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2. High availability - Wikipedia

   en.wikipedia.org/wiki/High_availability

   High availability is a property of network resilience, the ability to "provide and maintain an acceptable level of service in the face of faults and challenges to normal operation." [ 3 ] Threats and challenges for services can range from simple misconfiguration over large scale natural disasters to targeted attacks. [ 4 ]

3. 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 ...

4. High availability software - Wikipedia

   en.wikipedia.org/wiki/High_availability_software

   High availability software is measured by its performance when a subsystem fails, its ability to resume service in a state close to the state of the system at the time of the original failure, and its ability to perform other service-affecting tasks (such as software upgrade or configuration changes) in a manner that eliminates or minimizes ...

5. Dynamic infrastructure - Wikipedia

   en.wikipedia.org/wiki/Dynamic_Infrastructure

   Dynamic infrastructures also provide the fundamental business continuity and high availability requirements to facilitate cloud or grid computing. For networking companies, infrastructure 2.0 refers to the ability of networks to keep up with the movement and scale requirements of new enterprise IT initiatives, especially virtualization and ...

6. Clustered web hosting - Wikipedia

   en.wikipedia.org/wiki/Clustered_web_hosting

   Clustered hosting is a type of web hosting that spreads the load of hosting across multiple physical machines, or node, increasing availability and decreasing the chances of one service (e.g., FTP or email) affecting another (e.g., MySQL). Many large websites run on clustered hosting solutions, for example, large discussion forums will tend to ...

7. Continuous availability - Wikipedia

   en.wikipedia.org/wiki/Continuous_Availability

   The terms high availability, continuous operation, and continuous availability are generally used to express how available a system is. [3] [4] The following is a definition of each of these terms. High availability refers to the ability to avoid unplanned outages by eliminating single points of failure. This is a measure of the reliability of ...