Survivability is of critical importance, making high levels of availability essential, given the increased level of infrastructure vulnerability to natural disasters, massive power failures, and malicious attacks.
Our results demonstrate how to best design a physical network to support protection methods in achieving high levels of availability efficiently.
The standby node is used to ensure high levels of availability, and it assumes the role of the main node when a failure occurs; this node has the same components as the main node.
Early reliability problems have been largely overcome, so that this type of power generation system is now considered to be a mature technology capable of achieving high levels of availability.
Data replication is one of the best known strategies to achieve high levels of availability and fault tolerance, as well as minimal access times for large, distributed user communities using a world-wide Data Grid.
While cloud providers feel the necessity to provide not only high levels of availability and reliability to meet quality-of-service (QoS) requirements and service level agreements (SLAs), but also desire to build a highly utilized system, with hopes of leading to higher profitability.
Having done this, an organization for whom the workflow is business-critical could ensure that the cloud in question has sufficiently high levels of availability, or identify (or create) a second cloud with a sufficiently high security clearance that could also be used by the workflow if the other failed.
