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OSIsoft, LLC is a manufacturer of application software for real-time data management, called the PI System. Founded in 1980, OSIsoft was privately held and headquartered in San Leandro, California.
AVEVA Group plc is a British multinational information technology consulting company headquartered in Cambridge, England. The company started as the Computer-Aided Design Centre (or CADCentre ) which was created in Cambridge in 1967 by the UK Ministry of Technology and Cambridge University .
In information technology, high-availability application architecture is a process followed when implementing a new application into an existing business-wide computer system or ERP while minimizing downtime. ff The architecture contains three stages: development, quality assurance, and production.
Vertiv is an American multinational provider of critical infrastructure and services for data centers, communication networks, and commercial and industrial environments. ...
Availability of parallel components = 1 - (1 - X)^ N 10 hosts, each having 50% availability. But if they are used in parallel and fail independently, they can provide high availability. So for example if each of your components has only 50% availability, by using 10 of components in parallel, you can achieve 99.9023% availability.
Availability is typically given as a percentage of the time a system is expected to be available, e.g., 99.999 percent ("five nines"). Serviceability or maintainability is the simplicity and speed with which a system can be repaired or maintained; if the time to repair a failed system increases, then availability will decrease.
High availability is a high percentage of time that the system is functioning. It can be formally defined as (1 – (down time/ total time))*100%. Although the minimum required availability varies by task, systems typically attempt to achieve 99.999% (5-nines) availability.
Milestones in a product life cycle: general availability (GA), end of life announcement (EOLA), last order date (LOD), and end-of-life (EOL) General availability ( GA ) is the marketing stage at which all necessary commercialization activities have been completed and a software product is available for purchase, depending, however, on language ...