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Date
To us, Information Technology organizations have always been on the leading edge of project management. It could be that IT is more disciplined than other departments within an organization. We don’t mean in a bad way that others are not disciplined; they are in their own way. But like the healthcare industry, IT lives on technology, procedures and processes, which makes it easier to adopt the more formal process and procedures of structured project management.
Couple that with the fact that IT uses a lot of organizational resources; costs of power, heating and cooling, as well as its effects on human resources, has a huge influence on the ability of people to be efficient with their work, and you find that IT projects greatly affect sustainability. One of the major projects undertaken by IT departments is computer virtualization. Because most of today’s computers are designed to run a single operating system and a single application, most computers are underutilized. Virtualization allows multiple virtual machines to run on a single hardware platform. In other words, a single hardware platform can run different operating systems and different applications. For simplicity, and it is anything but, a single hardware system could run a PC environment with all of its applications, as well as a MAC environment with all of its applications.
So how does it work? There is software available from various manufacturers that allow a single computer hardware system to be virtualized so that each virtual machine can run its own operating system, as described above, and look like its running on its own hardware system. Each virtual machine is a “stand-alone” so that there are no conflicts between systems. VMware, one of the more popular virtualization software, “works by inserting a thin layer of software directly on the computer hardware or on a host operating system. This contains a virtual machine monitor or “hypervisor” that allocates hardware resources dynamically and transparently. Multiple operating systems run concurrently on a single physical computer and share hardware resources with each other. By encapsulating an entire machine, including CPU, memory, operating system, and network devices, a virtual machine is completely compatible with all standard x86 operating systems, applications, and device drivers. You can safely run several operating systems and applications at the same time on a single computer, with each having access to the resources it needs when it needs them.”
So what does that have to do with sustainability, or Green IT? It probably seems obvious to you, and you’re right, it will allow you to get rid of multiple hardware platforms that use power, heating and cooling, saving all those resources, without affecting the way people work. We’ll talk about server virtualization another time.
Posted
by
Dave Shirley
on: September 22, 2011 08:39 AM |
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