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High-availability cluster

Index 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. [1]

40 relations: Apache Cassandra, Application programming interface, Application software, Computer, Computer cluster, Computer network, Database, Disk mirroring, Distributed Replicated Block Device, E-commerce, Electric power, Failover, Heartbeat (computing), Hector (API), High availability, High availability software, HP Serviceguard, Hyper-converged infrastructure, IBM High Availability Cluster Multiprocessing, IBM Parallel Sysplex, Linux-HA, Network address, Network-attached storage, OpenSAF, Pacemaker (software), Power supply, Quorum (distributed computing), Red Hat cluster suite, Redundancy (engineering), SAFplus, Server (computing), Service Availability Forum, Shared-nothing architecture, Solaris Cluster, Split-brain (computing), Storage area network, Uninterruptible power supply, Urgent computing, Veritas Cluster Server, Website.

Apache Cassandra

Apache Cassandra is a free and open-source distributed wide column store NoSQL database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure.

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Application programming interface

In computer programming, an application programming interface (API) is a set of subroutine definitions, protocols, and tools for building software.

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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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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 cluster

A computer cluster is a set of loosely or tightly connected computers that work together so that, in many respects, they can be viewed as a single system.

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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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A database is an organized collection of data, stored and accessed electronically.

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Disk mirroring

In data storage, disk mirroring is the replication of logical disk volumes onto separate physical hard disks in real time to ensure continuous availability.

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Distributed Replicated Block Device

DRBD is a distributed replicated storage system for the Linux platform.

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E-commerce is the activity of buying or selling of products on online services or over the Internet.

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Electric power

Electric power is the rate, per unit time, at which electrical energy is transferred by an electric circuit.

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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.

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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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Hector (API)

Hector is a high-level client API for Apache Cassandra.

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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 software

High availability software is software used to ensure that systems are running and available most of the time.

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HP Serviceguard

HP Serviceguard, formerly known as MC/ServiceGuard, is a high-availability cluster software produced by HP that runs on HP-UX and Linux.

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Hyper-converged infrastructure

Hyper-converged infrastructure (HCI) is a software-defined IT infrastructure that virtualizes all of the elements of conventional "hardware-defined" systems.

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IBM High Availability Cluster Multiprocessing

IBM PowerHA SystemMirror (formerly IBM PowerHA and HACMP) is IBM's solution for high-availability clusters on the AIX Unix and Linux for IBM System p platforms and stands for High Availability Cluster Multiprocessing.

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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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The Linux-HA (High-Availability Linux) project provides a high-availability (clustering) solution for Linux, FreeBSD, OpenBSD, Solaris and Mac OS X which promotes reliability, availability, and serviceability (RAS).

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Network address

A network address is an identifier for a node or host on a telecommunications network.

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Network-attached storage

Network-attached storage (NAS) is a file-level computer data storage server connected to a computer network providing data access to a heterogeneous group of clients.

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OpenSAF is an open-source software project to develop high availability middleware consistent with Service Availability Forum (SA Forum) specifications, under the LGPLv2.1 license.

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Pacemaker (software)

Pacemaker is an open-source high availability resource manager software used on computer clusters since 2004.

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Power supply

A power supply is an electrical device that supplies electric power to an electrical load.

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Quorum (distributed computing)

A quorum is the minimum number of votes that a distributed transaction has to obtain in order to be allowed to perform an operation in a distributed system.

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Red Hat cluster suite

The Red Hat Cluster includes software to create a high availability and load balancing cluster.

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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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The SAFplus Availability/Scalability Platform is an open source software library used to provide high availability, scalability/clustering, and management services for software applications running in a tightly coupled distributed system.

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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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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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Shared-nothing architecture

A shared-nothing architecture (SN) is a distributed-computing architecture in which each node is independent and self-sufficient, and there is no single point of contention across the system.

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Solaris Cluster

Oracle Solaris Cluster (sometimes Sun Cluster or SunCluster) is a high-availability cluster software product for Solaris, originally created by Sun Microsystems, which was acquired by Oracle Corporation in 2010.

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Split-brain (computing)

Split-brain is a computer term, based on an analogy with the medical Split-brain syndrome.

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Storage area network

A storage area network (SAN) is a Computer network which provides access to consolidated, block level data storage.

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Uninterruptible power supply

An uninterruptible power supply or uninterruptible power source (UPS) is an electrical apparatus that provides emergency power to a load when the input power source or mains power fails.

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Urgent computing

Urgent computing is prioritized and immediate access on supercomputers and grids for emergency computations such as severe weather prediction during matters of immediate concern.

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Veritas Cluster Server

Veritas Cluster Server (rebranded as Veritas Infoscale Availabilty and also known as VCS and also sold bundled in the SFHA product) is a high-availability cluster software for Unix, Linux and Microsoft Windows computer systems, created by Veritas Technologies.

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A website is a collection of related web pages, including multimedia content, typically identified with a common domain name, and published on at least one web server.

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Database cluster, Failover Clustering, Failover Clusters, Failover clusters, HA cluster, Ha-cluster, High availability cluster, High-Availability (HA) Cluster, High-availability clusters.


[1] https://en.wikipedia.org/wiki/High-availability_cluster

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