We have recently migrated mailboxes from an Exchange 2003 server to Exchange 2007, and are in the process of decommissioning the Exchange 2003 server from the organization, following MS KB: http://support.microsoft.com/kb/822931
However, we also have another Exchange 2003 server in the organization (in the First Administrative Group), in a child domain.
Therefore we have 2 Exchange Administrative Groups:
First Administrative Group – Server: EXCH2007
Exchange Administrative Group (FYDIBOHF23SPDLT) – Servers: EXCH2003_1, and EXCH2003_2
The Exchange 2003 server being decommissioned (EXCH2003_1) holds key roles:
OAB generation, routing group master, Recipient Policy, however is in the same administrative group (First Administrative Group) as EXCH2003_2.
In previous Exchange migrations I’ve been involved with, I’ve moved these roles over to the new Exchange 2007 server, as per caution in MS KB, (‘you must use caution when you remove this server from the administrative group that it belongs to’),
My concern is that if these roles are moved to a server in a different site / child domain to our new Exchange 2007 server, that this might cause problems?
I assume that these roles (Schedule+ Free Busy folder, RUS, Org Forms, Routing Group Master) must be rehomed to the remaining Exchange 2003 server (EXCH2003_2), rather than the Exchange 2007 server. Can you confirm that I am correct in this assumption?
With reference to RUS, our current settings are:
RUS Parent domain - EXCH2003_1
RUS Child domain - EXCH2003_2
RUS (Enterprise configuration) - EXCH2003_1
RUS is no longer used in Exchange 2007 / 2010, however assuming we want to keep EXCH2003_2, what are the settings for RUS? Is the RUS service (for parent domain and enterprise) required to be transferred to EXCH2007 or to EXCH2003_2, in order for RUS to continue functioning in the child domain (i.e. on EXCH2003_2)?
We currently have mail routed through EXCH2003_1. When EXCH2003_1 is decommissioned, mail will be routed through EXCH2007. Current RGCs are between EXCH2003_1 and EXCH2007. What action do we need to take with regards to connectors?