In Cloud, ITIL, and SOE – Heterogeneity is the New Standard

March 15, 2010
Balance, Percentage vs. Dollar

Effort vs. Payback is an Everyday Business IT Decision

I read recently a good blog post from Thomas Bittman (@tombitt) of Gartner Group, about how sometimes close enough is good enough. Talking specifically about private cloud, he talked about how an ‘imperfect’ cloud deployment – one that does not have all five essential characteristics, for example – might be enough for some organizations.

I especially appreciated how he highlighted some very specific, real-world examples to sustain his advice. As he shows, sometimes you don’t need a ‘100%’ implementation, and for very good business reasons.

Not every IT organization needs a fully self-service interface, and many smaller organizations see no value in usage metering. They simply want to deliver services faster. For them, a 70% private cloud is absolutely good enough … it all comes down to business requirements, return on investment, and future strategy. How far you go is your decision.

via Driving for Imperfection With Your Private Cloud.

If you haven’t seen it yet, you should. It’s a quick read, only 4 paragraphs and less than 300 words. Go ahead. I’ll still be here when you get back.

“Delivering on key business requirements is more important than definitions”

The theme is very similar to something I wrote in a research report for EMA, The Responsible Cloud, also on cloud computing. Regarding the NIST definition of cloud, I cautioned against dogmatic interpretations of cloud computing, and the notion that a ‘real’ cloud must necessarily have all of the essential characteristics, or fit some specific deployment model. Flexibility is key, I advised, and delivering on key business requirements is more important than definitions.

Two other things happened this week that made me think about this in different ways:

  • An internal session at CA reviewing some customer-facing materials. All attendees agreed – we can’t preach unattainable dogma; we need to deal with specific requirements and partial deployments, as well as broad requirements that come from  ‘100%’ implementations.
  • A group discussion on LinkedIn, where an IT practitioner wanted advice on building a small private cloud. He was soon inundated with an unrealistic list of requirements, from hypervisor features to management disciplines, that he *must* have to build a ‘100%’ cloud.
“You never really need a Rolls Royce. Sometimes you can make do with a Lada”

The similar inferences in three otherwise unrelated conversations started me thinking more broadly about ‘100% adoption’. It IT, as in life, you never really need a Rolls Royce. You can aspire to the quality, appreciate its refinement, and in some cases you may be fortunate enough to actually enjoy it, but there is a point where it simply doesn’t make sense to pursue that level of luxury. Mostly you can get away with a Ford. Sometimes you can even make do with a second-hand Lada.

The same Pareto-like principle applies roughly throughout IT (much to the annoyance of just about every security pro I have ever met) – although the actual ratio may vary wildly, you can often get most of the benefit from less than a ‘100%’ implementation.

The phrase that sprang to mind for me was the same conclusion that I published elsewhere in the Responsible Cloud report, and the same notion that many IT pros live by, day in and day out:

It is important to look for opportunities, and do what makes sense

This should not just apply to cloud computing, but across all of IT.

Take, as another example, adherence to the IT Infrastructure Library (ITIL). Now, ITIL is a great framework, and an increasingly definitive reference for best practices in IT management. Data I have seen suggests as many as 60% of all IT organizations are committed to ITIL, and that implementation of ITIL (whatever that actually means) results in measurable and specific benefits in IT costs, staff and server efficiency, operational maturity, and more.

However, I also hear and read somewhat justified rants about how “ITIL just doesn’t work … ITIL is more 1960s than 2010 … it’s useless.” Yet the truth is, as so often, somewhere in the middle. In this too enterprises can definitely benefit from avoiding the dogmatic application of every single prescription. The same is true for other standards such as COBIT and ISO, or prescriptions from standards groups like the DMTF or NIST. All can deliver significant benefits with less than a 100% implementation.

It also applies in internal adoption of standard operating environment (SOE) components, like making singular (and often binding) choices between, for example:

  • VMware vs. Hyper-V vs. Xen
  • HP vs. Cisco vs. IBM
  • HDS vs. NetApp vs. EMC
  • Windows vs. Linux vs. UNIX
  • iPhone vs. WinMo vs. Blackberry
  • Solution suites vs. point products
  • Mainframe vs. Commodity
  • Physical vs. virtual vs. cloud
“Most IT practitioners know that heterogeneity is the new standard”

In all these cases and more, although standardization can have specific benefits, the greatest benefit to the enterprise does not always accrue from making an exclusionary choice; from committing to a 100% implementation. Most IT practitioners know that heterogeneity is the new standard – whether intuitively or grudgingly. They know that sometimes the best – or at least necessary – outcomes arise from providing multiple choices, fit to support multiple use cases.

Of course some areas are less flexible. You cannot, for example, pick and choose which parts of PCI, HIPAA, or Sarbanes-Oxley compliance would work best for you. Perhaps ‘close’ only matters in horseshoes and hand grenades, but for sure it doesn’t matter in legal compliance.

However, where possible, IT – practitioners, consultants, vendors, and analysts – need to stay away from dogma. We must avoid making any architecture, maturity model, or industry standard a religious ‘all or none’ battle. Important though they may be, these are not religious battles. These are IT decisions. Moreover, these are business decisions. So we need to keep the business goals in mind, and realize that sometimes a ‘100%’ implementation simply does not make sense.

Almost all large companies and many small and midsized enterprises are virtualizing. Based on surveys, the majority of large companies consider building a private cloud a core strategy. Surprisingly, that’s even true with midsized organizations – but slow down a bit. While the direction makes sense, be careful about getting too caught up in the hype of building a perfect private cloud. A cloud service requires a self-service (or non-manual) interface, and some form of usage metering, or even chargeback. Behind the interface, the services are delivered automatically on demand.

privrain The fact is, not every IT organization needs a fully self-service interface, and many smaller organizations see no value in usage metering. They simply want to deliver services faster. For them, a 70% private cloud is absolutely good enough.

There is still value in virtualizing your resources, automating how the resources are allocated to meet demand, automating provisioning based on standard service offerings in a published service catalog. But you may want a person in the middle of the process. Or you may want to route the pure self-service requirements to your favorite external cloud provider rather than build your own. And that’s OK. It all comes down to business requirements, return on investment, and future strategy (including the potential to evolve to external cloud providers in the future). How far you go is your decision.

So while most enterprises may consider private cloud their goal, and vendor hype is going to skyrocket on how to reach that goal – my bet is that most organizations will find that a less than pure private cloud is going to be good enough.

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