A disaster is any event that halts business activity on a large scale. In most cases, we are talking about natural disasters, but there are also human-made disasters, and all of them can happen at any time without warning.
These disasters could impact technologies and IT services. Of course, there are other and more critical aspects, such as risk to human life, but for Business Continuity(BC), we put the main focus on business-critical services and applications.
DR provides BC in the event of a disaster, and may be just localized on equipment (such as a single server) or globally on an entire site. Business will be recovered by following a specific DR plan; it is just a subset of the Business Continuity Plan (BCP). In the case of a disaster that impacts an entire site or region, usually, the recovery process uses a remote location...