Browse Prior Art Database

Software Design to Support Concurrent Maintenance

IP.com Disclosure Number: IPCOM000107367D
Original Publication Date: 1992-Feb-01
Included in the Prior Art Database: 2005-Mar-21
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Brown, DR: AUTHOR [+6]

Abstract

A software design to enable the removal of redundant power system components without causing a customer outage is disclosed. The software design minimizes the risk of a customer outage while directing the customer engineer through the repair.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 61% of the total text.

Software Design to Support Concurrent Maintenance

       A software design to enable the removal of redundant
power system components without causing a customer outage is
disclosed.  The software design minimizes the risk of a customer
outage while directing the customer engineer through the repair.

      Concurrent maintenance is designed for the repair of the
redundant power system components.  Concurrent maintenance requires
the definition of a new service environment that coexists with the
customer operations on the rest of the system.  A set of repairs and
validations were identified that can be performed in this subset of
the existing Service Mode.  Repairs that can be made in this mode are
identified at the time the request for a repair is created.

      Concurrent maintenance of power system components contains the
following steps (not all steps need be implemented for each repair):
-    Disable checking for redundant hardware failures:  This step
avoids creating invalid repair requests while concurrent maintenance
is being performed.
-    Redundant device availability checking:  This step insures that
conditions are correct to perform concurrent maintenance.  The
remaining redundant devices associated with the component being
repaired must be available and capable of maintaining customer
operation while the repair is in progress.
-    Control of device turn-off/LED (Light-Emitting Diode) prior to
the repair:   This step turns off th...