Browse Prior Art Database

Functional Verification of the Disc File Attachment Using a Microprocessor

IP.com Disclosure Number: IPCOM000070075D
Original Publication Date: 1978-Aug-01
Included in the Prior Art Database: 2005-Feb-21

Publishing Venue

IBM

Related People

Authors:
Dixon, JD Henion, RR Tang, PC [+details]

Abstract

On-line fault detection and isolation is difficult to achieve on a complex file attachment card, such as that used with a disc file. The extensive hardware and microcode diagnostics described here help to solve this problem. Self diagnostic testing is provided with electrical isolation from interface cable faults, and background diagnostics are used to enhance reliability.