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Exchange 2000 to 2007 migration ??

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Last Modified: 2008-02-10
Hi,

We plan to migrate our mail server to Exchange 2007. But our domain still Windows 2000.

I am listing our configuration and the steps we plan to do. We are worry about the results, I mean the Forest and AD impact regarding our setup. May you comment or recommend ideas about this migration.

** Current configuration **
SERVER1: Windows 2000, DC, AD, DNS, WINS, DHCP, Exchange 2000
SERVER2: Windows 2000, DC (backup)
SERVER3 to 5: Windows 2000 Members
SERVER6: Windows 2003 Member, SQL 2003

** Planned configuration ** (Phase#1)
SERVER1: Windows 2000, DC, AD, DNS, WINS, DHCP
SERVER2: Windows 2000, DC (backup)
SERVER3 to 5: Windows 2000 Members
SERVER6: Windows 2003 Member, SQL 2003
SERVER7: Windows 2003 R2 Member, Exchange 2007

step1: Install SERVER7 a new server Windows 2003 as member and Exchange 2007 (with Client Access, hub, Mailbox and Unified Roles)
step2: Install Anti-Virus
step3: Test the server with some dummy mailboxes
step4: Migrate the mailboxes from Exchange 2000 to 2007 with the build-in tool in Exchange 2007 Management Console
step5: Tests some mailboxes (connect with Outlook 2000, 2003 and 2007)
step6: Redirect all smtp traffic to SERVER7
step7: Uninstall Exchange 2000 from Add/Remove Programs on Server1

** Planned configuration ** (Phase#2, within 6 months)
SERVER1: Windows 2003, DC, AD, DNS, WINS, DHCP
SERVER2: Windows 2003, DC (backup)
SERVER3 to 5: Windows 2000 Members
SERVER6: Windows 2003 Member, SQL 2003
SERVER7: Windows 2003 R2 Member, Exchange 2007

step1: DCPromo on SERVER2 to depromote this server
step2: Remove SERVER2 from the domain
step3: In place upgrade of SERVER1 from Windows 2000 to Windows 2003
step4: Format and Reinstall SERVER2 as SERVER8 with Windows 2003
step5: Insert SERVER8 as DC in this domain

Best Regards,

ANormand
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Author

Commented:
Hi,

Want do you think about this plan instead, migrate to Exchange 2003 and when the domain will be update to Windows 2003 migrating to Exchange 2007?
This way I do not touch the domain and resolve our main concern regarding limited size with Exchange 2000.

Regards,
Expert of the Year 2007
Expert of the Year 2006

Commented:
If you don't want to touch the domain then migrating to Exchange 2003 is your only option. Although even then to get the full feature set you need Windows 2003 GC/DCs.

Simon.

Author

Commented:
OK,

With all your input and documents I read. Here my revised plan.....

** Current configuration **
SERVER1: Windows 2000, DC, AD, DNS, WINS, DHCP, Exchange 2000
SERVER2: Windows 2000, DC (backup)
SERVER3 to 5: Windows 2000 Members
SERVER6: Windows 2003 Member, SQL 2003

** Planned configuration ** (Phase#1)
SERVER1: Windows 2000, DC, AD, DNS, WINS, DHCP
SERVER2: Windows 2000, DC (backup)
SERVER3 to 5: Windows 2000 Members
SERVER6: Windows 2003 Member, SQL 2003
SERVER7: Windows 2003 R2 Member, Exchange 2003

step1: Install SERVER7 a new server Windows 2003 as member and Exchange 2003
step2: Install Anti-Virus
step3: Test the server with some dummy mailboxes
step4: Migrate the mailboxes from Exchange 2000 to 2003 (over automatic roll-up, on this part I will need informations on this procedure)
step5: Tests some mailboxes (connect with Outlook 2000, 2003 and 2007)
step6: Redirect all smtp traffic to SERVER7
step7: Uninstall Exchange 2000 from Add/Remove Programs on Server1 (is it recommanded ???)

Regards,

ANormand
Expert of the Year 2007
Expert of the Year 2006
Commented:
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Author

Commented:
Sembee:

I read your guide, if I understand well your document is based on replacing/migrating an Exchange Box for another keeping the same name on a member server.

Our setup wasn't install as the best rules for Exchange.
Our Exchange2000 is installed on Windows2000 DC,AD.
We want to keep this server1 as Windows2000 DC, AD and having server7 (member) as Exchange2003. And uninstall Exchange2000 from this server1.

Is there any special concerns regarding our plan.

Regards
Expert of the Year 2007
Expert of the Year 2006

Commented:
My guide is written for various scenarios. You simply have to adjust the steps.
Everything is in the guide. You will install Exchange on to the new machine with a new name, move all the data across as outlined. Once the migration is complete and all of the Outlook users have connected just once you can then remove the original Exchange server.

Simon.

Author

Commented:
When you have a Windows 2000 DC with Exchange 2000 and Windows 2003 (Member) with Exchange 2003. Do we have to do forestprep and other DC Schema update for Exchange 2003?

Regards
Expert of the Year 2007
Expert of the Year 2006

Commented:
If you already have an Exchange 2003 server then you do not have to prep the domain or forest again. If you do not have Exchange 2003 already then prep is required.

Simon.

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Author

Commented:
Thanks you all for your input... a special thanks to Sembee for his input and his online documentation. Will keep you posted of the migration... regards

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