Definition: Disaster Recovery

Today I had a debate with my team mate on what Disaster recovery is! This made me to think again on what I know about Disaster Recovery. By going through various sites; I conclude that I am in right direction and reached to define what Disaster recovery is in the context of IT Infrastructures:

In my words, Disaster recovery is a planed way to recovery from a catastrophic event like Fire, earthquake, terrorist attack etc. It is also related Business Continuity Plan and called as a plan to maintain & run a Business or operation continually with a capacity to recover from any kind of known/unknown disasters.

This specifically requires a Geo separated site to have off-line backups, data and documentation necessary to run a Business / Operation and is intended to plan protection on large losses.

In Wikipedia (http://en.wikipedia.org/wiki/Disaster_recovery) words:

Disaster recovery is the process, policies and procedures of restoring operations critical to the resumption of business, including regaining access to data (records, hardware, software, etc.), communications (incoming, outgoing, toll-free, fax, etc.), workspace, and other business processes after a natural or human-induced disaster.

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