99-234r0 - SMU Note for SPC-2

Ralph Weber ralphoweber at CompuServe.COM
Sat Aug 21 06:18:04 PDT 1999

* From the T10 Reflector (t10 at t10.org), posted by:
* Ralph Weber <ralphoweber at compuserve.com>
A proposal for consideration at the September meetings has
been placed on the T10 FTP site as:

< ftp://ftp.t10.org/t10/document.99/99-234r0.pdf >

The text of the proposal is as follows:

Doc:  T10/99-234r0
Date: 18 August 1999
To:   T10 Technical Committee
From: Ralph Weber, LSI Logic Alternate Member of T10
Subj: SMU Note for SPC-2

In SAM-2 revision 11 note 2 describes changes required in SPC-2 to
coordinate with the agreed description of SCSI Multi-port Units.
This proposal requests that the changes be incorporated in SPC-2.
The changes are as follows.

Add the following definitions:

    3.1.2048 SCSI multi-port unit: A device that has multiple service
    delivery ports or responds to multiple SCSI device identifiers.
    See SAM-2.

    3.1.4096 Service delivery port: A device-resident interface used
    by the application client, device server or task manager to enter
    and retrieve requests and responses from the service delivery
    subsystem.  See SAM-2.

Add the following acronym:

    SMU SCSI Multi-port Unit (see 3.1.2048)

Add the following after table 168 (SPC-2 revision 11) "Association":

    Logical units within a SCSI multi-port unit shall include at
    least one Identification descriptor containing an ASSOCIATION
    value of zero and having identical contents in all descriptor
    fields regardless of the service delivery port from which the VPD
    page contents are requested.

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