Here is statement from Vmware document link VMware vCenter Site Recovery Manager 5.1 Documentation Library
Protection and Recovery of Active Directory Domain Controllers
Do not use SRM to protect Active Directory domain controllers. Active Directory provides its own replication technology and restore mode. Use the Active Directory replication technology and restore mode technologies to handle disaster recovery situations.
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Thanks a lot
I suppose that applies to Replication 5.5
And this includes replicating a domain controller for a Test Failover on a private network correct?
I have done two things in the past to test AD in a private network. We used to use the VMware Converter to do P2Vs, which actually worked quite well. Our DCs at the time were Windows 2003 and later 2008 R2 VMs. We later began to do a straight clone of a 2008 R2 DC, but that required shutting down the DC. That particular DC didn't get much traffic, so we could afford to shut it down for an hour or two. We now are at Windows 2012 R2 DCs and I have so far shut down a DC once for cloning.
I don't know why a P2V would be clean for copying a running DC, where cloning sets off a lot of VSS errors, etc. There's probably an easily explained, known reason for it, but I'm not aware myself. I haven't tried cloning a live 2012 R2 DC, but I assume it would react the same way. 2012 R2 DCs are much more VM friendly and they are even clonable for production, if done correctly, but the MS instructions for it do say to shut down the source DC.