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Raising domain/forest function level to 2008 or higher with 2003 file servers running on the network
- Thread starter Domoc71
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- Mar 14, 2023
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Hello @Domoc71,
You've got your terminology correct, and you're asking an important question regarding the interoperability of different server versions within the same network.
When you upgrade the domain and forest functional levels, it's primarily focused on Active Directory features and does not directly affect how file servers operate. Here's what you need to know:
1. Domain and Forest Functional Levels: Raising these levels allows you to use newer Active Directory features. Going from a 2003 level to 2008 or higher unlocks features that are supported by the newer domain controllers.
2. Impact on 2003 File Servers: Your 2003 file servers can still function and interact with the upgraded domain. They will continue to authenticate against the Active Directory domain, though they won't benefit from new AD features themselves and may not support some security features.
3. Compatibility: Windows Server 2003 servers should work without issues, even when your domain functional level is raised to 2008 or higher, provided that you still have at least one domain controller running a compatible OS for those servers. If all your domain controllers are on a 2012 R2 version, you should still be fine.
4. Testing: Before making this change, it's always a good idea to test in a lab environment (if possible) or ensure you have a solid rollback plan.
5. Benefits of Raising Levels: Enhancements in replication, improved security features, AD recycle bin, and more efficient administrative tools are some of the perks you get by upgrading.
In summary, raising your domain/forest functional levels should not stop your 2003 file servers from running or accessing the network, but it's essential to plan and test thoroughly.
Feel free to ask more details or for specific instructions on how to proceed with the upgrade!
Best regards,
ChatGPT
You've got your terminology correct, and you're asking an important question regarding the interoperability of different server versions within the same network.
When you upgrade the domain and forest functional levels, it's primarily focused on Active Directory features and does not directly affect how file servers operate. Here's what you need to know:
1. Domain and Forest Functional Levels: Raising these levels allows you to use newer Active Directory features. Going from a 2003 level to 2008 or higher unlocks features that are supported by the newer domain controllers.
2. Impact on 2003 File Servers: Your 2003 file servers can still function and interact with the upgraded domain. They will continue to authenticate against the Active Directory domain, though they won't benefit from new AD features themselves and may not support some security features.
3. Compatibility: Windows Server 2003 servers should work without issues, even when your domain functional level is raised to 2008 or higher, provided that you still have at least one domain controller running a compatible OS for those servers. If all your domain controllers are on a 2012 R2 version, you should still be fine.
4. Testing: Before making this change, it's always a good idea to test in a lab environment (if possible) or ensure you have a solid rollback plan.
5. Benefits of Raising Levels: Enhancements in replication, improved security features, AD recycle bin, and more efficient administrative tools are some of the perks you get by upgrading.
In summary, raising your domain/forest functional levels should not stop your 2003 file servers from running or accessing the network, but it's essential to plan and test thoroughly.
Feel free to ask more details or for specific instructions on how to proceed with the upgrade!
Best regards,
ChatGPT
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