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Exchange 2010 migrating databases to another company's Exchange 2010 server

Posted on 2014-10-22
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I am currently working a contract where I will be pretty much the point person in migrating another company's Exchange 2010 databases in to the client's Exchange 2010 all while converting shared calendar's in to public folders.  Now I've been an admin for Exchange 2010 but a bit interested in what would be best practices for performing something like this, as well as trying to avoid any potential issues.

I will be having a call with the senior Exchange engineer who is assisting with this merger who will pretty much assisting me during this time.

My potential for being hired is riding on this project and would like as much assistance as possible.  I'm feel confortable with most core concepts of the Exchange server but never merged another companies info in a completely different environment before.
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Question by:MacGyver80
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by:Simon Butler (Sembee)
Simon Butler (Sembee) earned 500 total points
ID: 40397302
You cannot pick up a database from one server and use it with another.

Therefore you have two options.

1. Export all content to a PST file and copy it to the other server.
2. Do a cross forest migration.

Simon.
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by:MacGyver80
ID: 40405269
I read on the cross-forest migration but I guess looking for best practices in performing this and feedback on the easiest fastest way in performing the move.

Is this something I can script?
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by:MacGyver80
ID: 40406482
Okay, my boss has me in the beginning stages of the move.  Currently the AD accounts have been created on the target domain and he wants me to start moving the DLs over and applying the hidden attribute.  Is there any way I can use the ADMT to do this or would I have to go through the painfull process of either creating them manually and/or exporting from the source server and then moving over to the target that way?
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Simon Butler (Sembee) earned 500 total points
ID: 40407342
"easiest fastest "

Pick one.
It will either be easy but not fast, or fast but not easy. You can't have both.
Cross forest requires a lot of planning.

ADMT can be used for doing cross forest:
http://blogs.technet.com/b/sachinf/archive/2014/03/17/how-to-migrate-distribution-groups-across-a-forest.aspx

You should really have created the user accounts with ADMT as well. That is a mistake a lot of people make.

Simon.
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by:MacGyver80
ID: 40408709
Thank you for the comments thus far.  However, some more information has just been given to me regarding this project.  Apparently, the CIO previously rejected the idea of creating a Two Way Transitive Trust between the 2 domain.  So this means the whole project just became more manually....URGGGGH!  So what the target company is thinking about doing is creating the accounts on their end and then exporting mailboxes, rules and Public Folders to PSTs and then copying the data via an IPSec tunnel to the target domain and then copying the data manual.  I myself, would rather Powershell the importing of the PSTs with a log output at the end to ensure there where no issues with the importing of the PST.

I've already wasted about 2 weeks by planning to use ADMT and .\PrepareMoveRequest.ps1 command.  So any thoughts on how I can automate this as much as possible would be really helpful!

Sorry about bringing this information to light now but as a contractor I have to really dig deep on my own and harass the FTE for information, which I just received an hour ago on a conference call.
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by:MacGyver80
ID: 40409036
Simon, what repercussions should be anticipated if we manually created the accounts and dump the mailboxes in the new environment with PSTs?

The only thing I can think of is SID issues....???
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by:MacGyver80
ID: 40409417
So now the situation is as follows:

-I wasted 2 weeks planning to use ADMT and the  .\PrepareMoveRequest.ps1 command but the CIO previously rejected the idea of creating a Two Way Transitive Trust between the 2 domain.  So this means the whole project just became more manual....URGGGGH!

-They want to export mailboxes, rules and Public Folders to PSTs and then copy the data via an IPSec tunnel to the target domain

-Employees from the source domain will be keeping their original SMTPs with secondary SMTPs from the company they are merging with

I want to Powershell script this to be able to batch import this in to the corresponding users mailboxes with a log file, if possible.

What would be my best option or choice for this?
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Author Closing Comment

by:MacGyver80
ID: 40411186
Thank to all the assistance from Simon.  However the variables have drastically changed and I will post the information in a new thread to keep it clean and concise.  Please feel free to chime in @ http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Windows_Server_2008/Q_28546886.html

Again, thank you for all the input and information!
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