I've used this article to assist me ( I liked the screenshots) with the migration of DHCP from 2003 to 2008R2. http://social.technet.microsoft.com/wiki/contents/articles/7411.step-by-step-migration-dhcp-from-windows-server-2003-to-windows-server-2008-r2-with-windows-server-migration-tools-en-us.aspx
Everything went well up until I needed to import the configuration to the 2008R2 server. The import failed, there were many messages that so and so users was not imported because it already existed, etc. Per this article, I used this powershell command for the import:
Import-SmigServerSetting -featureid DHCP -User All -Group -Force -path\\2008r2 servername\DHCPData -Verbose
I did not remove the 2003 server from active directly yet, because we are not yet ready to decommision it. Could that be why the import failed? Also, why does this command reference "User" and "Group" if I'm looking to import the IP scope, leases, reservations, etc? Should I be using a different command for the Import to the 2008R2 server?