Natural and manmade disasters do hit us in the form of hurricanes, earthquakes, fires, floods, criminal and terrorist acts, without any forewarning. Even human errors can severely damage an organisation’s computing resources, and thus the health of the organisation itself.
Several companies, including online E-commerce retailers, E-commerce wholesalers, banks, airlines and ISPs, for instance, are impaired by losing even just a few hours of computing. This is why organisations need to develop disaster recovery procedures and formalise them in a well-charted disaster recovery plan.
The disaster recovery plan specifies the employees as well as their duties, who will participate in disaster recovery, besides indicating the hardware, software and facilities to be used, in addition to the precedence of applications to be processed. Arrangements with other companies for the use of alternative facilities as a disaster recovery site and offsite storage of an organisation’s databases are also part of an effective disaster recovery effort.
After an incident or loss of data, infrastructure managers often need to rebuild parts of the infrastructure through disaster recovery methodologies.