Coding techniques for failure recovery in a distributive modular memory organization
This paper considers various coding techniques which could be applied to a memory organization to achieve detection and correction of failures. In this discussion, we define a fault as a malfunction of a systems component and a failure as a manifestation of a fault. Notice that a single fault can result in multiple failures. Thus, techniques such as error-detecting and correction codes, when used alone, are limited in that they operate on failures---not faults.
Axiomatic Design Process for Disaster Tolerance
Axiomatic Design (AD) is a methodology that utilizes customer needs as input and produces functional requirements, design parameters, and process variables through the use of matrix methods. AD is based on two design axioms; the independence and the information axiom. These two design axioms and the AD approach in general seem to be well-suited for the design and analysis of large-scale computer and communication infrastructure systems. This paper describes the application of ideas from AD for
No. 1 ESS circuit packs and connectors
The mechanical packaging design of any large electronic system can have a profound effect on the cost of the system and on its operating reliability. This article describes the no. 1 ESS packaging design and discusses the considerations which influenced it. Printed wiring packaging techniques are used for the individual circuit packs. A new connector and multiple board mounting, which allow considerable flexibility and a high degree of package density, were designed specifically for this application. A test program has established that the connector will perform reliably for a 40-year design life.