[LINK] NBN and the data centre: Time to update Gershon?
Rik Harris
rik at kawaja.net
Thu Sep 10 11:17:58 AEST 2009
Bernard,
The grubby little secret of cloud computing is that technically it's
pretty much the same as a dedicated, virtualised environment. The
"elastic" bit is the commercial and financial engineering that goes
into managing headroom. The theory is that the bigger the cloud and
the more "customers" with different demand characteristics, the more
value you can get out of maintaining a shared headroom.
The resource management needs to be there in a dedicated, virtualised
environment just as much as in a "cloud". Ideally the chargeback part
is collecting the same data as is required to properly manage a
virtualised environment.
Where "cloud" is valuable is when you can get enough scale together that
the cloud provider can use significantly less infrastructure than the
cloud customers individually would need (virtualised or not) and therefore
offer lower TCO than those individual customers would otherwise be able to
create.
I would have thought the Commonwealth has enough scale to get significant
benefits from sharing some of the technical infrastructure to get value
out of building a "private cloud" on the networks that are important to
the Commonwealth.
The question of data centres seems to me to be a similar question - there's
a lot of value in consolidating computing workload into a smaller number
of large physical sites. This value includes the ability to more
efficiently power them. It doesn't matter whether you call the computing
infrastructure that gets put in them "cloud" or "dedicated virtualised
environment". Again, a "cloud" that was dedicated to the Commonwealth
could certainly have enough scale to make the economics work.
NBN might drive demand for some types of services, but serious data
centres are already connected with fibre (such as ICON) and to
high-speed backbones where needed. So, there's value in looking
at what people are calling cloud, but it doesn't have much to do with
the NBN.
regards,
rik. [long-time lurker]
[disclaimer: I work for Telstra, a company providing services similar
to those described in the above message. I am even involved in the
delivery of some of these services. However I am not representing
Telstra's views or opinions - they are my own]
--
Rik Harris
-----Original Message-----
From: link-bounces at mailman1.anu.edu.au
[mailto:link-bounces at mailman1.anu.edu.au] On Behalf Of Bernard
Robertson-Dunn
Sent: Thursday, 10 September 2009 9:11 AM
To: link
Subject: [LINK] NBN and the data centre: Time to update Gershon?
<brd>
Someone needs to explain to me how an elastic cloud environment with all
its extra overhead of resource management and chargeback can be more
efficient than a dedicated, virtualised environment.
I've asked some of the leading proponents of cloud computing but so far
they have not come up with a satisfactory answer.
And if Bob Hayward thinks that the only issue regarding locating data
centres in or out of Canberra is power, then he's either ignoring or
ignorant of ICON. The NBN is unlikely to be a valid alternative in terms
of cost and latency.
</brd>
NBN and the data centre: Time to update Gershon?
by James Riley
Wednesday, 09 September 2009
http://www.itwire.com/content/view/27595/53/
Just one year after UK efficiency expert Sir Peter Gershon handed the
Commonwealth his report on government ICT procurement and use, experts
are already saying in the case of the data centre it might be time for
another look.
Global tech services giant CSC says the fat pipes of the National
Broadband Network and the much matured market for virtualisation
software meant the savings anticipated by Gershon through data
consolidation measures may have been understated.
And the environmental and sustainability improvements delivered by
combination of the NBN and virtualisation technologies should give
government good reason to take another look at medium-term data centre
plans, according to CSC Australia chief innovation and technology
officer Bob Hayward.
As the bandwidth of the NBN becomes a reality, the broadband network
will start to accelerate the shift to cloud model, and the Commonwealth
should think now about Government Cloud models, he said.
Power consumption issues are non-trivial. Hayward says data centres
around the world consume more energy than Argentina, and doubles every 5
- 7 years. And 6 to 8 per cent of Australia's greenhouse gas emissions
are directly attributable to ICT use.
Consolidated data centres and virtualised environments, coupled with the
ability to shift processing loads and data more easily across the NBN,
created opportunity for government to pursue cloud models.
"Gershon (conducted the review) really just before Cloud took hold,"
Hayward told iTWire. "It talked a lot about consolidated data centres
and virtualisation, but how you then move beyond virtualisation into
these flexible, self-provisioning, really agile computing environments
with pay-as-you-go models - that is something I don't think was quite
there when (Sir Peter) did his reviews in the UK and in Australia."
"These are things you need to look at the medium term . certainly it
needs to be on the planning horizon," he said. "If organisations in
Government are looking at consolidating their data centres in 12 to 18
months then why not do that with some view to private government
cloud-type infrastructure."
CSC clearly wants to figure in the Commonwealth's post-Gershon data
centre plans, and in its broader service provisioning markets.
Though Hayward believes that for the most part software as a
service-style offerings probably isn't quite ready for the kind of
primetime use that meets Government's risk-averse needs, so-called
Platform as a Service infrastructure opportunities are a different matter.
"The clear early wins in this area are going to be in infrastructure,"
Hayward said. "So, for example, why have every agency have its own test
and development environment, when that can be made available in a shared
pool, and on an as-needed basis."
"That makes a lot of sense. That's low hanging fruit. And we think the
savings - including environmental/sustainability savings - would be
considerable."
Government is getting closer to formalising its forward data centre
strategy, with the Australian Government Information Management Office
(AGIMO) set to complete its formulations by the end of the year.
The usual suspects among large agencies look at varying stages of
readiness. Centrelink signed a long-term enterprise licensing deal with
virtualisation leader VMware earlier this year; Immigration (a big CSC
customer) is getting quite sophisticated in their thinking on such
issues following the Systems for People program; and Australian Taxation
Office is already doing leading things in the space.
Vendors will get a glimpse at how AGIMO is thinking about the data
centre future when it names it panel contract for suppliers of data
centre services in the next two weeks.
Regardless, CSC's Hayward says the NBN and advances in virtualisation
servicers - particularly features like VMware's vMotion, which enables
applications to be easily and dynamically shifted between physical data
centres on the fly - Government should tweak its Gershon-inspired
roadmap to enhance its environmental deliverables.
"We should think about the optimal locations for these (data centre)
facilities. Do they really need to be in Canberra, drawing power from
the electricity grid - for example? Or can they be powered by gas, or
some renewables," Hayward said.
"We have to get smarter about the sorts of data centres we build, where
they are, and the kind of power that they consume."
"We need to be thinking out of the box now. We need to think of other
ways to power data centres. We shouldn't just be thinking about the
normal way of doing things."
--
Regards
brd
Bernard Robertson-Dunn
Canberra Australia
brd at iimetro.com.au
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