I usually plan my topics
several weeks in advance, and it so happens that I chose to write about
large-scale disasters well before the attacks in London.
It is with some trepidation that I write on this topic in the wake of such
recent tragedy. To the families and friends of all those touched by this
attack, my deepest sympathies and, in the spirit of carrying on that the
British have modeled for the rest of the world, I dedicate this column to the
memory of those lost on July 7, 2005.
I’ve written on the subject of large-scale disasters before,
and it is never an easy subject to cover. There will be disasters that cannot be
planned for, that cannot be protected against, and which cannot be recovered
from in the way we are familiar with when discussing disaster recovery (DR). Many
of these types of disasters are natural, with tsunamis, hurricanes, floods, and
fires as common examples. Others, as we were so recently reminded, are
man-made, but any disaster on this scale cannot be simply recovered from by
restoring from backup tapes. So how do you bring back the business when such
severe disasters strike?
Set expectations for worst-case scenarios
Believe it or not, many executives will continue to cling to
the misguided belief that technology has an answer for everything. The sheer
number of non-technical staff who believe this is
second only to those who believe that DR doesn’t cost anything to be done
properly. Many executives simply don’t understand that not everything can be
planned for, and not every calamity can be recovered from immediately. You must
prepare them for the possibility that a large-scale disaster could disrupt your
data systems for a period of time, or even take them offline permanently. If a
fire destroys the building, your servers are going with it, and no amount of
backup tapes are going to be able to restore the data until a new location is
found, and new servers are set up.
Also, keep in mind that your DR plan for data systems will
probably take second place to the fact that buildings are destroyed or
and data connections are not functioning, and that people may not be able to reach
their workplace because the area is inaccessible. This means that you may
be unable to reach backup systems, vendors cannot supply new equipment, and
staff cannot start a recovery process, even if you have everything else in
order. The severity of some of these situations can be mitigated by keeping
backups off-site or replicating to far-flung facilities, but even so, if the
people who know how to recover the systems are unable to get on the right
flights or their cable modems and DSL lines are not functioning for remote
access, you’re not coming back up any time soon.
Speaking of the human effects of these tragedies, you must
keep in mind that these disasters often cause loss of life, and some of those
lost may be key employees in your firm. For the survivors, there is the
psychological impact of witnessing the events, and dealing with the aftermath. You
cannot expect someone who’s just survived a massive earthquake to be in an
emotional state to immediately begin restoration efforts. This will add to your
timeline for eventual restoration of systems, and must be taken into account in
any business continuity plan that has a chance of success.
As you can see, in cases of large-scale disasters, DR planning
moves from the realm of fast recovery to the realm of eventual restoration of
services. With time, new locations can be found, or existing locations can
become accessible again. New hardware can be procured to repair or replace that
which was lost. Employees can return to work and begin the process of healing.
All of this, however, is a matter of time. In preparing for large-scale
disasters, the most important thing is to remind senior management of the
limitations of even the best contingency planning, and that recovery time can
stretch into days or weeks, if not longer.
People have shown an amazing capacity for recovering from every
calamity that impacts us. The technology that we create is part of that ability
to bounce back, and we must be willing to give it the time needed to react and
recover. When massive disasters strike, keeping both the technical and human
factors involved in the proper perspective will allow you to restore your business
and the services you provide to your community.
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