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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 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 ...

4. Rackspace Cloud - Wikipedia

   en.wikipedia.org/wiki/Rackspace_Cloud

   Cloud files is a cloud hosting service that provides "unlimited online storage and CDN" for media (examples given include backups, video files, user content) on a utility computing basis. [7] It was originally launched as Mosso CloudFS as a private beta release on May 5, 2008, and is similar to Amazon Simple Storage Service . [ 8 ]

5. OpenStack - Wikipedia

   en.wikipedia.org/wiki/OpenStack

   NASA's Nebula platform. In July 2010, Rackspace Hosting and NASA announced an open-source cloud-software initiative known as OpenStack. [7] [8] The mission statement was "to produce the ubiquitous Open Source Cloud Computing platform that will meet the needs of public and private clouds regardless of size, by being simple to implement and massively scalable".

6. 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 ...

7. 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 ...