Disaster recovery is an essential part of business management, and it can be organised in the business function of the failure to get a quick response to the contingency plans. Therefore, the business organisation can be a return to a normal operating state after any disaster occurs in the shortest possible time.

For this disaster recovery, Business functions may disrupt by different issues such as natural disasters, human disasters, system damage, viruses, system security problems, etc., and therefore, disaster recovery is not just to let the electronic system back to normal state so simple, but more widely covered The entire enterprise culture, the daily operation of the function, the scope of expansion and the overall enterprise organisation.