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Facilità d'uso
’80s
’90s
’00s
Business Focus
Traditional
Dot.com
e-Business
Requirements
Restore, Recover
High Availability
24 x 7, Scalable
Driven by
Regulation
e-Commerce
Competition
Magnified by
Disaster
Absence of
Dependence on
“Bricks & Mortar”
Computers
II. The evolution of business continuity
Recovery
Hardware
Hardware, Data
Hardware, Data,
Expectation
Applications
In recent years, as the world has grown evermore
Days/Hours
Minutes/Seconds
Minutes/Seconds
dependent on technology, the concepts and
Decision
Optional
Mandatory
methods of business continuity have evolved to
keep pace. (See Figure 2.) This evolution has been
a two-sided coin: New infrastructure and applica-
Figure 2. The evolution of business continuity
tions require an expanded continuity effort, yet
Since the mid-1980s, business continuity has evolved to reflect the world’s growing
they also provide new tools and methods for
dependence on IT. Where it was once considered adequate to restore computer
operations hours or days after an IT interruption, users now expect key business
achieving continuity.
processes to be accessible on a 24 x 365 basis.
As recently as five years ago, the focus was on
reactive recovery of IT assets and operations fol-
> Storage area networks: In evaluating the mar-
lowing a disaster. For non-critical systems and
ket for SAN services in Europe, IDC predicts
applications, this could mean being down for as
that the availability of open storage solutions
long as 48 to 72 hours while IT staff or a disaster
will trigger SAN growth in excess of 100% over
recovery vendor restored or replaced the affected
the next two years.6
systems and restored networking capabilities.
Even for the most critical applications — such
> Mobile commerce: As InfoWorld magazine has
as brokerage trading rooms or overnight funds
noted,“Signs are pointing to a dramatic shift
transfer — enterprises were willing to tolerate
towards wireless for conducting business.” Leading
the four to eight hours of downtime required to
companies plan to roll out wireless strategies by
relocate applications, data, and staff to an alter-
mid-2001, and mobile commerce sales are pro-
native processing facility or “hotsite.”
jected to reach as high as $1.8 trillion by 2005.7
As the pace of global business quickened in the
> A new generation of “thin” devices: According
mid- and late 1990s, this level of continuity came
to Meta Group, “By 2001-03, there will be
to be viewed as unacceptable for business-critical
enormous progress in deployment of pervasive
applications. In response, IT solution providers
thin devices using alternative hardware and
developed approaches that focused on prevention
software to connect to the Internet.” 8
and continuity rather than after-the-fact recovery.
These approaches included high-availability and
> Perceptive peripherals and applications: Further
fault-tolerant configurations, redundant network-
out, smart devices and applications will be able
ing infrastructures, and high-availability services
to detect and analyze problems or changes in
that use predictive technologies and proactive
the environment and automatically trigger an
service to anticipate and resolve problems before
appropriate response via the Web. This will drive
they affect routine operations.
rapid growth of machine-to-machine traffic,
which will further tax IT infrastructure.
During the last two to three years, as companies
have faced mounting pressure to be open for
As these technologies mature and are integrated
business around the clock, they have combined a
into the enterprise IT environment, they will place
range of technologies to enhance IT availability and
new demands on those responsible for ensuring
drive business continuity ever closer to the ideal of
business continuity.
24 x 365. These enabling technologies include:
6 International Data Corporation, European Business Continuity Services: Risk as a Services Opportunity, January 2000.
7 InfoWorld, “E-commerce focuses on wireless commerce,” October 24, 2000.
8 Meta Group, Ensuring Business Continuity: e-Business and High Availability, April 2000.
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