These barclamps are designed and build to enable Hadoop environments to be rapidly deployed using Dell Crowbar.
The barclamps can be found on github, along with the project wiki including build information, FAQs and other important links.
Folks on my team also created a variety of videos to help you get started in building Crowbar and setting up Hadoop environments using Crowbar:
We encourage you to download these barclamps, test them in your environment, and join the crowbar@dell.com community.