2003 functionality mode

Microsoft Windows server 2008 r2 standar...
January 20, 2010 at 08:32:05
Specs: Windows 2008 R2, 4ghz/3gb
Are there any issues with running all 2008 DC's in
2003 functionality mode. I want to roll out all 2008
servers but management is not ready to migrate
to 2008 functionality mode.

Thank you,

Leto the just


See More: 2003 functionality mode

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#1
January 20, 2010 at 08:43:13
No issues that I am aware of, you just miss out on the extra functionality.

*Note: Any existing Windows 2000–based or Windows Server 2003–based Domain Controllers in the environment will no longer function, and in fact, the upgrading wizard will not allow you to continue with the operation. Before raising functional levels to take advantage of advanced Windows Server 2008 features, ensure that you will never need to install domain controllers running Windows 2000-based or Windows Server 2003–based Domain Controllers in your environment.

Supported Domain controllers – Windows Server 2008.

Features and benefits include all default Active Directory features, all features from the Windows Server 2003 domain functional level, plus:

* Fine-grained password policies – Allows multiple password polices to be applied to different users in the same domain.
* Read-Only Domain Controllers – Allows implementation of domain controllers that only host read-only copy of NTDS database.
* Advanced Encryption Services – (AES 128 and 256) support for the Kerberos protocol.
* Granular auditing – Allows history of object changes in Active Directory.
* Distributed File System Replication (DFSR) – Allows SYSVOL to replicate using DFSR instead of older File Replication Service (FRS). It provides more robust and detailed replication of SYSVOL contents.
* Last Interactive Logon Information – Displays the time of the last successful interactive logon for a user, from what workstation, and the number of failed logon attempts since the last logon.


Hope this answers you question.

Michael


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#2
January 20, 2010 at 11:46:29
Yes and no. So, you are saying that I can Install all Windows
2008 servers at Windows 2003 functional level only if there are
no Windows 2003 DC's left in the environment? Or are you
saying that I cannot raise the functional level to Windows 2008
unless there are no more Windows 2003 DC's in the
environment? I understand the latter to be true.

Thank you,

Leto the just


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#3
January 21, 2010 at 01:19:23
#2.. you cannot raise the functional level to 2008 until all DC's are 2008.

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#4
January 23, 2010 at 16:24:54
Just to be clear... You mention rolling out servers. You can roll out as many servers as you want. They don't care what the domain functional level is. The functional level is only determined by the OS of the domain controllers.

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#5
January 28, 2010 at 09:14:36
Yes, I am only concerned with possible issues with another 2003
DC coming online while we have 2008 DC's in 2003 functional
mode or having all 2008 DC's in 2003 functional mode.

Thank you,

Leto the just


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#6
January 28, 2010 at 18:49:13
If you are in 2008 functional mode, no 2003 DC will be allowed. If you are in 2003 functional mode, you can have 2003 or 2008 dc but will not get all the benefits of the 2008 functional mode as described above.

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