green IT
centre, to the advanced measured
assessment of current state and
simulation of future potential.
Even the most basic deployment
of the performance indicator allows for
a visualisation of the balance between
the metrics, which reflects the
balance between risk and waste. It
empowers organisations with different
goals, whether this is to deliver
resilience at the expense of efficiency
or computing power at the expense of
resilience, to quickly identify how they
perform against their targets and track
performance over time. When simulation
is introduced in the third and fourth
levels, rather than just understanding
where your facility is now, comparing
alternative configurations and predicting
how changes will impact each metric
– before the fact – becomes a reality.
These predictions are only possible
thanks to the growing sophistication
of computational fluid dynamics.
At its most advanced PI provides
a framework to assess the effects of
changes before they are implemented,
whether from IT deployments or the
installation of containment. This gives
the ability to understand how safe any
IT expansion will be, how to utilise 100
per cent design capacity or run through
‘what if’ scenarios to develop strategies
for managing issues before they arise.
The implications are staggering –
by adopting PUE, data centres have
dramatically changed expectations
for energy efficiency. By building
on this with PI they are ensuring
that visibility of performance, facility
and IT are inextricably connected
with the business. This provides the
opportunity of improved effectiveness
alongside improved efficiency.
Tool fit for purpose
PUE was a watershed moment for
data centres. It was a metric of its time,
focused on delivering insight on energy
efficiency. As businesses were looking
to cut costs and society was looking for
ways to preserve the world’s resources,
PUE became the go-to metric that
delivered. But times have changed.
The needs of businesses and society
have moved on. That is not to say those
original objectives have been abandoned.
We still require everything that PUE
was good at, but now we need more.
In the simplest terms we need to
ensure energy efficiency is balanced
against resilience and performance.
The Green Grid’s Performance
Indicator is again a tool for its time,
one that will enable the data centre
industry to plan, build and, with the use
of simulation, see into the future.
Web Shop: www.pennelcomonline.com
Web Catalogue: www.penn-elcom.com
EM - Server Racks Series
With their solid high end construction, the
EM Rack Servers Series are a high quality
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