>They got back a letter from the national DEC service manager stating that 90% uptime was the best that anyone could expect and they better get used to it.
Meanwhile the S/370 was chugging along and never had an unscheduled outage the whole time I was there. ... In the mid-1970's, at a university, the availability target for mainframes was 95%. When I started, in 1981, it was 98.5%. In 1991, it was 99.9% When I left IGS, we had a target of “5-9's” (99.999%): 3 min 23 seconds of downtime a year. -teD In God we Trust! All others bring data! -- W. Edwards Deming ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
