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  2. High-availability cluster - Wikipedia

    en.wikipedia.org/wiki/High-availability_cluster

    High-availability clusters (also known as HA clusters, fail-over clusters) are groups of computers that support server applications that can be reliably utilized with a minimum amount of down-time. They operate by using high availability software to harness redundant computers in groups or clusters that provide continued service when system ...

  3. Veritas Cluster Server - Wikipedia

    en.wikipedia.org/wiki/Veritas_Cluster_Server

    Veritas Cluster Server (rebranded as Veritas Infoscale Availability [1] [2] and also known as VCS and also sold bundled in the SFHA product) is high-availability cluster software for Unix, Linux and Microsoft Windows computer systems, created by Veritas Technologies.

  4. High-availability Seamless Redundancy - Wikipedia

    en.wikipedia.org/wiki/High-availability_Seamless...

    High-availability Seamless Redundancy (HSR) is a network protocol for Ethernet that provides seamless failover against failure of any single network component. PRP and HSR are independent of the application-protocol and can be used by most Industrial Ethernet protocols in the IEC 61784 suite. HSR does not cover the failure of end nodes, but ...

  5. High availability software - Wikipedia

    en.wikipedia.org/wiki/High_availability_software

    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.

  6. Timeline of Amazon Web Services - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_Amazon_Web...

    2017: February 23: Product (compute) AWS launches i3 instances, a new generation of instances with large SSDs intended to be used for high-throughput datastores. The instances are more than 50% cheaper than the corresponding previous generation i2 instances, and have larger memory. [159] [160] [161] 2017: August 14: Product (database)

  7. High availability - Wikipedia

    en.wikipedia.org/wiki/High_availability

    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.

  8. Hot Standby Router Protocol - Wikipedia

    en.wikipedia.org/wiki/Hot_Standby_Router_Protocol

    In computer networking, the Hot Standby Router Protocol (HSRP) is a Cisco proprietary redundancy protocol for establishing a fault-tolerant default gateway.Version 1 of the protocol was described in RFC 2281 in 1998.

  9. Web hosting service - Wikipedia

    en.wikipedia.org/wiki/Web_hosting_service

    Clustered servers are a perfect solution for high-availability dedicated hosting, or creating a scalable web hosting solution. A cluster may separate web serving from database hosting capability. (Usually web hosts use clustered hosting for their shared hosting plans, as there are multiple benefits to the mass managing of clients). [8]