(alsofive nines reliability)99.999percent: thepercentageoftimethat acomputersystemshouldworkwithoutfailing:In thecomputerindustry, thechallengingtargetis "five nines" or 99.999% - anaverageannualdowntimeof fiveminutes.five ninesavailability/uptime(Definition offive ninesfrom theCambridge Business English Dictionary? Cambridge University Press)
Examplesoffive nines
five ninesFor example, afiveninessystem would statistically provide 99.999% availability.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Fiveninesreliability in a continuously operated system means an average downtime of no more than approximately five minutes per year.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.For example, if someone were to sayfivenines, you would know they mean the number: 99999.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Carrier grade systems are tested and engineered to meet or exceedfivenineshigh availability standards, and provide very fast fault recovery through redundancy (normally less than 50 milliseconds).FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.I have seenfivenineson the table before now, which really is an excessive number.FromProject GutenbergThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.#https://dictionary.cambridge.org//dictionary/english/five-nines##
