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Best way to restore data from Exchange 2010 Server that died to a new server running Exchange 2016

Posted on 2016-08-29
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We recently lost an exchange 2010 server and will be replacing it with a new server running exchange 2016 or 2013. I was able to restore to a directory all of the EDB and transaction log files and also make a local copy on each work station of their ost and pst files. What is the best method for restoring the database for our organization into the new server so the new exchange version has all of the user information that the old version had?
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Question by:Greg Hitchcock
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by:Ibrahim Benna
Ibrahim Benna earned 500 total points (awarded by participants)
ID: 41774946
The user information is all stored in active directory so that is not lost. In fact the server details and configuration is all stored in active directory as well. You will want to install the same version of Exchange too (2010) because that is what is stored in Active Directory.

In summary here are your steps:

1. Reset the computer account in active directory for the crashed server
2. Install same version of Windows as you had on the crashed server. Install it with the same exact name as it had.
3. Install Exchange 2010 with the RecoverServer Switch. This will read AD and restore the configuration to the server
4. Restore your databases to the path they were on - since you already have them, copy them to their proper path on the server and reboot.

One thing you do not want to do is install a new exchange server because the information about the old one still will remain in AD and its hectic to clean it up - that's when your users start experiencing issues.

https://technet.microsoft.com/en-us/library/dd876880(v=exchg.141).aspx
http://terenceluk.blogspot.ca/2011/08/recovering-exchange-2010-mailbox-server.html
https://ripusudan.wordpress.com/2012/10/09/how-to-customize-ms-office-2010-installation-using-oct/
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by:Adam Brown
Adam Brown earned 500 total points (awarded by participants)
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There are third party tools that can extract the data in the EDB, but they are generally not worth the expense to purchase them. There aren't any reliable free tools to do so.

You will need to mount the EDB file on an Exchange 2010 server. It's not possible to mount an Exchange 2010 EDB on Exchange 2016 or 2013. So, you'll want to build a new Exchange 2010 server and do a restore of the mailboxes on the DB. From there, you can migrate the restored mailboxes to Exchange 2016 or 2013. You won't be able to directly restore to a 2013 or 2016 server.
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by:Greg Hitchcock
ID: 41774983
Ok, one thing I should have mentioned is that active directory was also on that server that crashed so that is also lost. I inherited this issue unfortunately but will be installing on separate servers this time around to add a little segmentation.

So to Adam~ I plan to recreate AD from scratch on the new (separate box-10-11 users) and then try and restore on the new exchange server. Using your method of 2010 first then migrate to 2016...will this still work or do you have a different suggestion in light of the AD issue?

Thanks all for the assistance!
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MAS earned 1000 total points (awarded by participants)
ID: 41777121
Hi,
Do you have an additional domain controller?
If yes you can seize your AD and recover your Exchange
https://www.petri.com/seizing_fsmo_roles
https://social.technet.microsoft.com/Forums/exchange/en-US/349962ce-a86e-49f3-af20-018745a92942/performing-exchange-2010-disaster-recovery-using-m-switch?forum=exchange2010

If all your DCs failed start a new DC and install Exchange2010,
Create all the users and mount the EDB and connect the mailbox
http://exchangeserverpro.com/exchange-2010-database-portability-disaster-recovery/

After mounting the database run "clean-mailboxdatabase -identity databasename"
You can see all the mailboxes in disconnected mailboxes.

Connect these mailboxes to the newly created users.

For bulk connecting please check this
https://www.experts-exchange.com/questions/28656506/Command-to-reconnect-the-mailboxes-in-bulk.html

MAS
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by:Ibrahim Benna
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