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Advanced Service Adapter for High-Availability Computer Systems

IP.com Disclosure Number: IPCOM000106758D
Original Publication Date: 1993-Dec-01
Included in the Prior Art Database: 2005-Mar-21
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Goal, PM: AUTHOR [+2]

Abstract

Disclosed is an adapter that allows the traditional features of service processors for high-availability to be provided by another machine which is simultaneously the source of redundancy used to attain high availability. The advantage of this arrangement is that all of the capability of an integrated service processor can be provided, and at the same time the programming environment in which service software is written is the normal application environment of the host machine - with a full-function operating system, debugging facilities, etc. This greatly alleviates difficulties with software development and maintenance for system management and service.

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Advanced Service Adapter for High-Availability Computer Systems

      Disclosed is an adapter that allows the traditional features of
service processors for high-availability to be provided by another
machine which is simultaneously the source of redundancy used to
attain high availability.  The advantage of this arrangement is that
all of the capability of an integrated service processor can be
provided, and at the same time the programming environment in which
service software is written is the normal application environment of
the host machine - with a full-function operating system, debugging
facilities, etc.  This greatly alleviates difficulties with software
development and maintenance for system management and service.  This
is important because maintenance software, usually begun under the
assumption that it is simple, has been shown by experience to always
evolve into a very large development project.  This adapter and its
associated software are independent of the redundancy setup, whether
it is a standalone machine or a ring configuration.

      The service adapter consists of two modules: The service
adapter sensor and the service adapter receiver.  The service adapter
sensor provides access to the facilities normally available to a
service processor;  Power supply control, internal bus monitoring,
temperature monitoring, etc.  Rather than being reported to a
special-purpose service processor, however, this information is sent
over a cable to the...