What is Availability?
'''Availability''' is a term used in [[information security]] to show that a system is running and reachable by those that are supposed to be able to use the system. Availability is sometimes expressed as a percentage of uptime, such as 99%. High availability is usually expressed as five nines - 99.999%. In a 24-hour, 7-day-a-week operation this would be just a little over 5 minutes per year. {{tech-stub}} [[Category:Security]]