The Benefits of Consolidation and Virtualization
CIO — You may be installing virtualization tools so that one server can do the job of five. You might be using configuration management tools to swap applications from one machine to another, depending on load. You may simply be looking to retire old hardware in order to run apps on new, more energy-efficient multicore systems. But no matter what your strategy, your goals or your tactics, you still have a problem. How the heck do you even know what’s out there to consolidate?
In large, dispersed environments, identifying consolidation opportunities can be a time-consuming job, requiring the combined efforts of engineers and systems architects working with everything from asset management tools to network discovery applications, to performance monitoring utilities, to homegrown spreadsheets, to big, old-fashioned whiteboards in order to determine what pieces of your hardware and software infrastructure might be better off someplace else.
But a new segment of products—sometimes called data center intelligence or consolidation management tools—are promising to help you automate the consolidation process, freeing up the time of some of your most valuable employees while simultaneously providing the hard numbers you may need to justify a consolidation project. And while these tools now come primarily from smaller vendors, the big guys are gearing up to include these functions in their own business systems management suites.
Here’s the hot news from the consolidation front.
A Consolidation Tale
Bell Mobility, one of the largest mobile phone service providers in Canada, had a problem. More accurately, it had one problem (or crash) after another. Recovering some critical systems could take hours, disrupting services and costing the company serious money—$2.1 million per day for one system alone. So in 2005 Bell Mobility launched a study to find a way to speed disaster recovery. One of the recommendations that emerged was to consolidate applications and servers in order to centralize recovery efforts, with the hoped-for side effect of improving server utilization.
At the beginning of the study, Bell brought in a consultancy to evaluate its operations and offer suggestions for where consolidation made sense. Michel Tremblay, manager for OSS network engineering at Bell Mobility, thinks that’s a good way to go. "If you support those systems, it’s hard to say, I’m going to cut off my system by so much percent," he says. It’s more likely, according to Tremblay, that an internal IT staff with relationships to the systems might be tempted to say, It’s working, so why should I do this?


