Internet Small Computer Systems Interface (iSCSI) SCSI Features Update
draft-ietf-storm-iscsi-sam-05

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Document Type Active Internet-Draft (storm WG)
Last updated 2012-06-13 (latest revision 2011-12-13)
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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: June 2012                                        Microsoft
                                                      December 2011

  Internet Small Computer Systems Interface (iSCSI) SCSI Features
                               Update
                 draft-ietf-storm-iscsi-sam-05.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.

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   This Internet-Draft will expire June, 2012.

Knight, et al.             Expires June, 2012                [Page 1]

Internet-Draft           iSCSI SCSI Features Update       December 11

Copyright Notice

     Copyright (c) 2011 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) .......................... 8
  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..................................... 10
  6.1     Existing Task Management Functions .................... 10
  6.2     Task Management Function Additions .................... 10
    6.2.1     LUN field ......................................... 12
    6.2.2     Referenced Task Tag ............................... 12
    6.2.3     RefCmdSN .......................................... 12
  6.3     Task Management Function Responses .................... 13
    6.3.1     Task Management Function Response Additions ....... 14
  6.4     Task Management Requests Affecting Multiple Tasks ..... 14
7. Login/Text Operational Text Keys.............................. 15
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