IT Services

High Availability

What it is?

High availability system design approach and associated service implementation that ensures a prearranged level of operational performance will be met during a contractual measurement period.

High availability is a characteristic of a system. The definition of availability is Ao = up time / total time. This equation is not practically useful, but if (total time - down time) is substituted for up time then you have Ao = (total time - down time) / total time.

• High availability solutions protect companies from lost revenue when access to their data resources and critical business applications is disrupted.
•  The starting point for the selection of a high availability solution is to fully identify the set of availability problems that you are attempting to address.

 

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