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Failover

Index Failover

In computing and related technologies such as networking, failover is switching to a redundant or standby computer server, system, hardware component or network upon the failure or abnormal termination of the previously active application, server, system, hardware component, or network. [1]

25 relations: Abnormal end, Application software, Computer, Computer network, Computing, Disaster recovery, Fault tolerance, Fencing (computing), Hardware virtualization, Heartbeat (computing), High availability, High-availability cluster, Load balancing (computing), Log shipping, Migration (virtualization), NASA, Redundancy (engineering), Reliability engineering, Replication (computing), RS-232, Safety engineering, Server (computing), Switchover, System, Systems design.

Abnormal end

An AbEnd (also abnormal end or abend) is an abnormal termination of software, or a program crash.

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Application software

An application software (app or application for short) is a computer software designed to perform a group of coordinated functions, tasks, or activities for the benefit of the user.

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Computer

A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.

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Computer network

A computer network, or data network, is a digital telecommunications network which allows nodes to share resources.

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Computing

Computing is any goal-oriented activity requiring, benefiting from, or creating computers.

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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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Fencing (computing)

Fencing is the process of isolating a node of a computer cluster or protecting shared resources when a node appears to be malfunctioning.

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Hardware virtualization

Hardware virtualization is the virtualization of computers as complete hardware platforms, certain logical abstractions of their componentry, or only the functionality required to run various operating systems.

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Heartbeat (computing)

In computer science, a heartbeat is a periodic signal generated by hardware or software to indicate normal operation or to synchronize other parts of a computer system.

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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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Load balancing (computing)

In computing, load balancing improves the distribution of workloads across multiple computing resources, such as computers, a computer cluster, network links, central processing units, or disk drives.

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Log shipping

Log shipping is the process of automating the backup of a transaction log files on a primary (production) database server, and then restoring them onto a standby server.

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Migration (virtualization)

In the context of virtualization, where a guest simulation of an entire computer is actually merely a software virtual machine (VM) running on a host computer under a hypervisor, migration (also known as teleportation) is the process by which a running virtual machine is moved from one physical host to another, with little or no disruption in service.

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NASA

The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.

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Redundancy (engineering)

In engineering, redundancy is the duplication of critical components or functions of a system with the intention of increasing reliability of the system, usually in the form of a backup or fail-safe, or to improve actual system performance, such as in the case of GNSS receivers, or multi-threaded computer processing.

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Reliability engineering

Reliability engineering is a sub-discipline of systems engineering that emphasizes dependability in the lifecycle management of a product.

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Replication (computing)

Replication in computing involves sharing information so as to ensure consistency between redundant resources, such as software or hardware components, to improve reliability, fault-tolerance, or accessibility.

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RS-232

In telecommunications, RS-232, Recommended Standard 232 is a standard introduced in 1960 for serial communication transmission of data.

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Safety engineering

Safety engineering is an engineering discipline which assures that engineered systems provide acceptable levels of safety.

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Server (computing)

In computing, a server is a computer program or a device that provides functionality for other programs or devices, called "clients".

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Switchover

Switchover is the manual switch from one system to a redundant or standby computer server, system, or network upon the failure or abnormal termination of the previously active server, system, or network, or to perform system maintenance, such as installing patches, and upgrading software or hardware.

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System

A system is a regularly interacting or interdependent group of items forming an integrated whole.

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Systems design

Systems design is the process of defining the architecture, modules, interfaces, and data for a system to satisfy specified requirements.

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Redirects here:

Fail over, Fail-over, Failback, Failover Cluster, Failover services.

References

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

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