| October 20, 2005 By Jerry Hodgen As I
walked through my data center a few months
ago, I reminisced about how small it was
just a few years ago and winced at the huge
expenditures the organization had made to
grow it to its current state. What made
matters worse, I was making the walk-through
to plan yet another expansion and winced yet
again when I thought about how I was going
to present this requirement to my budget
conscious CIO.
Think Strategically
It didn’t take me long to decide it was
time to think strategically and make server
consolidation and virtualization a project
under its own merit and funded as a
strategic corporate initiative. This would
remove any objections from individual
project owners about the few extra pennies
that it might cost to implement their pet
project, because in the great scheme of
things, it would reduce overall IT
department costs and subsequently benefit
the corporation as well.
I won’t bore you with a long-winded
explanation of the difference between server
consolidation and virtualization but I will
give you my simple definition. To me, server
consolidation is to condense a number of
servers in a smaller amount of space. In
today’s technology that translates into
blade servers, which Dell, HP, and IBM all
offer today. Server virtualization involves
emulating multiple servers on one hardware
platform. In this market, there are a few
vendors including Microsoft and VMware,
however, in my opinion, VMware wrote the
book in this arena and is leading the
charge.
In my mind server consolidation and or
virtualization seemed to be a much better
approach than expanding data center real
estate. My team had dabbled in blade servers
and virtual machines over the course of the
past couple of years, so the concept was not
really new to us. As a matter of fact, we
had even deployed a few blade servers and a
half dozen or so VM Boxes, but we had not
really taken a serious look at the
technology before now for a couple of
reasons.
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First and foremost, many application
providers had gone on record in the past
about not supporting their applications on
virtual machines. Secondly, in the case of
blade servers, the high cost of entry for
the initial blade server enclosure made it
difficult to justify on a project-by-project
basis.
Take Charge of the Situation
The first thing I decided to do was to
take emotion out of the decision by engaging
a third party consultant to assess the
server infrastructure. This would free up my
team to continue to take care of day-to-day
business while highly qualified engineers
focused on the challenge.
In addition, I called my software vendors
together and had a serious discussion with
them concerning my intentions and invited
them to join us or get out of the way
because I intended to steam forward with or
without them. To make a long story short,
all of the vendors eagerly jumped onboard
and discounted any Doubting Thomas attitudes
that some of their support staffs may have
displayed in the past.
A Plan
It didn’t take long for the consulting
company to deliver the results of the study
I had commissioned. Frankly, I was
pleasantly surprised with the results. 170
Servers of 195 servers were candidates to be
virtualized. Servers that didn’t make the
cut were generally systems that housed high
transaction and/or CPU intensive
applications. After reviewing the
preliminary results, my team and I decided
to capitalize on our existing infrastructure
and experience.
As a result we settled HP blade servers
as our server standard. This was an easy
decision to arrive at because we already had
a traditional HP server environment as well
as HP's Insight manager system. A key factor
in making this decision was HP’s wise
decision to include Cisco routing technology
in their platform, which allowed the blade
servers integrate into our Cisco LAN and WAN
infrastructure seamlessly.
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Leverage Existing Infrastructure and
Expertise
Now that we had decided upon the Blade
Server strategy we had to take a hard look
at what virtualization platform to use.
There are a number of players in this space
including Microsoft. In the final analysis
we felt more comfortable with VMware not
only because of our past experience, but
VMware’s ability to perform equally well
with both Microsoft and Linux.
In addition, VMware is at the forefront
in promoting and advocating standardization
for APIs related to VM machines. A vendor
striving for standardization and
interoperability goes along way in my book.
A Fiscally Responsible Business Case
Now that I had all of my facts together,
it was very easy for me to put together my
business case to the CIO. Bear in mind
“business case” to my CIO translates to
“accomplishing more while reducing costs.” I
started off my conversation by discussing
the number of applications we had to deploy
in the last year and reminding the CIO about
the new application requirements that
business operations discussed with us in
last month’s business plan meeting.
I followed with the dire fact that our
data center had reached capacity. I could
tell I commanded the CIO’s attention by the
scowl on his face and the way he shook his
head; as if that would make these issues go
away.
Then I presented him with my team’s plan
to embrace a server consolidation and
virtualization strategy, which would shrink
our data center space by over 50% and reduce
annual operating costs by over $400,000 per
year. Needless to say, the scowl immediately
changed to a smile.
And I swear I could see, in the glimmer
of his eye, visions of the CEO presenting
him with a big fat bonus check.
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