amphenol SNIA Legal Notice The material contained in this tutorial is copyrighted by the SNIA unless otherwise noted. Member companies and individual members may use this material in presentations and literature under the following conditions: Any slide or slides used must be reproduced in their entirety without modification The SNIA must be acknowledged as the source of any material used in the body of any document containing material from these presentations. This presentation is a project of the SNIA Education Committee. Neither the author nor the presenter is an attorney and nothing in this presentation is intended to be, or should be construed as legal advice or an opinion of counsel. If you need legal advice or a legal opinion please contact your attorney. The information presented herein represents the author's personal opinion and current understanding of the relevant issues involved. The author, the presenter, and the SNIA do not assume any responsibility or liability for damages arising out of any reliance on or use of this information. NO WARRANTIES, EXPRESS OR IMPLIED. USE AT YOUR OWN RISK. Performance and Innovation of Storage Advances through SCSI Express © 2014 Storage Networking Industry Association. All Rights Reserved. 2 Abstract Performance and Innovation of Storage Advances through SCSI Express SCSI Express represents the natural evolution of enterprise storage technology building upon decades of customer and industry experience.
    [Show full text]
  • M.2 2280 Sata Ssd
    Product Datasheet Version 1 M.2 2280 SATA SSD Product Name: I M 2 S 3 3 3 8 Capacity: 6 4 G B 、 1 2 8 GB、 2 5 6 G B 、 5 1 2 G B 、 1 T B I Revision History Revision Date Description Editor 0 May.7. 2019 Initial release Terry Chu 1 Oct. 18. 2019 Change to IA format Steven Wang 2 Apr. 24. 2020 Add DWPD Austin Lee II Table of Contents 1.0 General Description ........................................................................................................................... 2 2.0 Mechanical Specification ................................................................................................................. 3 2.1 Physical dimensions and Weight ........................................................................................... 3 2.2 Product Dimensions .................................................................................................................. 3 3.0 Product Specification ........................................................................................................................ 5 3.1 Interface and configuration ..................................................................................................... 5 3.2 Capacity ........................................................................................................................................ 5 3.3 Performance ................................................................................................................................ 5 3.4 Electrical ......................................................................................................................................
    [Show full text]
  • Chapter 6 MIDI, SCSI, and Sample Dumps
    MIDI, SCSI, and Sample Dumps SCSI Guidelines Chapter 6 MIDI, SCSI, and Sample Dumps SCSI Guidelines The following sections contain information on using SCSI with the K2600, as well as speciÞc sections dealing with the Mac and the K2600. Disk Size Restrictions The K2600 accepts hard disks with up to 2 gigabytes of storage capacity. If you attach an unformatted disk that is larger than 2 gigabytes, the K2600 will still be able to format it, but only as a 2 gigabyte disk. If you attach a formatted disk larger than 2 gigabytes, the K2600 will not be able to work with it; you could reformat the disk, but thisÑof courseÑwould erase the disk entirely. Configuring a SCSI Chain Here are some basic guidelines to follow when conÞguring a SCSI chain: 1. According to the SCSI SpeciÞcation, the maximum SCSI cable length is 6 meters (19.69 feet). You should limit the total length of all SCSI cables connecting external SCSI devices with Kurzweil products to 17 feet (5.2 meters). To calculate the total SCSI cable length, add the lengths of all SCSI cables, plus eight inches for every external SCSI device connected. No single cable length in the chain should exceed eight feet. 2. The Þrst and last devices in the chain must be terminated. There is a single exception to this rule, however. A K2600 with an internal hard drive and no external SCSI devices attached should have its termination disabled. If you later add an external device to the K2600Õs SCSI chain, you must enable the K2600Õs termination at that time.
    [Show full text]
  • 2.5In USB 2.0 One Button Backup SATA External Hard Drive Enclosure
    2.5in USB 2.0 One Button Backup SATA External Hard Drive Enclosure Product ID: SAT2510BU2B This 2.5in External SATA Hard Drive Enclosure connects to a host computer through USB 2.0, allowing you to turn any standard 2.5in Serial ATA hard drive (SATA, SATA II, SATA III) into a highly portable storage solution. Large capacity drives (tested with up to 1TB) can be used to greatly enhance your computer's storage/backup capabilities. The SATA hard drive enclosure offers One Button Backup, allowing you to automate backups of data from the host computer to the external hard drive at the touch of a button. The external hard drive enclosure features a slim, lightweight design as well as an attractive black metal casing. The USB/SATA enclosure also includes a USB Y-cable that can be used to ensure sufficient power for higher capacity/higher power consumption drives. www.startech.com 1 800 265 1844 Certifications, Reports Applications and Compatibility • Create a fast, ultra portable external storage solution for laptops or netbooks • Add-on storage to almost any USB enabled system • Backup data to an external storage device • Retrieve data from old laptop drive, or turn the unused drive into additional external storage space Features • Screwless drive installation and assembly • Powered directly from the USB port • High Speed USB 2.0 compliant host interface, with support for transfer rates up to 480 Mbps • Compatible with SATA revision 1/2/3 (1.5/3.0/6.0 Gbps) drives • Supports 2.5" form factor hard drives (HDD) and solid state drives (SSD) up
    [Show full text]