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Upgrade three 2008 (non R2) servers (2 has EX2010) to 2012 R2...
Upgrade two 2008 (non R2) servers (both are DC and have Exchange 2010) and a 2008 (non R2) server all to 2012 R2...
All x64, all with latest updates. One Exchange has SP2 (KB2903903) and doesn't (some error when I tried.)
Keeping the Exchange as 2010.
Just straight upgrade installation on all 3 servers? PDC, BDC, then the server?
Or am I asking for trouble?
Oh, the PDC has 2 SATA HDs that are mirrored by OS on C: and D:. What a nightmare last week when it failed to reboot with a FTDISK_INTERNAL_ERROR Stop Code 00000000x58. I really need to do away with OS raid 1 and 2008 server.
Maybe add a 2012 R2 + exchange and move all the services over and demote the old raid 1 server?
All x64, all with latest updates. One Exchange has SP2 (KB2903903) and doesn't (some error when I tried.)
Keeping the Exchange as 2010.
Just straight upgrade installation on all 3 servers? PDC, BDC, then the server?
Or am I asking for trouble?
Oh, the PDC has 2 SATA HDs that are mirrored by OS on C: and D:. What a nightmare last week when it failed to reboot with a FTDISK_INTERNAL_ERROR Stop Code 00000000x58. I really need to do away with OS raid 1 and 2008 server.
Maybe add a 2012 R2 + exchange and move all the services over and demote the old raid 1 server?
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There is not direct upgrade path from Windows Server 2008 (no R2) to Server 2012 R2.
Here are the supported paths.
http://blogs.technet.com/b/askcore/archive/2012/10/23/upgrading-to-windows-server-2012-part-1.aspx
https://technet.microsoft.com/en-us/library/dn303416.aspx
If you want to do direct upgrades to 2012 R2 you will need to do it in 2 steps. Either taking your 2008 and upgrading to 2008 R2 then to Server 2012 R2 or ..taking your 2008 to Server 2012 then taking that to R2.
Also, having Exchange installed on a DC is not a recommended or supported configuration. It will work but if you call into support, they will not be able to help you much if any.
You really need to get those Exchange boxes separated out onto their own machines.
Here are the supported paths.
http://blogs.technet.com/b/askcore/archive/2012/10/23/upgrading-to-windows-server-2012-part-1.aspx
https://technet.microsoft.com/en-us/library/dn303416.aspx
If you want to do direct upgrades to 2012 R2 you will need to do it in 2 steps. Either taking your 2008 and upgrading to 2008 R2 then to Server 2012 R2 or ..taking your 2008 to Server 2012 then taking that to R2.
Also, having Exchange installed on a DC is not a recommended or supported configuration. It will work but if you call into support, they will not be able to help you much if any.
You really need to get those Exchange boxes separated out onto their own machines.
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And as Will said...Exchange is not supported for in-place upgrades. From both of our posts, you really need to get Exchange on it's own dedicated machine.
When I was a T3 Exchange Escalation engineer for Microsoft, I wouldn't even talk to you after I found Exchange was installed on a DC.
Do it correctly this time and you won't have to do it again and you will have far less issues.
When I was a T3 Exchange Escalation engineer for Microsoft, I wouldn't even talk to you after I found Exchange was installed on a DC.
Do it correctly this time and you won't have to do it again and you will have far less issues.
Will, I am sorry. First time here. I didn't know it is a point based system. I didn't know how to split. I saw something like "multiple acceptable answers" but I guess I clicked the wrong button.".
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Windows Server 2008
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Exchange 2010 SP3 is only supported up to Server 2012 NOT R2. See supportability Matrix at the below link.
https://technet.microsoft.com/library/ff728623(v=exchg.150).aspx
As for your migration plan, i would not do an in place upgrade of your DC's. Exchange does not support in-place upgrades so you will need to spin up new sevrers Exchange anywyas. You might as well do them for both.
You should also do the same for your DC's as well. Spin up new server OS installs promote as a DC for one of the servers and install Exchange 2010 on the other one.
Just make sure that it is Server 2012(non-R2).
Will.