Virtualize or not? - windows AD DC with VMWARE ESXI

Hi experts,

Is it secure and recommended virtualize domain controllers based in active directory windows 2008 r2? Why?

Thanks in advance.
jmatarranzAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)Connect With a Mentor VMware and Virtualization ConsultantCommented:
Yes, it's completely secure, which ever Hypervisor you use.

The DS team has a good blog entry on it here:  (also look for part 2)

http://blogs.technet.com/b/askds/archive/2010/06/10/how-to-virtualize-active-directory-domain-controllers-part-1.aspx

We virtualized all DCs.  

Be careful of time sync issues on your DC's. If your host gets busy your vm clocks can run slow. Some hypervisor's have tools that allow you to sync with your vm host. NTP and Windows Time Services work well but if drift becomes too large they will quit working. This is only usually an issue on heavily loaded hosts.

Just Make sure you never Revert a Snapshot!
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