IEC ISO/EC14776-263 ISO Edition1.02018-10 INTERNATIONAL STANDARD colour inside Informationtechnology-SmallComputerSystemInterface(ScSl)- Part263:SASProtocolLayer-3(SPL-3) ISO/IEC 14776-263:2018-10(en) THISPUBLICATIONISCOPYRIGHTPROTECTED Copyright@2018ISO/IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no partof thispublicationmaybe reproduced or utilized in anyform orbyanymeans,electronic ormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfrom either IEc or IEC's member National Committee in the country of the requester. If you have any questions about isO/lEc copyright or have an enquiry about obtaining additionai rights to this publication, please contact the address beloworyourlocal IECmemberNationalCommitteeforfurtherinformation. IECCentralOffice Tel.: +41 22 919 02 11 3,rue de Varembé [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland AbouttheIEC International Standardsforall electrical,electronicand relatedtechnologies. AboutIECpublications ThetechnicalcontentofIECpublicationsiskeptunderconstant reviewbytheIEC.Pleasemakesurethatyouhavethe latestedition,acorrigendaoranamendmentmighthavebeenpublished. IECCatalogue-webstore.iec.ch/catalogue Electropedia -www.electropedia.org The stand-alone application for consulting theentire The world's leading online dictionary of electronic and bibliographical information on IEC International Standards, electricaltermscontaining21oootermsanddefinitionsin Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional documents.AvailableforPC,Mac OS,AndroidTablets and languages.AlsoknownastheInternationalElectrotechnical iPad. Vocabulary (IEV) online. IEC publications search-webstore.iec.ch/advsearchform IEc Glossary-std.iec.ch/glossary Theadvanced searchenablestofindIECpublicationsbya 67 000 electrotechnical terminology entries in English and varietyofcriteria(referencenumber,text,technical French extracted from the Terms and Definitions clause of committee,.).Italso gives informationonprojects,replaced iEC publications issued since 2002. Some entries have been and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IECJustPublished-webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published IECCustomerServiceCentre-webstore.iec.ch/csc details all new publications released.Available online and If you wish to give us your feedback on this publication or also once a month by email. needfurtherassistance,pleasecontacttheCustomerService Centre:[email protected]. IEC ISO SO/EC14776-263 Edition1.02018-10 INTERNATIONAL STANDARD colour inside Informationtechnology-SmallComputerSystemInterface(SCSl)- Part263:SASProtocolLayer-3(SPL-3) INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 35.200 ISBN 978-2-8322-6190-3 Warning!Make sure that you obtained this publication from an authorized distributor. ISO/IEC IEC 14776-263:2018 Information technology - Small Computer System Interface (SCSl) - Part 263:SAS Protocol Layer - 3 (SPL-3) Reference ISO/IEC14775-263 ISO/IEC14776-263:2018@ISO/EC 2018 - 3 - INTRODUCTION ScsI standards family.... 42 1 Scope... .44 2 Normative references.... 3 Terms, definitions, symbols, abbreviations, keywords, and conventions.. .46 3.1 Terms and definitions ...... .46 3.2 Symbols and abbreviations ... .75 3.2.1 Abbreviations.. 75 3.2.2 Units... .77 3.2.3 Symbols .. 77 3.2.4 Mathematical operators . 3.3 Keywords.... 3.4 Editorial conventions ... 79 3.5 Numeric and character conventions.. .80 3.5.1 Numeric conventions .. 80 3.5.2 Units of measure.... 3.5.3 Byte encoded character strings conventions .82 3.6 UML notation conventions .... 82 3.6.1Notationconventionsoverview. 3.6.2 Constraint and note conventions .. .82 3.6.3 Class diagram conventions.... .83 3.6.4 Object diagram conventions ... .88 3.7 State machine conventions ..... 3.7.1 State machine conventions overview... .90 3.2 Transitions ..... 91 3.7.3 Messages, request