© 1970 by British Computer Society
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Recovery procedures for direct access commercial systems
SPL International, 75 Grosvenor Street, London, UK
Direct access peripherals used for mass-storage purposes present peculiar data recovery problems. Fraser (1969) has described the solution arrived at by Cambridge University for their multi-access system. This article discusses the different approach required for commercial systems: it is hoped that the paper will stimulate those who are implementing such systems to give specific examples of recovery procedures used in practice, the frequency with which recovery is required and any consequential costs of difficulties from the service angles.
Received May 1969.