Dr. Jim Anderson tackles the question that all CIO’s are asking: just exactly what is “cloud computing”?
Dr. Anderson identifies the 4 different flavors of cloud computing that are available and points out how a CIO would go about using each one of them.
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To read the IT trade journals or speak with CIOs you’d think that we’ve all found the magic silver bullet that IT’s been looking for during the past few years: server virtualization. The ability to mash together a bunch of different expensive individual servers and shrink the company’s IT footprint down by a factor of 5x while reducing power and cooling costs at the same time sure seems to be a miracle cure for IT budget problems. Guess what: this isn’t Hogwarts and you’re not Harry Potter. Virtualization has its own set of problems and we need to have a talk…
So first off, let’s make sure that we’re all on the same page here with our understanding of just exactly what this virtualization thing is. In the past, IT departments used to set up a new server for each new application that they wanted to deploy. This resulted in the IT department having to maintain farms of servers that were all horribly underutilized.
The arrival of virtualization software changed everything. This low level software allowed multiple applications to run on the same physical hardware but believe that they had the box all to themselves. Now you could combine multiple individual servers into a single physical box. Things like what operating system an application used no longer mattered – you could mix and match to your heart’s content.
Evangelos Kotsovinos has taken a close look at just exactly what it means to introduce lots of virtual machines into a company’s IT infrastructure. What he’s found is that although CIOs might think that this changes everything, it doesn’t.
It turns out that managing a virtual machine (VM) takes roughly the same amount of effort that managing a real box does. When you couple this with the fact that it has become so easy to set up new VMs, what you’re seeing is unconstrained virtual machine sprawl.
IT departments are struggling to keep up with more and more VMs as staff set them up and then forget about them. Every IT department now needs to come up with a VM reclamation solution.
The very newness of VMs is causing IT departments to encounter a whole new set of management headaches. In the old days, IT departments had developed the tools and processes that they needed in order to deal with building large groups of new servers or handling a planned data center maintenance activity.
The arrival of VMs has upset this carefully established way of doing things. The problem is that often the VM management tools aren’t able to scale up to the size of enterprise operations. This leaves IT departments struggling to find ways to manage the beast that they have created.
There’s something deeply satisfying about tackling a system problem when you have the physical box in front of you. You know that you can always reach out and swap out various components if you have to. The same is not true when you’ve virtualized all of your servers.
Kotsovinos points out that a VM is really a collection of interconnected physical subsystems: server, storage, and network. When you are dealing with a system problem, like a slowdown, it’s going to require a whole new set of skills to track down what’s really going on. Additionally, virtualization is so new that often the right tools to do this type of trouble shooting may not exist yet.
Think about how your IT department is set up today. Generally we draw lines between various disciplines based on what they do: the Unix team, the Windows team, the storage guys, the network guys, etc. The arrival of virtualization in the data center is going to screw all of this up.
The reason that virtualization can cause such a disruption is because issues that have to do with the VMs more often than not involve all of the various disciplines. No longer will the storage team be able to just focus on storage issues. Instead, they are going to have to work together with several other teams in order to try to solve complex problems.
Server virtualization is a fantastic discovery. However, CIOs need to realize that it’s not going to make all of their problems go away.
Instead, virtualization is going to end up replacing one set of problems with another. These will include potentially unchecked virtual machine sprawl, scaling issues, more challenging troubleshooting, and a breakdown in the IT silo structure.
Face it, virtualization is going to take over both the IT back office and probably the IT front office eventually. CIOs need to understand that as this occurs, we’re all going to have to adjust how the IT department is run in order to meet the new set of demands that virtualization is going to put on us…
- Dr. Jim Anderson
Blue Elephant Consulting –
Your Source For Real World IT Department Leadership Skills™
Question For You: What do you think is the best way to keep virtual machine sprawl from getting out of hand?
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Let’s face it, CIOs just like everyone else are currently being overwhelmed with too much information on a daily basis. Things were bad a few years ago, but with the arrival of blogs, wikis, Internet video and smartphones, there just doesn’t seem to be any way for us to keep up. That’s why more and more CIOs are turning to simulations in order to visually present large amounts of information in a way that we can absorb it. However, it turns out that our simulations just might be lying to us…
By Dr. Jim Anderson
CIOs Need To Make Sure That Cloud Computing Is Not Just A Fad
Does anyone besides me remember the big Furby craze that swept the U.S. in the early ’90′s? People went crazy for these little plush dolls and they started collecting them in hopes that they would one day be valuable. Well, that never happened and a lot of people got stuck with expensive toys that they couldn’t get rid of. Is is possible that the current cloud computing craze in IT could be another Furby fad that will fade away?
If a CIO can move beyond the hype, he/she needs to spend some time doing their homework in order to find out what kind of services a cloud could offer that their company could make use of. Neal Leavitt has spent some time studying cloud computing and has boiled cloud services down into four types of services:
The Forrester research company has done some investigating and they now claim that most company’s data centers are using less than 50% of their total capacity. Despite the hype that is currently surrounding cloud computing, Leavitt has uncovered three very good reasons for looking into having your firm start to use cloud computing:
It is all too easy for CIOs who are adverse to change to look at the current excitement over cloud computing and decide that it is yet another fad that will fade away in time. The reality is that cloud computing provides several different types of services that are useful to any IT department. This can’t be ignored.
Additionally, successfully adding cloud computing resources to the company’s existing IT infrastructure will mean that a CIOs will have found a way to apply IT to enable the rest of the company to grow quicker, move faster, and do more.
How much of your existing IT infrastructure do you think that your firm is currently using – more or less than 50%? Which of the four types of cloud computing services would have the most immediate value to your company? Why? Leave me a comment and let me know what you are thinking.
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Cloud computing is all the rage these days and everyone who is anyone is making plans to implement at least some flavor of it as soon as possible. It turns out that the decision to go with a cloud computing solution for your IT department might not be as simple as some would lead you to believe. There are challenges to successfully using a cloud and we need to talk about them…
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