Browse Prior Art Database

Programmable Module and Circuit for Machine-Readable Unique Serial Number

IP.com Disclosure Number: IPCOM000043492D
Original Publication Date: 1984-Sep-01
Included in the Prior Art Database: 2005-Feb-04
Document File: 2 page(s) / 74K

Publishing Venue

IBM

Related People

Bourke, DG: AUTHOR [+3]

Abstract

In a single processor system with large numbers of geographically distributed I/O or a distributed processing system, it is important that the physical location of the program-addressable entities be transparent to software. This is to allow system reconfiguration without the need of regenerating the system control program(s). For the same reasons, it is important to provide a mechanism to dynamically assign addresses to all the program addressable entities at the system power-on or initialization time. However, physical location transparency and dynamic address allocation introduce a number of problems. Having established that a distributed device requires service by running software diagnostics from a remote node, it is difficult to ascertain where to direct a service person to go.

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Programmable Module and Circuit for Machine-Readable Unique Serial Number

In a single processor system with large numbers of geographically distributed I/O or a distributed processing system, it is important that the physical location of the program-addressable entities be transparent to software. This is to allow system reconfiguration without the need of regenerating the system control program(s). For the same reasons, it is important to provide a mechanism to dynamically assign addresses to all the program addressable entities at the system power-on or initialization time. However, physical location transparency and dynamic address allocation introduce a number of problems. Having established that a distributed device requires service by running software diagnostics from a remote node, it is difficult to ascertain where to direct a service person to go. Another problem is requesting a printout to be done on a specific printer when there are multiples of the same type printer in the network. Also, when checkpoints are being used to provide high availability, using a backup processing node in a network, the device addresses are different, as viewed by the processors involved. Here, a machine-readable unique identification, such as a serial number, is provided for each product within a single product type, to be presented to software, along with the device-type information. This allows a customer to maintain a document that a system operator can use for dispatchi...