Virtualization: Better Use of Technology Resources
Can Increase Efficiency and Reduce Costs
Over the past few decades, organizations have built
large, expensive IT infrastructures to support the
multiple configurations and applications across
their network. Dedicated servers and storage
resources were associated with a single application.
Most organizations accepted this autonomy for fear
that having multiple applications on a single server
would increase the risk of a system-wide failure.
However hardware costs were higher and resources
were significant underutilized.
What is
Virtualization?
The Gartner Group defines virtualization as “The
pooling of IT resources, (e.g., computing power,
memory, storage capacity) in a way that masks the
physical nature and boundaries of those resources
from the user.” The virtualization concept was
introduced years ago with mainframes, which allowed
users access select portions of its memory.
The new generation of virtualization allows
organizations to partition server and storage
resources to maximize capacity while avoiding the
risk of instability associated with multiple
applications on a single resource. Virtualization
can be applied across multiple infrastructure layers
including desktop/laptop, software applications,
storage, and operating systems. For simplicity sake,
we will refer specifically to server virtualization
in this article.
Virtualization
Reduces Costs
The recent buzz over virtualization is well-founded
given the implications it has on server utilization,
application management, and overall cost efficiency.
According to The Gartner Group, the true utilization
of an Intel server averages between 5%-10% of actual
capacity. Virtual technology allows for unique
partitioning of server resources so multiple
applications can be deployed and higher utilization
rates can be achieved. This is possible because
virtualization all but eliminates the possibility of
creating an unstable environment when multiple
applications are running on a singe server.
The benefits to IT managers and administrators are
numerous. Virtualization allows them to shift
resources as necessary in reaction to a dynamic IT
environment. Additionally, because virtualization
often eliminates the need for new hardware, it can
result in faster deployment of applications and
simplified budget management.
Virtualization to
the Rescue
Virtualization also relates to disaster recovery. If
two unique locations in an organization are
networked, the process of moving data related to
specific applications to a second facility is
relatively quick. Conceptually, it is simply a
matter of shifting resources across a network rather
than shifting resources inside of a single unit.
Is Virtualization
Right for Your Organization?
The concept of virtualization has come a long way in
the past few decades and more organizations are
recognizing the benefits. If multiple servers,
desktops, laptops, and storage units are currently
running numerous applications, virtualization may be
a way to streamline your system and reduce costs.
In
contemplating if virtualization is right for your
organization, factors such as maintenance, training,
staff resources, and budget should be primary
considerations. Despite the consolidation of
hardware, virtualization may not necessarily reduce
staff requirements. More likely, staff skills will
need to be shifted rather than eliminated.
Ultimately, the decision to adopt virtualization
technology is unique to each organizations
distinctive IT infrastructure.