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Virtualizing Microsoft Tier 1 Applications with VMware vSphere 4

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Over the years as power costs have soared and data center space has become scarce and expensive to acquire, enterprises and small businesses have been looking for ways to decrease their data center footprints as well as reduce the overall costs of operating an IT infrastructure. As the number of different applications being deployed in data centers grows, efficiency in deployment, management, and resource consumption is critical. Imagine having to deploy a new piece of physical hardware for each of these applications—or, even worse, each tier of these applications. Well, that wasn’t too long ago. Racking, stacking, and installing the OS took a day to complete. The procurement and approval processes alone took weeks. How did we ever get anything done? Luckily for us, VMware has dramatically changed the landscape of IT with the vSphere suite of virtualization products.

With the introduction of virtualization into the data center, businesses have sought to virtualize the infrastructure of their data centers by deploying hosted and bare-metal virtualization products. It’s a slow process for most companies, but, nonetheless, virtualization is extending its reach into data centers everywhere, one virtual machine at a time. Over the past few years, virtualization has gone from being a tool for developers and testers to being the default infrastructure for many organizations’ IT departments. As we strive to make our processes more efficient, virtualization just makes sense. Provisioning takes minutes, not days; management can be done through a single pane of glass, and hardware upgrades—rather, virtual-hardware upgrades—happen from home on the weekends.

As virtualization becomes more and more common in today’s data centers, businesses are becoming more comfortable deploying virtualization in production. For systems administrators who are new to virtualization, the file, print, DHCP, DNS, and small web servers are the lowhanging fruit. Most systems administrators have been given virtualization initiatives from the head brass, and these “low-risk, low-utilization” applications are the easy wins. As server hardware becomes more powerful and applications become more efficient, though, it makes no sense to deploy a single application on a single piece of physical hardware, even the larger and more demanding applications. These are usually the tier-1 applications that are considered critical for the business.

When virtualization technologies were first introduced to enterprise and small/medium businesses, many thought this new technology would enable them to deploy all of their infrastructure and business-critical or tier-1 applications on virtualized platforms. When we say tier-1, we are talking specifically about infrastructure and applications that are critical to a business’s daily operations. Businesses, including enterprises and small/medium ones, would be severely crippled without these applications running optimally. However, early virtualization efforts for these tier-1 applications were not very successful for a variety of reasons. Immaturity of the virtualization platforms as well as improper planning caused these projects to fail and created a negative opinion of virtualization in businesses.

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