Library Technology Guides

Document Repository

Digital introduces redundant MicroVAX

Library Systems Newsletter [August 1987]

In Europe, Digital Equipment corporation has introduced a redundant Micro-VAX II configuration, apparently setting its sights on the "fault-tolerant" computer equipment market--those users who never want a computer to go down. (Fault-tolerant refers to the computer, not to the user.) Libraries which want fault-tolerant systems only have had the option of Tandem-based systems from Eyring Research and UTLAS. If Digital brings its new product to the United States and extends the concept to other VAX machines, libraries will have several additional options for mounting patron access catalogs on systems with very high reliability.

The product as introduced in Europe consists of two MicroVAx Its in a single box, each with 5MB of main memory, one 70MB hard disk drive, and a 90MB streaming tape back-up device for just over $110,000. Larger disk storage options are available. Unlike the Tandem approach, the two processors don't work simultaneously on the same operations. Digital has hooked the two VAX IIs together and automatically switches from the primary processor to the secondary processor as needed. The secondary processor is assigned to lower priority tasks until it is needed. The system software provides automatic reconfiguration of the secondary processor. Digital representatives in the U. S. would not comment on the development.

Permalink:  
View Citation
Publication Year:1987
Type of Material:Article
Language English
Published in: Library Systems Newsletter
Publication Info:Volume 7 Number 08
Issue:August 1987
Page(s):59-60
Publisher:American Library Association
Place of Publication:Chicago, IL
Notes:Howard S. White, Editor-in-Chief; Richard W. Boss, Contributing Editor
Company: Digital Equipment Corporation
ISSN:0277-0288
Record Number:4332
Last Update:2022-08-07 01:12:53
Date Created:0000-00-00 00:00:00
Views:37