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Hi,
I have taken over an environment where Exchange Server 2010 RTM is installed on Win Server 2008. We've planned to migrate it to 2016 but for that exchange server 2010 needs to be in SP3. The DC is on separate VMs running on Win Server 2008 R2. The forest and domain functional levels are 2008. Since no update has ever happened to Exchange Server, is it possible to upgrade to SP3 in order to migrate it Exchange Server 2016?
Thanks in advance
Kartikeya
Hi,
Yes, you can install SP3 on Exchange server 2010 RTM.
For coexistence with Exchange 2016, Update Rollup 11 for Exchange 2010 SP3 or later to be installed.
Also, for Exchange 2016, all the domain controllers in the forest need to be running Windows Server 2008 R2 or above and the forest functional level is Windows Server 2008 R2 or higher.
Please note that Exchange 2010 support has already been ended.
https://learn.microsoft.com/en-us/exchange/plan-and-deploy/system-requirements?view=exchserver-2016
https://learn.microsoft.com/en-us/lifecycle/announcements/exchange-server-2010-support-extended#:~:text=Please%20go%20here%20to%20search,2010%20and%20SharePoint%20Server%202010.
If the above suggestion helps, please click on "Accept Answer" and upvote it.
Hi,
Any updates on this . If the above suggestion helps, please click on "Accept Answer" and upvote it.
Hi @Ashok M ,
Thank you for your response.
I would like to know if upgrading through SP3 and then migrating to Exchange 2016 is optimal solution in my scenario or shall I setup a fresh Exchange 2016 server and import all the mailboxes.
Regards
Kartikeya
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Hi,Kartikeya.
Sorry to interrupt.
Exchange 2010 doesn't support in-place upgrade to Exchange 2016.
You need to setup another server to install Exchange 2016 and have it coexist with Exchange 2010.
Then you need to move all mailboxes(including the arbitration mailboxes) to Exchange 2016 and configure the external/internal URL and DNS records to point to Exchange 2016 server.
After you make sure everything is working fine with the new server(you can also power off the old Exchange 2010 server for a few days to confirm)
you can decommission the old Exchange 2010 server.
For more information on detailed steps of migration,please use the official tool:Exchange Deployment Assistant
or refer to these helpful articles from practical365.com:Migrating to Exchange Server 2016
Hi @kartikeya mahajan ,
Please follow the steps suggested by @Kael Yao-MSFT for the migration as the recommended approach is to go with mailbox migration. For PST migration, there would be a downtime expected for the users because mailbox needs to be disconnected in Exchange 2010 and create a new mailbox in Exchange 2016. Also, on the configuration level, Exchange 2016 should have different namespace, DNS records, etc which might be complicated compared to the mailbox migration approach.
@kartikeya mahajan
Hi,Kartikeya.
is it possible to upgrade to SP3 in order to migrate it Exchange Server 2016?
Yes. Exchange 2010 RTM can be upgraded to Exchange 2010 SP3 directly.
And as Ashok mentioned,you also need to upgrade it to Exchange 2010 SP3 RU11 or later versions in order to have it coexist with Exchange Server 2016.
Then it can be migrated to Exchange Server 2016.
In addition, according to the Exchange Server supportability matrix,
you may need to upgrade your the Active Directory Forest function level to Windows Server 2008 R2 to support Exchange Server 2016 CU7 and later versions.
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