I have a client who I recently upgraded from 2003 domain controllers to 2008 R2 domain controllers. The upgrade was successful, but now comes the upgrading 2008 R2 DCs to 2016 Standard. I was wondering if the following steps are correct and if any of the steps will cause an issue if I still have a couple of server 2003 boxes on the network. Jelliott wrote:Thanks for the replies everyone. I do still have some remaining questions. Please see below:1. Will Windows 2003 Servers still work on a Windows 2016 Forest/Domain?2.
What is the process for consolidating sites in Active Directory Sites and Services?3. Do I need to run RODCprep off of the 2008 R2 disc if I did not do so yet, or can I just run the 2016 ADprep right off of the bat?4. When migrating FRS to DFSR for SYSVOL and other replication, will that have any negative effect on Windows 2003 servers (or other servers) currently on the domain?5. Can you upgrade to a 2016 Forest/Domain level with 2003 Servers on the domain?1. Yes, so long as they are NOT domain controllers.2. Sites are based on Subnets that you create in AD Sites & Services. You can delete a site if you wish from AD Sites and Services.
Then you can associate your subnets with the site you want.3. You only need to run RODC prep if you are going to use and RODC. ADPrep is now handled by the promotion wizard in 2016. This is not something you have to run manually.4.
As long as the 03 servers are not domain controllers. You cannot proceed with the migration in you have a 2003 DC.5. Raising your DFL/FFL determines the lowest level DC you can have in your domain/forest. If you raise it to 2016 you can only have 2016+ domain controllers. You would not be able to promote any lower level DCs. Your DFL/FFL will not impact member servers.
Jelliott wrote:I have a client who I recently upgraded from 2003 domain controllers to 2008 R2 domain controllers. The upgrade was successful, but now comes the upgrading 2008 R2 DCs to 2016 Standard. I was wondering if the following steps are correct and if any of the steps will cause an issue if I still have a couple of server 2003 boxes on the network. Thanks for the replies everyone.
I do still have some remaining questions. Please see below:1. Will Windows 2003 Servers still work on a Windows 2016 Forest/Domain?2. What is the process for consolidating sites in Active Directory Sites and Services?3. Do I need to run RODCprep off of the 2008 R2 disc if I did not do so yet, or can I just run the 2016 ADprep right off of the bat?4.
When migrating FRS to DFSR for SYSVOL and other replication, will that have any negative effect on Windows 2003 servers (or other servers) currently on the domain?5. Can you upgrade to a 2016 Forest/Domain level with 2003 Servers on the domain? Jelliott wrote:Thanks for the replies everyone. I do still have some remaining questions. Please see below:1.
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Will Windows 2003 Servers still work on a Windows 2016 Forest/Domain?2. What is the process for consolidating sites in Active Directory Sites and Services?3. Do I need to run RODCprep off of the 2008 R2 disc if I did not do so yet, or can I just run the 2016 ADprep right off of the bat?4. When migrating FRS to DFSR for SYSVOL and other replication, will that have any negative effect on Windows 2003 servers (or other servers) currently on the domain?5. Can you upgrade to a 2016 Forest/Domain level with 2003 Servers on the domain?1.
Yes, so long as they are NOT domain controllers.2. Sites are based on Subnets that you create in AD Sites & Services.
You can delete a site if you wish from AD Sites and Services. Then you can associate your subnets with the site you want.3. You only need to run RODC prep if you are going to use and RODC. ADPrep is now handled by the promotion wizard in 2016. This is not something you have to run manually.4.
As long as the 03 servers are not domain controllers. You cannot proceed with the migration in you have a 2003 DC.5. Raising your DFL/FFL determines the lowest level DC you can have in your domain/forest. If you raise it to 2016 you can only have 2016+ domain controllers. You would not be able to promote any lower level DCs. Your DFL/FFL will not impact member servers.
Verifying that adprep /forestprep completed successfullyWhen the adprep /forestprep command completes, a message appears in the Command Prompt window to indicate that Adprep has successfully updated the forest-wide information. You can also use the following procedure to verify that adprep /forestprep completed successfully.To verify that adprep /forestprep completed successfully.
Log on to an administrative workstation that has ADSIEdit installed.