IT continuity (information technology continuity) is a holistic approach to managing technology systems in the event of a major disruption.
It may not be practical for any but the most essential IT functions to operate should a crisis occur, so it's important for IT administrators to decide which of the organization's IT functions are essential for business continuity and apportion available budget accordingly. Once the crucial components have been identified, failover mechanisms can be put in place. To ensure that everyone knows what to do in the event of a major disruption, a set of policies and procedures should be created ahead of time. IT continuity plans should be concise, defining exactly what steps are to be taken during and after a disaster.