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Home » Microsoft » Windows Server » Active Directory » Merging 3 Domains into 1 domain
Merging 3 Domains into 1 domain [message #161714] Tue, 06 October 2009 09:08 Go to next message
bignev75  is currently offline bignev75
Messages: 2
Registered: October 2009
Junior Member
Hi there and thanks in advance for any help you can give me.
I want know the procedures required in order to merge 3 already established
AD domains into a single domain. (site1.lan site2.lan site.lan merged into
site1.lan)
Current set up is 9 servers some virtual split across three sites.
At all three sites there is an Exchange 2007 on win '08 x64 with its own
external domain e.g. site1.com site2.com site3.com this needs to remain the
same.
For ease of maintenance I would like to amalgamate all sites onto one AD
domain if possible and have that control of AD from one HQ site. All servers
are Win 2008 some running Hyper V.
All the sites are now connected via MPLS, that we want to take full
advantage of.

Regards,
NC
Re: Merging 3 Domains into 1 domain [message #161718 is a reply to message #161714] Tue, 06 October 2009 10:01 Go to previous messageGo to next message
aceman  is currently offline aceman  United States
Messages: 5816
Registered: July 2009
Senior Member
"bignev75" <bignev75@discussions.microsoft.com> wrote in message
news:2EBDAF8B-E664-44B2-9540-2DD5E23C4E6A@microsoft.com...
> Hi there and thanks in advance for any help you can give me.
> I want know the procedures required in order to merge 3 already
> established
> AD domains into a single domain. (site1.lan site2.lan site.lan merged into
> site1.lan)
> Current set up is 9 servers some virtual split across three sites.
> At all three sites there is an Exchange 2007 on win '08 x64 with its own
> external domain e.g. site1.com site2.com site3.com this needs to remain
> the
> same.
> For ease of maintenance I would like to amalgamate all sites onto one AD
> domain if possible and have that control of AD from one HQ site. All
> servers
> are Win 2008 some running Hyper V.
> All the sites are now connected via MPLS, that we want to take full
> advantage of.
>
> Regards,
> NC


You mentioned each site has their own Exchange 2007 installation. I assume
they are in separate forests?

If not in separate forests, you can use move users between domains, then
move their mailboxes to the Exchange server in the target domain, then
replicate any public folders, including system and hidden folders and
retarget them to the Exchange server in the target.

However, if they are separate forests, which appear to be based on your
description, then it involves performing a migration using ADMT to migrate
users first to the target domain which populates the users accounts in the
target domain, then second, move mailboxes inter-org, which moves the
mailboxes to the user accounts which you've already migrated with ADMT,
keeping the same alias names, which the move-mailbox command uses. This can
be a bit of an involved procedure, depending on your comfort level, as well
as the size of the org(s). Depending on the size of the org(s), and not
familiar with the technologies, it may be easier to hire a qualified
consultant to perform the tasks.

Read up more on it...

ADMT v3.1 Guide: Migrating and Restructuring Active Directory Domains
http://www.microsoft.com/downloads/details.aspx?familyid=6D7 10919-1BA5-41CA-B2F3-C11BCB4857AF&displaylang=en

Active Directory Migration Tool version 3.1
http://www.microsoft.com/downloads/details.aspx?familyid=AE2 79D01-7DCA-413C-A9D2-B42DFB746059&displaylang=en

Password Export Server version 3.1 (x86)
http://www.microsoft.com/downloads/details.aspx?familyid=F0D 03C3C-4757-40FD-8306-68079BA9C773&displaylang=en

Password Export Server version 3.1 (x64)
http://www.microsoft.com/downloads/details.aspx?familyid=5B4 E5C61-1C00-4DA7-9C0D-130200AED21A&displaylang=en

Domain Migration Cookbook - Index and Cover:
http://www.microsoft.com/technet/prodtechnol/windows2000serv /deploy/cookbook/cookintr.mspx

ADMT requires a two way trust between the forests - Create a trust between
the two forests
http://technet.microsoft.com/en-us/library/cc780479.aspx


For Exchange mailbox moves:

You Had Me At EHLO... : Exchange 2007 Cross Org Mailbox MigrationExchange
Migration Wizard was used to perform this task in Exchange 2003. Exchange
2007 has incorporated Cross Org migrations into the ...
http://msexchangeteam.com/archive/2006/11/02/430289.aspx

If Exchange 2003 is involved, you can use the Exmerge tool. If Exchange 2007
is involved, you would need to use the MoveMailbox method from the source
org to the target org after
migrating user accounts.

This is a weak overview of the mailbox move:
http://itknowledgeexchange.techtarget.com/itanswers/inter-fo rest-exchange-migration-from-exchange-2003-to-exchange-2007/

How to Move a Mailbox Across Forests
http://technet.microsoft.com/en-us/library/aa997145.aspx

AD and Exchange Consolidation
http://itknowledgeexchange.techtarget.com/itanswers/ad-and-e xchange-consolidation/

Inter-Forest Migration/Consolidation
http://forums.techarena.in/active-directory/1135548.htm

Deciding to Consolidate Exchange Messaging Systems
http://technet.microsoft.com/hi-in/library/bb124206(en-us,EXCHG.65).aspx

Server Consolidation Recommendations
http://technet.microsoft.com/hi-in/library/aa998499(en-us,EXCHG.65).aspx

If using the Quest tools (recommended), read this for an idea of what to
expect, time per GB, etc. Thread: QMM throughput question
http://migration.inside.quest.com/thread.jspa?messageID=2724 3

I hope that helps.

--
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Please reply back to the newsgroup or forum for collaboration benefit among
responding engineers, and to help others benefit from your resolution.

Ace Fekay, MCT, MCTS 2008, MCTS Exchange, MCSE, MCSA 2003 & 2000, MCSA
Messaging
Microsoft Certified Trainer

For urgent issues, please contact Microsoft PSS directly. Please check
http://support.microsoft.com for regional support phone numbers.
Re: Merging 3 Domains into 1 domain [message #161727 is a reply to message #161714] Tue, 06 October 2009 13:54 Go to previous messageGo to next message
meiweb  is currently offline meiweb  Germany
Messages: 2225
Registered: September 2009
Senior Member
Hello bignev75,

Ace already posted all information you need.:-)

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> Hi there and thanks in advance for any help you can give me.
> I want know the procedures required in order to merge 3 already
> established
> AD domains into a single domain. (site1.lan site2.lan site.lan merged
> into
> site1.lan)
> Current set up is 9 servers some virtual split across three sites.
> At all three sites there is an Exchange 2007 on win '08 x64 with its
> own
> external domain e.g. site1.com site2.com site3.com this needs to
> remain the
> same.
> For ease of maintenance I would like to amalgamate all sites onto one
> AD
> domain if possible and have that control of AD from one HQ site. All
> servers
> are Win 2008 some running Hyper V.
> All the sites are now connected via MPLS, that we want to take full
> advantage of.
> Regards, NC
>
Re: Merging 3 Domains into 1 domain [message #161734 is a reply to message #161718] Tue, 06 October 2009 18:35 Go to previous messageGo to next message
Teo Homsany  is currently offline Teo Homsany  Mexico
Messages: 2
Registered: October 2009
Junior Member
Hi Ace,

Thanks much for the feedback.
The network is a basic Windows Domain.
No exchange accounts are configured nor running, just basic Active Directory
user lists.
I want to have one centralized domain server with all the user accounts and
have them replicate to each server on each country through the VPN.
So the primary server will update other servers and users will connect to
their local domain server on each country.

I will read more on the documentation you advised.

Thanks much in advance,
Teo
"Ace Fekay [MCT]" <aceman@mvps.RemoveThisPart.org> wrote in message
news:u2KFR5pRKHA.3540@TK2MSFTNGP04.phx.gbl...
> "bignev75" <bignev75@discussions.microsoft.com> wrote in message
> news:2EBDAF8B-E664-44B2-9540-2DD5E23C4E6A@microsoft.com...
>> Hi there and thanks in advance for any help you can give me.
>> I want know the procedures required in order to merge 3 already
>> established
>> AD domains into a single domain. (site1.lan site2.lan site.lan merged
>> into
>> site1.lan)
>> Current set up is 9 servers some virtual split across three sites.
>> At all three sites there is an Exchange 2007 on win '08 x64 with its own
>> external domain e.g. site1.com site2.com site3.com this needs to remain
>> the
>> same.
>> For ease of maintenance I would like to amalgamate all sites onto one AD
>> domain if possible and have that control of AD from one HQ site. All
>> servers
>> are Win 2008 some running Hyper V.
>> All the sites are now connected via MPLS, that we want to take full
>> advantage of.
>>
>> Regards,
>> NC
>
>
> You mentioned each site has their own Exchange 2007 installation. I assume
> they are in separate forests?
>
> If not in separate forests, you can use move users between domains, then
> move their mailboxes to the Exchange server in the target domain, then
> replicate any public folders, including system and hidden folders and
> retarget them to the Exchange server in the target.
>
> However, if they are separate forests, which appear to be based on your
> description, then it involves performing a migration using ADMT to migrate
> users first to the target domain which populates the users accounts in the
> target domain, then second, move mailboxes inter-org, which moves the
> mailboxes to the user accounts which you've already migrated with ADMT,
> keeping the same alias names, which the move-mailbox command uses. This
> can be a bit of an involved procedure, depending on your comfort level, as
> well as the size of the org(s). Depending on the size of the org(s), and
> not familiar with the technologies, it may be easier to hire a qualified
> consultant to perform the tasks.
>
> Read up more on it...
>
> ADMT v3.1 Guide: Migrating and Restructuring Active Directory Domains
> http://www.microsoft.com/downloads/details.aspx?familyid=6D7 10919-1BA5-41CA-B2F3-C11BCB4857AF&displaylang=en
>
> Active Directory Migration Tool version 3.1
> http://www.microsoft.com/downloads/details.aspx?familyid=AE2 79D01-7DCA-413C-A9D2-B42DFB746059&displaylang=en
>
> Password Export Server version 3.1 (x86)
> http://www.microsoft.com/downloads/details.aspx?familyid=F0D 03C3C-4757-40FD-8306-68079BA9C773&displaylang=en
>
> Password Export Server version 3.1 (x64)
> http://www.microsoft.com/downloads/details.aspx?familyid=5B4 E5C61-1C00-4DA7-9C0D-130200AED21A&displaylang=en
>
> Domain Migration Cookbook - Index and Cover:
> http://www.microsoft.com/technet/prodtechnol/windows2000serv /deploy/cookbook/cookintr.mspx
>
> ADMT requires a two way trust between the forests - Create a trust between
> the two forests
> http://technet.microsoft.com/en-us/library/cc780479.aspx
>
>
> For Exchange mailbox moves:
>
> You Had Me At EHLO... : Exchange 2007 Cross Org Mailbox MigrationExchange
> Migration Wizard was used to perform this task in Exchange 2003. Exchange
> 2007 has incorporated Cross Org migrations into the ...
> http://msexchangeteam.com/archive/2006/11/02/430289.aspx
>
> If Exchange 2003 is involved, you can use the Exmerge tool. If Exchange
> 2007 is involved, you would need to use the MoveMailbox method from the
> source org to the target org after
> migrating user accounts.
>
> This is a weak overview of the mailbox move:
> http://itknowledgeexchange.techtarget.com/itanswers/inter-fo rest-exchange-migration-from-exchange-2003-to-exchange-2007/
>
> How to Move a Mailbox Across Forests
> http://technet.microsoft.com/en-us/library/aa997145.aspx
>
> AD and Exchange Consolidation
> http://itknowledgeexchange.techtarget.com/itanswers/ad-and-e xchange-consolidation/
>
> Inter-Forest Migration/Consolidation
> http://forums.techarena.in/active-directory/1135548.htm
>
> Deciding to Consolidate Exchange Messaging Systems
> http://technet.microsoft.com/hi-in/library/bb124206(en-us,EXCHG.65).aspx
>
> Server Consolidation Recommendations
> http://technet.microsoft.com/hi-in/library/aa998499(en-us,EXCHG.65).aspx
>
> If using the Quest tools (recommended), read this for an idea of what to
> expect, time per GB, etc. Thread: QMM throughput question
> http://migration.inside.quest.com/thread.jspa?messageID=2724 3
>
> I hope that helps.
>
> --
> Ace
>
> This posting is provided "AS-IS" with no warranties or guarantees and
> confers no rights.
>
> Please reply back to the newsgroup or forum for collaboration benefit
> among responding engineers, and to help others benefit from your
> resolution.
>
> Ace Fekay, MCT, MCTS 2008, MCTS Exchange, MCSE, MCSA 2003 & 2000, MCSA
> Messaging
> Microsoft Certified Trainer
>
> For urgent issues, please contact Microsoft PSS directly. Please check
> http://support.microsoft.com for regional support phone numbers.
>
Re: Merging 3 Domains into 1 domain [message #161739 is a reply to message #161734] Tue, 06 October 2009 21:57 Go to previous messageGo to next message
aceman  is currently offline aceman  United States
Messages: 5816
Registered: July 2009
Senior Member
"Teo" <teo@teo.com> wrote in message
news:e1a$LYuRKHA.1876@TK2MSFTNGP06.phx.gbl...
> Hi Ace,
>
> Thanks much for the feedback.
> The network is a basic Windows Domain.
> No exchange accounts are configured nor running, just basic Active
> Directory user lists.
> I want to have one centralized domain server with all the user accounts
> and have them replicate to each server on each country through the VPN.
> So the primary server will update other servers and users will connect to
> their local domain server on each country.
>
> I will read more on the documentation you advised.
>
> Thanks much in advance,
> Teo

You are welcome, Teo.

If no Exchange is involved, and you haven't stated it yet, if the domains in
each country are in different forests, you will need ADMT 3.1. If the
domains are in the same forest, you can simply do an intra-forest move with
the accounts to the target.

Keep in mind, there is no real "primary server" with AD. There are no PDCs
or BDCs in the NT4 sense. All DCs are replicas. Certain DCs hold specific
roles that carry out necessary functions, but they all have a writeable copy
of the database.

With the end goal of one domain, you will want to make sure all DCs in all
locations are all GCs.

I hope all this helps!

Ace
Re: Merging 3 Domains into 1 domain [message #161740 is a reply to message #161727] Tue, 06 October 2009 22:00 Go to previous messageGo to next message
aceman  is currently offline aceman  United States
Messages: 5816
Registered: July 2009
Senior Member
"Meinolf Weber [MVP-DS]" <meiweb@(nospam)gmx.de> wrote in message
news:6cb2911d71118cc14e6c280f1e9@msnews.microsoft.com...
> Hello bignev75,
>
> Ace already posted all information you need.:-)
>
> Best regards
>
> Meinolf Weber


Hi Meinolf,

I actually put that post together from various notes that were spread around
in email and my private blogs. I think I may publish it as one of my public
blogs, after I clean it up a bit!

Ace
Re: Merging 3 Domains into 1 domain [message #161757 is a reply to message #161718] Wed, 07 October 2009 04:14 Go to previous messageGo to next message
bignev75  is currently offline bignev75
Messages: 2
Registered: October 2009
Junior Member
Hi Ace,

Thanks for the reply and i will now go through all the links for the
relevant info.
Sorry Meinolf if you feel I was being lazy by not browsing all the posts but
I have tried asking similar question before and found the answers to be
contradicting.

Again thank you for you help on this matter Ace.

NC

"Ace Fekay [MCT]" wrote:

> "bignev75" <bignev75@discussions.microsoft.com> wrote in message
> news:2EBDAF8B-E664-44B2-9540-2DD5E23C4E6A@microsoft.com...
> > Hi there and thanks in advance for any help you can give me.
> > I want know the procedures required in order to merge 3 already
> > established
> > AD domains into a single domain. (site1.lan site2.lan site.lan merged into
> > site1.lan)
> > Current set up is 9 servers some virtual split across three sites.
> > At all three sites there is an Exchange 2007 on win '08 x64 with its own
> > external domain e.g. site1.com site2.com site3.com this needs to remain
> > the
> > same.
> > For ease of maintenance I would like to amalgamate all sites onto one AD
> > domain if possible and have that control of AD from one HQ site. All
> > servers
> > are Win 2008 some running Hyper V.
> > All the sites are now connected via MPLS, that we want to take full
> > advantage of.
> >
> > Regards,
> > NC
>
>
> You mentioned each site has their own Exchange 2007 installation. I assume
> they are in separate forests?
>
> If not in separate forests, you can use move users between domains, then
> move their mailboxes to the Exchange server in the target domain, then
> replicate any public folders, including system and hidden folders and
> retarget them to the Exchange server in the target.
>
> However, if they are separate forests, which appear to be based on your
> description, then it involves performing a migration using ADMT to migrate
> users first to the target domain which populates the users accounts in the
> target domain, then second, move mailboxes inter-org, which moves the
> mailboxes to the user accounts which you've already migrated with ADMT,
> keeping the same alias names, which the move-mailbox command uses. This can
> be a bit of an involved procedure, depending on your comfort level, as well
> as the size of the org(s). Depending on the size of the org(s), and not
> familiar with the technologies, it may be easier to hire a qualified
> consultant to perform the tasks.
>
> Read up more on it...
>
> ADMT v3.1 Guide: Migrating and Restructuring Active Directory Domains
> http://www.microsoft.com/downloads/details.aspx?familyid=6D7 10919-1BA5-41CA-B2F3-C11BCB4857AF&displaylang=en
>
> Active Directory Migration Tool version 3.1
> http://www.microsoft.com/downloads/details.aspx?familyid=AE2 79D01-7DCA-413C-A9D2-B42DFB746059&displaylang=en
>
> Password Export Server version 3.1 (x86)
> http://www.microsoft.com/downloads/details.aspx?familyid=F0D 03C3C-4757-40FD-8306-68079BA9C773&displaylang=en
>
> Password Export Server version 3.1 (x64)
> http://www.microsoft.com/downloads/details.aspx?familyid=5B4 E5C61-1C00-4DA7-9C0D-130200AED21A&displaylang=en
>
> Domain Migration Cookbook - Index and Cover:
> http://www.microsoft.com/technet/prodtechnol/windows2000serv /deploy/cookbook/cookintr.mspx
>
> ADMT requires a two way trust between the forests - Create a trust between
> the two forests
> http://technet.microsoft.com/en-us/library/cc780479.aspx
>
>
> For Exchange mailbox moves:
>
> You Had Me At EHLO... : Exchange 2007 Cross Org Mailbox MigrationExchange
> Migration Wizard was used to perform this task in Exchange 2003. Exchange
> 2007 has incorporated Cross Org migrations into the ...
> http://msexchangeteam.com/archive/2006/11/02/430289.aspx
>
> If Exchange 2003 is involved, you can use the Exmerge tool. If Exchange 2007
> is involved, you would need to use the MoveMailbox method from the source
> org to the target org after
> migrating user accounts.
>
> This is a weak overview of the mailbox move:
> http://itknowledgeexchange.techtarget.com/itanswers/inter-fo rest-exchange-migration-from-exchange-2003-to-exchange-2007/
>
> How to Move a Mailbox Across Forests
> http://technet.microsoft.com/en-us/library/aa997145.aspx
>
> AD and Exchange Consolidation
> http://itknowledgeexchange.techtarget.com/itanswers/ad-and-e xchange-consolidation/
>
> Inter-Forest Migration/Consolidation
> http://forums.techarena.in/active-directory/1135548.htm
>
> Deciding to Consolidate Exchange Messaging Systems
> http://technet.microsoft.com/hi-in/library/bb124206(en-us,EXCHG.65).aspx
>
> Server Consolidation Recommendations
> http://technet.microsoft.com/hi-in/library/aa998499(en-us,EXCHG.65).aspx
>
> If using the Quest tools (recommended), read this for an idea of what to
> expect, time per GB, etc. Thread: QMM throughput question
> http://migration.inside.quest.com/thread.jspa?messageID=2724 3
>
> I hope that helps.
>
> --
> Ace
>
> This posting is provided "AS-IS" with no warranties or guarantees and
> confers no rights.
>
> Please reply back to the newsgroup or forum for collaboration benefit among
> responding engineers, and to help others benefit from your resolution.
>
> Ace Fekay, MCT, MCTS 2008, MCTS Exchange, MCSE, MCSA 2003 & 2000, MCSA
> Messaging
> Microsoft Certified Trainer
>
> For urgent issues, please contact Microsoft PSS directly. Please check
> http://support.microsoft.com for regional support phone numbers.
>
>
>
Re: Merging 3 Domains into 1 domain [message #161772 is a reply to message #161757] Wed, 07 October 2009 08:42 Go to previous message
aceman  is currently offline aceman  United States
Messages: 5816
Registered: July 2009
Senior Member
"bignev75" <bignev75@discussions.microsoft.com> wrote in message
news:9590B3F6-FD9B-4B93-965E-F2D4191332B8@microsoft.com...
> Hi Ace,
>
> Thanks for the reply and i will now go through all the links for the
> relevant info.
> Sorry Meinolf if you feel I was being lazy by not browsing all the posts
> but
> I have tried asking similar question before and found the answers to be
> contradicting.
>
> Again thank you for you help on this matter Ace.
>
> NC

You are welcome.

I don't believe Meinolf was thinking that at all. We all work together
trying to help out folks. :-)

Ace
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