Background: 5 ESXi servers running in DRS, ~20TB storage. Loads of virtual servers including DC's/child DC's/member servs all 2K8 and Exchange 2010 servers.
Majority deployed from a template (not joined to domain), renamed and then joined to domain.
I'm pretty sure 90% of my machines have the same SID, at the very least I know my 3 Exchange 2010 servers have same SID (1 CAS/HUB, 2 MBX in DAG).
I know I can change the SID of my machines using NewSID, my question is can I do this to a machine already joined to the domain, let alone an Exchange 2010 server.
Any insight is helpful, thanks!