The risks and rewards of
cloud. According to Alan Priestley, director of strategic
marketing EMEA at Intel, there is one very big barrier to adoption of cloud marketing: risk aversion.
That risk aversion is no doubt
born of fear, if not of the unknown, then certainly of the sheer work required
before organizations are able to benefit from the flexibility and, potentially,
cost savings of moving applications to the cloud.
It isn’t just about the fact that
they have built far-reaching IT infrastructures
in-house over the course of many years. It’s also about the changes required in
how the IT department is run and in the skills of the people who work in it.
Intel, though, has already shifted
some of its IT to the cloud, as appropriate. “Intel uses cloud, both private and public, but we
also have a lot of IT that we cannot and will not put into the cloud,”
Priestley told attendees at this week’s Computing IT Leaders’ Forum, which
focused on the management of hybrid clouds.
Feel the fear
However, when an organisation is
already facing acute IT problems, the fear factor comes from not facing up to
them. UCAS, the universities’ clearing service, has always faced a particular
challenge: for a few days every year in August, demand for its services goes
through the roof as students rush to secure a university place.
By 2011, the website through
which everything had been automated was struggling to cope: a new approach that
could handle the August spike in traffic was needed.
The solution proposed by James
Munson, head of IT at UCAS, was radical: it would shift much of its computing
services to the cloud. Not only that, but it insisted on a contract that would
enable it to ramp up its compute capacity in August when it was all-action, and
reduce it (and the price) for the rest of the year when the service is quieter.
“In 2011 and 2012, UCAS had
problems being able to deliver the scale that was required for that intense
period in the morning when everyone was getting their results at the same
time,” said Munson.
“It was all hosted on-premise
where we’re based in Cheltenham. We had created quite a complex infrastructure
environment – some Microsoft .NET, some database, some Unix, different storage
area networks all hosted there, and quite a lot of bandwidth that all needed to
go in to that location on that one day, so it was not surprising that we were
having ‘issues’.”
Furthermore, the architecture
around which UCAS’s services had been built was monolithic, which meant changes
required far-reaching testing and the systems lacked comprehensive monitoring.
“So when things started to go wrong, we didn’t have great insight into what was
going wrong and what was causing the problems. Something had to change.”
In late 2012, that change was
decided: a transition to a public cloud infrastructure, with services shifting
to a combination of Microsoft Azure, which made sense given UCAS’s existing
.NET application investments, Amazon Web Services to host the organisation’s
Oracle databases, and Rackspace, with whom UCAS already had a relationship.
The key services for finding and
tracking courses were rebuilt in Microsoft Azure, with in-house Oracle
databases upgraded, re-engineered and ported across to Amazon. These are
load-balanced across two zones and the website is hosted by Rackspace.
Skills challenge
Munson found that the new skills
required of an IT department in the era of cloud are very different from those
required to run IT in-house – a skills gap also found by Rocco Labellarte, CIO
at the Royal Borough of Windsor and Maidenhead.
“We are looking at a whole new
set of skills,” he said. “There are lots of kids out there with the right
qualifications in terms of understanding the environments. But actually getting
people with the practical skills who have ‘been there and done that’ is another
matter.”
He continued: “We have broken
down our skill sets into a three areas: one is to move to a monitoring team,
which is effectively just sitting there, watching the large screens all the
time and being able to react very quickly because we are maintaining the
service integration element internally.
“The second is having
commissioned technical architects that understand exactly how everything is put
together, both from a hardware perspective, and from a networking, security and
applications perspective.”
Finally, although the
organisation may be outsourcing to cloud providers, there is still a need for
technical architects that can inform the organisation how it should be done, on
the one hand, while challenging providers and their recommendations on the
other.
Going the extra mile to get
appropriately skilled staff in-house can save a fortune, he added. “Having
internal skills, if they are significant, provides a cost benefit. We have
avoided about £500m in spend by having the right skills from the start,” said
Labellarte.