I have a remote site that will be used as or disaster recovery location. There are 6 servers hosted on 1 VMware box at that site. 5 of them are synchronized with application, exch and file servers in the main location using doubletake. The 6th is currently just a member server. On the main site I have one 2003 and one 2008 Stan. Servers both as domain controllers and global catalog servers. The 2008 server holds the FSMO roles. I want to have a backup of active directory but don't want to use AD backups or doubletake to do it as i don't think doubletake does AD well and restoring backing from nothing can be problematic as well. I did have the member server setup as a domain controller once before but it seemed to cause slowness in the logins and policy errors. We have a vpn connection between the main office (4.5mb) and this remote site (1.5mb) via T1's.
I found info referencing registry changes (MS KB244474 & MS KB910206) in the remote site to avoid issues of slowness but before I joined the server to the domain again I wanted to find out if anyone had other ideas or experiences with a similar configuration.