calton@cs.columbia.edu (Calton Pu) (06/29/90)
The paper cited: >> Jim Gray, "Why Do Computers Stop and What Can Be Done About it?" >> Tandem Tech Report 85.7, June '85, PN87614. appeared in the Proceedings of the Fifth Symposium on Reliability in Distributed Software and Database Systems, pages 3-13, Los Angeles, 1986. You can order it from IEEE Computer Society Press (Order Number 690). That paper was good. But Jim has done a followup! The new one is: Jim Gray, "A Census of Tandem System Availability Between 1985 and 1990" Tandem Tech Report 90.1, January 1990, PN33579. The new paper is supposed to appear in a special issue of IEEE Transactions on Reliability. The major discovery is summarized by two sentences from the abstract. "[The census] indicates that now (1989) software is the majority source of reported system outages (62%), followed by system operations (15%). This is a dramatic shift from the statistics in 1985." Probably the net readers should await the special issue of IEEE Transactions on Reliability. -Calton- % Rob VanGeen noted you can: % % Contact Jane Differding, Tandem Computers Inc., Corporate Information Center, % 10400 N. Tantau Ave., Cupertino, CA, 95014-0708. Voice: (408)285-3155 % FAX: (408)285-3232.