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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 .
Citect is now a group of industrial software products sold by Aveva, but started as a software development company specialising in the Automation and Control industry. The main software products developed by Citect included CitectSCADA, CitectSCADA Reports, and Ampla. As of August 2021, Citect SCADA is now known as AVEVA Plant SCADA. [1]
The latest release, as of March 2021, is AVEVA PDMS 12.1.SP5 [2] AVEVA has introduced the latest version of PDMS is AVEVA Everything 3D (E3D). The current version of AVEVA Everything 3D is 2.1 (Expected to Launch 3.1 very soon) AVEVA Everything 3D has been introduced with the new UI and with advanced functions.
High availability (HA) is a characteristic of a system that aims to ensure an agreed level of operational performance, usually uptime, for a higher than normal period. [ 1 ] There is now more dependence on these systems as a result of modernization.
OpenHPI is an open-source software system providing an abstracted interface to managing computer hardware, typically for chassis and rack based servers. [1] [2] It is production ready implementation of the Hardware Platform Interface specification from Service Availability Forum, complimenting existing hardware management standards.
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.
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.