It is often seen that one of the main benefits of the cloud is its perceived ability to handle high traffic websites in a way that dedicated servers would never be able to. Whilst dedicated servers can be clustered together to provide more power, in most cases this isn’t without its downtime, not to mention …
When the malfunction of a component redundant and after repair, one may wish to reintroduce the active service, check its proper functioning, but the results are used. In this case, inputs are processed by one (or several) components to be reliable
Ironically, adding more components to the total system can undermine efforts to achieve high availability. This is because complex systems are inherently more potential failure points and are more difficult to implement correctly
High availability is a system design protocol and associated implementation that ensures a certain absolute degree of operational continuity during a given measurement period.
All hardware has its limits, and often the same service has to be spread over several machines, so as not to become congested. These solutions can be specialize in small groups on which it is a load balancing: CPU usage, storage, or network.