If you're like me, you've been promoting the idea of server virtualization for many, many years.
You're also probably familiar with the standard pushback: what about performance?
I can clearly remember going through before-and-after charts over and over -- again and again -- for workload after workload: databases, Exchange, web servers, etc.
You had to convince people one painful step at a time.
Here comes a new workload that more IT organizations are stepping up to: Hadoop in all its forms.
While most IT professionals can see the many, many benefits of virtualizing Hadoop environments, they frequently encounter stubborn resistance from people who "just know" doing so will unacceptably impact performance.
Well, they're wrong. And there's hard data to prove it.