Our company is thinking about virtualizing Zimbra 6, on a virtual machine, RHEL or other type, we don't know yet, and that machine will be deployed on an ESX 4.0i server. We have several questions regarding virtualization:
- what are the disadvantages when virtualizing Zimbra?
- are there any known issues about virtualization that are unsolved? (any links or posts ?)
- is there a "best practice" thread or documentation about Zimbra virtualization, like "how to install/configure ZCS on a ESX virtual machine?"

I hope you all understood my questions and I'm thanking you in advance for your replies.