Internet Small Computer Systems Interface (iSCSI) SCSI Features Update
draft-ietf-storm-iscsi-sam-08

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Document Type Active Internet-Draft (storm WG)
Last updated 2013-08-22 (latest revision 2013-07-30)
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Send notices to storm-chairs@tools.ietf.org, draft-ietf-storm-iscsi-sam@tools.ietf.org
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Storage Maintenance (StorM) Working Group          Frederick Knight
Internet Draft                                              NetApp
Intended status: Standards Track                     M. Chadalapaka
Expires: January 2014                                    Microsoft
                                                         July 2013

  Internet Small Computer Systems Interface (iSCSI) SCSI Features
                               Update
                 draft-ietf-storm-iscsi-sam-08.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 RFCxxx (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 RFCxxx.

     --------------------------------------------------------
     RFC EDITORS NOTE: The above two references to RFCxxx should
     reference the RFC number assigned to the draft-ietf-storm-
     iscsi-cons-xx 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
  Task Force (IETF), its areas, and its working groups. Note that
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  Drafts.

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  The list of Internet-Draft Shadow Directories can be accessed at
  http://www.ietf.org/shadow.html.

  This Internet-Draft will expire January, 2014.

Knight, et al.           Expires January, 2014               [Page 1]

Internet-Draft         iSCSI SCSI Features Update             July 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
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document. Please review these documents
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   without warranty as described in the Simplified BSD License.

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 .............................. 10
    5.2.1     Status Qualifier ................................. 11
    5.2.2     Data Segment - Sense and Response Data Segment ... 11
6. Task Management Functions.................................... 12
  6.1     Existing Task Management Functions ................... 12
  6.2     Task Management Function Additions ................... 13
    6.2.1     LUN field ........................................ 14
    6.2.2     Referenced Task Tag .............................. 14
    6.2.3     RefCmdSN ......................................... 15
  6.3     Task Management Function Responses ................... 16
    6.3.1     Task Management Function Response Additions ...... 17
  6.4     Task Management Requests Affecting Multiple Tasks .... 18
7. Login/Text Operational Text Keys............................. 18
  7.1     New Operational Text Keys ............................ 18
    7.1.1     iSCSIProtocolLevel ............................... 18
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