Browse Prior Art Database

Error Information Retention for Failure Analysis

IP.com Disclosure Number: IPCOM000107977D
Original Publication Date: 1992-Apr-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 2 page(s) / 76K

Publishing Venue

IBM

Related People

Johnson, DA: AUTHOR [+4]

Abstract

Described is a method by which data relating to a failure of a system component, such as an I/O Processor, is stored permanently within the hardware of that unit. The data thus maintained in the hardware can later be extracted, either after the card has been returned to the manufacturing site or via software retrieval in the field. Since this data is gathered automatically and kept with the part that was removed from the system, the data is reliable. With reliable data available, the opportunity to take corrective actions is improved.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 55% of the total text.

Error Information Retention for Failure Analysis

       Described is a method by which data relating to a failure
of a system component, such as an I/O Processor, is stored
permanently within the hardware of that unit.  The data thus
maintained in the hardware can later be extracted, either after the
card has been returned to the manufacturing site or via software
retrieval in the field.  Since this data is gathered automatically
and kept with the part that was removed from the system, the data is
reliable.  With reliable data available, the opportunity to take
corrective actions is improved.

      Quality improvement of systems and components is difficult when
the data is incomplete or unreliable. Service delivery processes
include feedback from field replacements, but because these are
manual processes, the data is often inaccurate and incomplete.

      With reliable data, the production and design of a system
component can be improved, and defective processes detected and
corrected with greater efficiency.

      Many unit assemblies contain a small amount of non-volatile
memory, used either for code patch, storage of vital operating
parameters, or both.  Non-volatile memory can be written during
normal operation and will retain its contents even if power is cycled
or the unit is removed from the system.

      The use of non-volatile memory technology is relatively
dependent on newer technology.  Only recently have non-volatile
memory storage...