Disaster recovery and business continuity planning are
processes aim for organizations to be prepare for that one disruptive event
that can take them out of business, even temporarily. In the context of this
assay, it is related to event that can affect the IT systems, be it passive
infrastructure (i.e caballing) or systems.
Often, when an organization deals with this subject
they often discuss "DRP vs BCP", Disaster recovery or business
continuity planning, what’s important, and what can be more cost effective. Most
organizations that I'm familiar with takes the approach of " business
continuity first, we will deal with the disaster when it will happen". That
is why IT organization replicate their servers to a location name
"DRP". You have live copy of the content, but will you be able to
access it?
Should it was decided to replicate the content of the IT
servers to secondary and tertiary sits (someone said cloud?) to allow smooth
contingency. It is nice to have them available, but think of the ability to use
them.
True story. Some day at 1999, arrived to the office
early in the morning, just to find out that the northern wing of the management
building was on fire. The first floor was burnt out to the ground (literally
the floor fell down on to the ground floor). Unfortunately the Backbone switch
was in that floor. Using the infrastructure on the south wing to connect the
building back to the working campus network, people were able to return to
their desks the following morning.
Having "hot and active" multiple datacenters,
that is contingency plan. Having redundant "cold and passive"
infrastructure, that is disaster recovery plan.
(Written as part of the Coursera based seminar "Cybersecurity
and Its Ten Domains")
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