My first AD DC (also my DHCP, DNS, and RIS) needs bigger hard disks. I have three other DCs. (Only one site.)
I don’t mind reloading it from scratch on bigger drives (using the same chassis, i.e. same CPU and NIC) — indeed it may have been compromised and needs a reload, but…
1. Will I have problems adding this “new” server to the domain given that it’s already listed in AD?
2. If things don’t go well once I’ve done this and I decide to pull the new drives and fall back to the old drives, will the “old” server be recognized as valid?
Will the “new” server have a new SID, and where does this matter? Consider that I’m not restoring anything from tape, and all the shares and filesystem permissions on the “new” server will be built fresh. Browsing DNS, most AD _entries reference machines by name, but in _msdcs there is one GUID or SID looking Alias entry for each DC name. What services use these entries?
