Information Technology Reference
In-Depth Information
FIGURE 12.5
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Disaster Recovery
Disaster recovery involves policies, processes, and procedures that prepare organizations
for the continuation of the vital technology infrastructure after a disaster or a set of major
failures. Disaster recovery is a subset of business continuity, which focuses on the IT sys-
tems that support business functions. Business continuity, in general, focuses on planning
to keep functional all or most aspects of a business in the midst of disruptive events.
Generally, disasters can be classified into two categories.
The first are natural disasters such as floods, hurricanes, tornadoes, and earthquakes.
Planning for natural disasters is focused upon mitigation measures to avoid or mini-
mize damage.
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The second category is human-induced disasters, which could range from hardware- to
software-level failures. This also includes malicious attacks such as viruses, malware,
and hacking. The focus of planning for such disasters is prevention through strict poli-
cies followed by mitigation through surveillance.
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