Cart (Loading....) | Create Account
Close category search window
 

A Fault Tolerant Memory For Duplex Systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Hartwell, W.T. ; Bell Telephone Laboratories; Naperville Road; Naperville, Illinois 60540 USA. ; Hoffner, C.W. ; Toy, W.N.

A fault-tolerant memory design uses modular bit swapping to achieve high system availability with minimum redundancy despite high memory-device failure rates. The design permits automatic repair of multiple faults without loss of error detection, thereby allowing deferral of manual repair. Although the design was directed toward use in a duplex system, the technique potentially applies to simplex systems. Double-bit swapping and 4096-word modules were chosen for this system. With a 64k memory, 18 memory device faults would occur in its 40-year life. The number of instances of manual repair will average 3; the number of faults in the system when manual repair is required will average 6. Similarly, with a 1024k memory, 288 memory faults would occur in its 40-year life. The number of instances of manual repair will average 20 and the number of faults in the system when manual repair is required will average 14.

Published in:

Reliability, IEEE Transactions on  (Volume:R-27 ,  Issue: 2 )

Date of Publication:

June 1978

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.