Internet Small Computer Systems Interface (iSCSI) SCSI Features Update
draft-ietf-storm-iscsi-sam-07

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Document Type Active Internet-Draft (storm WG)
Last updated 2013-06-24
Stream IETF
Intended RFC status Proposed Standard
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Document shepherd David Black
Shepherd write-up Show (last changed 2012-01-12)
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Responsible AD Martin Stiemerling
IESG note David Black (david.black@emc.com) is the document shepherd.
Send notices to storm-chairs@tools.ietf.org, draft-ietf-storm-iscsi-sam@tools.ietf.org
Storage Maintenance (StorM) Working Group           Frederick Knight
Internet Draft                                               NetApp
Intended status: Standards Track                      M. Chadalapaka
Expires: December 2013                                    Microsoft
                                                          June 2013

  Internet Small Computer Systems Interface (iSCSI) SCSI Features
                               Update
                 draft-ietf-storm-iscsi-sam-07.txt

Abstract

  Internet Small Computer Systems Interface (iSCSI) is a SCSI
  transport protocol that maps the SCSI family of protocols onto
  TCP/IP. The iSCSI protocol as specified in [draft-ietf-storm-
  iscsi-cons-xx] (and as previously specified by the combination
  of RFC 3720 and RFC 5048) is based on the SAM-2 (SCSI
  Architecture Model - 2) version of the SCSI family of
  protocols. This document defines enhancements to the iSCSI
  protocol to support certain additional features of the SCSI
  protocol that were defined in SAM-3, SAM-4, and SAM-5.

  This document is a companion document to [draft-ietf-storm-
  iscsi-cons-xx].

     --------------------------------------------------------
     RFC EDITORS NOTE: The above references to [draft-ietf-storm-
     iscsi-cons-xx] should reference the RFC number assigned to
     that document, and this note should be removed.
     --------------------------------------------------------

Status of this Memo

  This Internet-Draft is submitted to IETF in full conformance with
  the provisions of BCP 78 and BCP 79.

  Internet-Drafts are working documents of the Internet Engineering
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  This Internet-Draft will expire December, 2013.

Knight, et al.           Expires December, 2013               [Page 1]

Internet-Draft         iSCSI SCSI Features Update             June 13

Copyright Notice

   Copyright (c) 2013 IETF Trust and the persons identified as the
   document authors. All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
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Table of Contents

1. Introduction.................................................... 3
2. Definitions, Acronyms, and Document Summary..................... 3
  2.1     Definitions ............................................. 3
  2.2     Acronyms ................................................ 3
  2.3     New Semantics ........................................... 3
3. Terminology Mapping............................................. 4
4. New Feature Use................................................. 7
4.1 Negotiation of New Feature Use................................. 7
4.2 Impact on standard INQUIRY data................................ 7
5. SCSI Commands................................................... 8
  5.1     SCSI Command Additions .................................. 8
    5.1.1     Command Priority (byte 2) ........................... 9
  5.2     SCSI Response Additions ................................. 9
    5.2.1     Status Qualifier ................................... 10
    5.2.2     Data Segment - Sense and Response Data Segment ..... 10
6. Task Management Functions...................................... 11
  6.1     Existing Task Management Functions ..................... 11
  6.2     Task Management Function Additions ..................... 12
    6.2.1     LUN field .......................................... 14
    6.2.2     Referenced Task Tag ................................ 14
    6.2.3     RefCmdSN ........................................... 14
  6.3     Task Management Function Responses ..................... 14
    6.3.1     Task Management Function Response Additions ........ 16
  6.4     Task Management Requests Affecting Multiple Tasks ...... 16
7. Login/Text Operational Text Keys............................... 17
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