I just made the discovery that the new Unity Platform configuration CDs use ghost to install Windows 2003, and subsequently create the same Security IDs on all systems built using said CDs.
This is not an issue for a stand alone configuration but is an issue if you are building a multi-server AD/Exchange environment as SIDs in a domain must be unique.
I have not found any Cisco Documentation that deal with this issue and this link: http://www.cisco.com/en/US/partner/docs/voice_ip_comm/unity/5x/installation/guide/vmexfo/5xcuigvmefo040.html#wp1612824
Which covers using the platform config CD does not talk about SIDs.
I have dealt with this by changing the SIDs using a utility but is there an official way to deal with this issue?