Browse Prior Art Database

Distributed Service Point Support

IP.com Disclosure Number: IPCOM000099149D
Original Publication Date: 1990-Jan-01
Included in the Prior Art Database: 2005-Mar-14
Document File: 2 page(s) / 77K

Publishing Venue

IBM

Related People

Carlson, BA: AUTHOR

Abstract

One or more Common Service Points (CSPs) are to provide service access from a host or hosts to an subsystem. The structures defined in this disclosure for support of distributed CSPs as follows: Definition of primary and secondary service points. Explicit partitioning of the function supported by a service point. Identification of the asynchronous subsystem flows to be accepted by a service point.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 53% of the total text.

Distributed Service Point Support

       One or more Common Service Points (CSPs) are to provide
service access from a host or hosts to an subsystem.  The structures
defined in this disclosure for support of distributed CSPs as
follows:
   Definition of primary and secondary service
   points.
   Explicit partitioning of the function supported by
   a service point.
   Identification of the asynchronous subsystem flows
   to be accepted by a service point.

      A CSP may be used to provide support to meet system RAS
activation, and configuration requirements function common to more
than one I/O subsystem  As a general class of system components, CSPs
are for the following activities:
   Passing system and/or network level requests to
   I/O subsystems.
   Collecting subsystem information at time of system
   initialization.
   Supporting asynchronous subsystem events.

      The structures herein described provide the capability
distribute the above function across multiple CSPs to a specific I/O
subsystem.

      Note:  Activation is the term used to describe the required to
bring non-baseload code within an I/O to an active state.

      The Assign Service Point command defined below is used
characterize each CSP attaching to an I/O subsystem.  The modifiers
related to partitioning of function are for this command:
 CSP type
        Primary CSP
             Secondary CSP
 Support provided
             RAS/services support only
             Activation support only
             Combined RAS/services and activation support
 Asynchronous flow types supported
        Logging flows
             Status flows
             Activation flows
             Download requests

      Each subsystem must have access to a CSP defined as its CSP.
This CSP may be the only CSP attached to the  Alternatively, multiple
CS...