I would lean toward starting from scratch, or upgrading the larger domain and then removing users and computers from the smaller domain and adding them to the larger. It would be a piece of cake to export user accounts from both domains, double check the list against HR, and then import into the new AD infrastructure. You could use Exmerge http://www.microsoft.com/downloads/en/details.aspx?familyid=429163ec-dcdf-47dc-96da-1c12d67327d5&displaylang=en to get PSTs from the smaller Exchange environment and then use the import-mailbox command to pull them back into the new Exchange 2010 environment.
How many OUs, how many machines, how many GPOs in each domain? Jonathan L. Raper, A+, MCSA, MCSE Technology Coordinator Eagle Physicians & Associates, PA [email protected]<BLOCKED::mailto:%[email protected]> www.eaglemds.com<BLOCKED::http://www.eaglemds.com/> ________________________________ From: Eric Brouwer [mailto:[email protected]] Sent: Monday, November 15, 2010 12:16 PM To: NT System Admin Issues Subject: Re: Network migration advice While both domains are relatively small (less than 100 users in the larger), the smaller domain has roughly 15 users. On Mon, Nov 15, 2010 at 12:08 PM, Jeff Brown <[email protected]<mailto:[email protected]>> wrote: Might make a HUGE difference if one of the domains has small number of users? On Mon, Nov 15, 2010 at 10:52 AM, Eric Brouwer <[email protected]<mailto:[email protected]>> wrote: Greetings, I just started work for a company with two local domains. The second domain was acquired in a merger. Here's where it gets weird. The same guy setup both original domains/networks so the servers have the same names. All the servers ar old, and running Server 2003. Each domain also has an Exchange 2003 server. I've been tasked with getting new hardware, updating the network to Server 2008 and Exchange 2010, and eliminating one of the domains. I'm not sure what the best plan of attack would be. My original thought: Create a third domain, and migrate servers and roles one box at a time, decommissioning as I go. I'm just not sure if it's possible to move mailboxes from an Exchange 2003 server in Domain A to 2010 in Domain C. My new thought: Choose one of the existing domains, and upgrade it. Install a new DC, and remove the existing one. Install Exchange, migrate users, and remove 2003. Rinse, and repeat. Which option makes more sense? Any other better ways to tackle this? Thanks! Eric ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected]<mailto:[email protected]> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected]<mailto:[email protected]> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected]<mailto:[email protected]> with the body: unsubscribe ntsysadmin ________________________________ Any medical information contained in this electronic message is CONFIDENTIAL and privileged. It is unlawful for unauthorized persons to view, copy, disclose, or disseminate CONFIDENTIAL information. This electronic message may contain information that is confidential and/or legally privileged. It is intended only for the use of the individual(s) and/or entity named as recipients in the message. If you are not an intended recipient of this message, please notify the sender immediately and delete this material from your computer. Do not deliver, distribute or copy this message, and do not disclose its contents or take any action in reliance on the information that it contains. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
