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Continuous availability

Index Continuous availability

Continuous Availability is an approach to computer system and application design that protects users against downtime, whatever the cause and ensures that users remain connected to their documents, data files and business applications. [1]

14 relations: Business continuity, Business continuity planning, Disaster recovery, Fault tolerance, High availability, High-availability cluster, IBM, IBM Parallel Sysplex, IT infrastructure, Mobile computing, Service Availability Forum, Single point of failure, Stratus VOS, Tandem Computers.

Business continuity

Business continuity is the planning and preparation of a company to make sure it overcomes serious incidents or disasters and resumes its normal operations within a reasonably short period.

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Business continuity planning

Business continuity planning (or business continuity and resiliency planning) is the process of creating systems of prevention and recovery to deal with potential threats to a company.

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Disaster recovery

Disaster recovery (DR) involves a set of policies, tools and procedures to enable the recovery or continuation of vital technology infrastructure and systems following a natural or human-induced disaster.

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Fault tolerance

Fault tolerance is the property that enables a system to continue operating properly in the event of the failure (or one or more faults within) some of its components.

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High availability

High availability is a characteristic of a system, which aims to ensure an agreed level of operational performance, usually uptime, for a higher than normal period.

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High-availability cluster

High-availability clusters (also known as HA clusters or fail-over clusters) are groups of computers that support server applications that can be reliably utilized with a minimum amount of down-time.

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IBM

The International Business Machines Corporation (IBM) is an American multinational technology company headquartered in Armonk, New York, United States, with operations in over 170 countries.

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IBM Parallel Sysplex

In computing, a Parallel Sysplex is a cluster of IBM mainframes acting together as a single system image with z/OS.

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IT infrastructure

Information technology infrastructure is defined broadly as a set of information technology (IT) components that are the foundation of an IT service; typically physical components (computer and networking hardware and facilities), but also various software and network components.

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Mobile computing

Mobile computing is human–computer interaction by which a computer is expected to be transported during normal usage, which allows for transmission of data, voice and video.

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Service Availability Forum

The Service Availability Forum (SAF or SA Forum) is a consortium that develops, publishes, educates on and promotes open specifications for carrier-grade and mission-critical systems.

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Single point of failure

A single point of failure (SPOF) is a part of a system that, if it fails, will stop the entire system from working.

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Stratus VOS

Stratus VOS (Virtual Operating System) is a proprietary operating system running on Stratus Technologies fault-tolerant computer systems.

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Tandem Computers

Tandem Computers, Inc. was the dominant manufacturer of fault-tolerant computer systems for ATM networks, banks, stock exchanges, telephone switching centers, and other similar commercial transaction processing applications requiring maximum uptime and zero data loss.

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Continuous Availability.

References

[1] https://en.wikipedia.org/wiki/Continuous_availability

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