A great initiative from Duncan Epping and Frank Denneman, their two excellent books: VMware vSphere 4.1 HA/DRS and 5.0 Clustering Deepdive Kindle version are available for free!
I have bought those two books in the past and they are an invaluable resource for any serious professional who is into virtualization.
Go get them while they’re free, and drop a thank you note to Duncan and Frank!
http://t.co/cMNREZNzvH & http://t.co/ZL6HteCJwK