| Author | Messages | |
Julio.muniz
Posts:24
 | | 06/03/2010 2:36 PM |
| Hello,
We currently have 10 Domain controllers running Win2k8 STD x64 on 5
different sites. A child domain was requested for a particular group.
They have purchased Windows 2k8 STD R2 x64 for the child domain
controllers. Should I be concerned with any compatibility issues with
the different versions of OS if the parent domain is not R2 ? Any input
is greatly appreciated.
Regards,
Julio
| | | |
| RickSheikh
Posts:373
| | 06/03/2010 2:50 PM |
| The child domain can not be of an higher functional level than that of its
parent domain (forest). You would have to prep the forest with R2 updates
before you introduce an 08 R2 DC (as child domain's first DC).
However, I would diligently question the technical requirements of
additional domain for that particular group within the same company.
On Thu, Jun 3, 2010 at 8:32 AM, Muniz, Julio <Julio.Muniz@omgeo.com> wrote:
> Hello,
>
> We currently have 10 Domain controllers running Win2k8 STD x64 on 5
> different sites. A child domain was requested for a particular group.
> They have purchased Windows 2k8 STD R2 x64 for the child domain
> controllers. Should I be concerned with any compatibility issues with
> the different versions of OS if the parent domain is not R2 ? Any input
> is greatly appreciated.
>
> Regards,
> Julio
>
>
| | | |
| Parzival
Posts:107
| | 06/03/2010 2:53 PM |
| You need to upgrade your schema prior to promoting that 2008 R2 server to a domain controller
See: http://sharepointgeorge.com/2009/introducing-windows-2008-r2-domain-controller/
_R
-----Original Message-----
From: activedir-owner@mail.activedir.org [mailto:activedir-owner@mail.activedir.org] On Behalf Of Muniz, Julio
Sent: Thursday, June 03, 2010 3:33 PM
To: activedir@mail.activedir.org
Subject: [ActiveDir] Win2k8 vs Win2k8 R2 for Domain Controllers
Hello,
We currently have 10 Domain controllers running Win2k8 STD x64 on 5 different sites. A child domain was requested for a particular group.
They have purchased Windows 2k8 STD R2 x64 for the child domain controllers. Should I be concerned with any compatibility issues with the different versions of OS if the parent domain is not R2 ? Any input is greatly appreciated.
Regards,
Julio
| | | |
| bdesmond
Posts:977
| | 06/03/2010 3:02 PM |
| That's incorrect.
http://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels(WS.10).aspx
* You cannot set the domain functional level to a value that is lower than the forest functional level, but you can set it to a value that is equal to or higher than the forest functional level.
Thanks,
Brian Desmond
brian@briandesmond.com
c - 312.731.3132
From: activedir-owner@mail.activedir.org [mailto:activedir-owner@mail.activedir.org] On Behalf Of Rick Sheikh
Sent: Thursday, June 03, 2010 8:49 AM
To: activedir@mail.activedir.org
Subject: Re: [ActiveDir] Win2k8 vs Win2k8 R2 for Domain Controllers
The child domain can not be of an higher functional level than that of its parent domain (forest). You would have to prep the forest with R2 updates before you introduce an 08 R2 DC (as child domain's first DC).
However, I would diligently question the technical requirements of additional domain for that particular group within the same company.
On Thu, Jun 3, 2010 at 8:32 AM, Muniz, Julio <Julio.Muniz@omgeo.com<mailto:Julio.Muniz@omgeo.com>> wrote:
Hello,
We currently have 10 Domain controllers running Win2k8 STD x64 on 5
different sites. A child domain was requested for a particular group.
They have purchased Windows 2k8 STD R2 x64 for the child domain
controllers. Should I be concerned with any compatibility issues with
the different versions of OS if the parent domain is not R2 ? Any input
is greatly appreciated.
Regards,
Julio
| | | |
| RickSheikh
Posts:373
| | 06/03/2010 3:06 PM |
| I stand corrected. But he would have to prep the forest however.
Thanks Brian.
On Thu, Jun 3, 2010 at 8:58 AM, Brian Desmond <brian@briandesmond.com>wrote:
> *That’s incorrect.*
>
> * *
>
> *
> http://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels(WS.10).aspx<http://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels%28WS.10%29.aspx>
> *
>
> * *
>
> - You cannot set the domain functional level to a value that is lower
> than the forest functional level, but you can set it to a value that is equal
> to or higher than the forest functional level.
>
> * *
>
> * *
>
> *Thanks,*
>
> *Brian Desmond*
>
> *brian@briandesmond.com*
>
> * *
>
> *c – 312.731.3132*
>
> * *
>
> *From:* activedir-owner@mail.activedir.org [mailto:
> activedir-owner@mail.activedir.org] *On Behalf Of *Rick Sheikh
> *Sent:* Thursday, June 03, 2010 8:49 AM
>
> *To:* activedir@mail.activedir.org
> *Subject:* Re: [ActiveDir] Win2k8 vs Win2k8 R2 for Domain Controllers
>
>
>
> The child domain can not be of an higher functional level than that of its
> parent domain (forest). You would have to prep the forest with R2 updates
> before you introduce an 08 R2 DC (as child domain's first DC).
>
> However, I would diligently question the technical requirements of
> additional domain for that particular group within the same company.
>
> On Thu, Jun 3, 2010 at 8:32 AM, Muniz, Julio <Julio.Muniz@omgeo.com>
> wrote:
>
> Hello,
>
> We currently have 10 Domain controllers running Win2k8 STD x64 on 5
> different sites. A child domain was requested for a particular group.
> They have purchased Windows 2k8 STD R2 x64 for the child domain
> controllers. Should I be concerned with any compatibility issues with
> the different versions of OS if the parent domain is not R2 ? Any input
> is greatly appreciated.
>
> Regards,
> Julio
>
>
>
| | | |
| aansari
Posts:67
| | 06/07/2010 2:52 AM |
| There is a compatibility issue with OCS and Windows 2008 R2 AD. Just check
that before you apply that forest prep.
http://blogs.technet.com/b/toml/archive/2009/11/19/ocs-2007-r2-and-windows-2008-r2-what-is-the-status.aspx
<http://blogs.technet.com/b/toml/archive/2009/11/19/ocs-2007-r2-and-windows-2008-r2-what-is-the-status.aspx>I
am in this situation myself, cannot upgrade to AD R2 due to OCS compatiblity
issue.
Thanks,
Adeel
On Thu, Jun 3, 2010 at 9:04 AM, Rick Sheikh <ricksheikh@gmail.com> wrote:
> I stand corrected. But he would have to prep the forest however.
>
> Thanks Brian.
>
>
> On Thu, Jun 3, 2010 at 8:58 AM, Brian Desmond <brian@briandesmond.com>wrote:
>
>> *That’s incorrect.*
>>
>> * *
>>
>> *
>> http://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels(WS.10).aspx<http://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels%28WS.10%29.aspx>
>> *
>>
>> * *
>>
>> - You cannot set the domain functional level to a value that is lower
>> than the forest functional level, but you can set it to a value that is equal
>> to or higher than the forest functional level.
>>
>> * *
>>
>> * *
>>
>> *Thanks,*
>>
>> *Brian Desmond*
>>
>> *brian@briandesmond.com*
>>
>> * *
>>
>> *c – 312.731.3132*
>>
>> * *
>>
>> *From:* activedir-owner@mail.activedir.org [mailto:
>> activedir-owner@mail.activedir.org] *On Behalf Of *Rick Sheikh
>> *Sent:* Thursday, June 03, 2010 8:49 AM
>>
>> *To:* activedir@mail.activedir.org
>> *Subject:* Re: [ActiveDir] Win2k8 vs Win2k8 R2 for Domain Controllers
>>
>>
>>
>> The child domain can not be of an higher functional level than that of its
>> parent domain (forest). You would have to prep the forest with R2 updates
>> before you introduce an 08 R2 DC (as child domain's first DC).
>>
>> However, I would diligently question the technical requirements of
>> additional domain for that particular group within the same company.
>>
>> On Thu, Jun 3, 2010 at 8:32 AM, Muniz, Julio <Julio.Muniz@omgeo.com>
>> wrote:
>>
>> Hello,
>>
>> We currently have 10 Domain controllers running Win2k8 STD x64 on 5
>> different sites. A child domain was requested for a particular group.
>> They have purchased Windows 2k8 STD R2 x64 for the child domain
>> controllers. Should I be concerned with any compatibility issues with
>> the different versions of OS if the parent domain is not R2 ? Any input
>> is greatly appreciated.
>>
>> Regards,
>> Julio
>>
>>
>>
>
>
--
Adeel Ansari
| | | |
| neil.ruston@credit-suisse.com
Posts:0
| | 06/07/2010 10:06 AM |
| I think that is old [stale] news; check here:
http://www.microsoft.com/windowsserver2008/en/us/supported-applications.
aspx
neil
From: activedir-owner@mail.activedir.org
[mailto:activedir-owner@mail.activedir.org] On Behalf Of Adeel Ansari
Sent: 07 June 2010 02:52
To: activedir@mail.activedir.org
Subject: Re: [ActiveDir] Win2k8 vs Win2k8 R2 for Domain Controllers
There is a compatibility issue with OCS and Windows 2008 R2 AD. Just
check that before you apply that forest prep.
http://blogs.technet.com/b/toml/archive/2009/11/19/ocs-2007-r2-and-windo
ws-2008-r2-what-is-the-status.aspx
I am in this situation myself, cannot upgrade to AD R2 due to OCS
compatiblity issue.
Thanks,
Adeel
On Thu, Jun 3, 2010 at 9:04 AM, Rick Sheikh <ricksheikh@gmail.com>
wrote:
I stand corrected. But he would have to prep the forest however.
Thanks Brian.
On Thu, Jun 3, 2010 at 8:58 AM, Brian Desmond <brian@briandesmond.com>
wrote:
That's incorrect.
http://technet.microsoft.com/en-us/library/understanding-active-director
y-functional-levels(WS.10).aspx
<http://technet.microsoft.com/en-us/library/understanding-active-directo
ry-functional-levels%28WS.10%29.aspx>
* You cannot set the domain functional level to a value that is
lower than the forest functional level, but you can set it to a value
that is equal to or higher than the forest functional level.
Thanks,
Brian Desmond
brian@briandesmond.com
c - 312.731.3132
From: activedir-owner@mail.activedir.org
[mailto:activedir-owner@mail.activedir.org] On Behalf Of Rick Sheikh
Sent: Thursday, June 03, 2010 8:49 AM
To: activedir@mail.activedir.org
Subject: Re: [ActiveDir] Win2k8 vs Win2k8 R2 for Domain Controllers
The child domain can not be of an higher functional level than that of
its parent domain (forest). You would have to prep the forest with R2
updates before you introduce an 08 R2 DC (as child domain's first DC).
However, I would diligently question the technical requirements of
additional domain for that particular group within the same company.
On Thu, Jun 3, 2010 at 8:32 AM, Muniz, Julio <Julio.Muniz@omgeo.com>
wrote:
Hello,
We currently have 10 Domain controllers running Win2k8 STD x64 on 5
different sites. A child domain was requested for a particular group.
They have purchased Windows 2k8 STD R2 x64 for the child domain
controllers. Should I be concerned with any compatibility issues with
the different versions of OS if the parent domain is not R2 ? Any input
is greatly appreciated.
Regards,
Julio
--
Adeel Ansari
===============================================================================
Please access the attached hyperlink for an important electronic communications disclaimer:
http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
===============================================================================
| | | |
| SaucyWrong
Posts:54
| | 06/07/2010 2:27 PM |
| We just tested this last week. What we discovered was that when you perform
the W2K8 R2 *domain prep, *this will knock out OCS 2k7 R2's domain prep.
The domains that you have prepped for W2K8 R2 will appear unprepped for
OCS. All OCS 2k7 R2 features worked, but if you went to add another OCS
server to your environment, you won't be able to do that until you rerun the
OCS domain prep in those domains.
We didn't see any conflict when just running the forest prep for W2K8 R2,
however.
I also know from a PSS case we opened, that OCS R2 group chat doesn't work
properly if the OCS server is trying to talk to a W2K8 R2 GC. I know
Microsoft was supposed to have released a hotfix for OCS that corrected this
back in April, but I'm not sure if they actually released it. We haven't
gotten so far as promoting the first W2K8 DC yet in our environment.
Thanks,
Matt
On Mon, Jun 7, 2010 at 5:04 AM, Ruston, Neil
<neil.ruston@credit-suisse.com>wrote:
> I think that is old [stale] news; check here:
> http://www.microsoft.com/windowsserver2008/en/us/supported-applications.aspx
>
>
>
>
>
> neil
>
>
>
> *From:* activedir-owner@mail.activedir.org [mailto:
> activedir-owner@mail.activedir.org] *On Behalf Of *Adeel Ansari
> *Sent:* 07 June 2010 02:52
>
> *To:* activedir@mail.activedir.org
> *Subject:* Re: [ActiveDir] Win2k8 vs Win2k8 R2 for Domain Controllers
>
>
>
> There is a compatibility issue with OCS and Windows 2008 R2 AD. Just check
> that before you apply that forest prep.
>
>
> http://blogs.technet.com/b/toml/archive/2009/11/19/ocs-2007-r2-and-windows-2008-r2-what-is-the-status.aspx
>
>
>
> I am in this situation myself, cannot upgrade to AD R2 due to OCS
> compatiblity issue.
>
>
>
> Thanks,
>
> Adeel
>
>
>
> On Thu, Jun 3, 2010 at 9:04 AM, Rick Sheikh <ricksheikh@gmail.com> wrote:
>
> I stand corrected. But he would have to prep the forest however.
>
> Thanks Brian.
>
>
>
> On Thu, Jun 3, 2010 at 8:58 AM, Brian Desmond <brian@briandesmond.com>
> wrote:
>
> *That’s incorrect.*
>
> * *
>
> *
> http://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels(WS.10).aspx<http://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels%28WS.10%29.aspx>
> *
>
> * *
>
> - You cannot set the domain functional level to a value that is lower
> than the forest functional level, but you can set it to a value that is equal
> to or higher than the forest functional level.
>
> * *
>
> * *
>
> *Thanks,*
>
> *Brian Desmond*
>
> *brian@briandesmond.com*
>
> * *
>
> *c – 312.731.3132*
>
> * *
>
> *From:* activedir-owner@mail.activedir.org [mailto:
> activedir-owner@mail.activedir.org] *On Behalf Of *Rick Sheikh
> *Sent:* Thursday, June 03, 2010 8:49 AM
>
>
> *To:* activedir@mail.activedir.org
>
> *Subject:* Re: [ActiveDir] Win2k8 vs Win2k8 R2 for Domain Controllers
>
>
>
> The child domain can not be of an higher functional level than that of its
> parent domain (forest). You would have to prep the forest with R2 updates
> before you introduce an 08 R2 DC (as child domain's first DC).
>
> However, I would diligently question the technical requirements of
> additional domain for that particular group within the same company.
>
> On Thu, Jun 3, 2010 at 8:32 AM, Muniz, Julio <Julio.Muniz@omgeo.com>
> wrote:
>
> Hello,
>
> We currently have 10 Domain controllers running Win2k8 STD x64 on 5
> different sites. A child domain was requested for a particular group.
> They have purchased Windows 2k8 STD R2 x64 for the child domain
> controllers. Should I be concerned with any compatibility issues with
> the different versions of OS if the parent domain is not R2 ? Any input
> is greatly appreciated.
>
> Regards,
> Julio
>
>
>
>
>
>
>
>
> --
> Adeel Ansari
>
>
>
> ==============================================================================
> Please access the attached hyperlink for an important electronic
> communications disclaimer:
> http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
>
> ==============================================================================
>
>
| | | |
| aansari
Posts:67
| | 06/07/2010 4:39 PM |
| Matt, correct, I was told by our TAM that group chat doesnt work which is an
important feature for my company.
On Mon, Jun 7, 2010 at 8:26 AM, Matt Quinn <saucy.wrong@gmail.com> wrote:
> We just tested this last week. What we discovered was that when you
> perform the W2K8 R2 *domain prep, *this will knock out OCS 2k7 R2's domain
> prep. The domains that you have prepped for W2K8 R2 will appear unprepped
> for OCS. All OCS 2k7 R2 features worked, but if you went to add another OCS
> server to your environment, you won't be able to do that until you rerun the
> OCS domain prep in those domains.
>
> We didn't see any conflict when just running the forest prep for W2K8 R2,
> however.
>
> I also know from a PSS case we opened, that OCS R2 group chat doesn't work
> properly if the OCS server is trying to talk to a W2K8 R2 GC. I know
> Microsoft was supposed to have released a hotfix for OCS that corrected this
> back in April, but I'm not sure if they actually released it. We haven't
> gotten so far as promoting the first W2K8 DC yet in our environment.
>
> Thanks,
> Matt
>
>
> On Mon, Jun 7, 2010 at 5:04 AM, Ruston, Neil <
> neil.ruston@credit-suisse.com> wrote:
>
>> I think that is old [stale] news; check here:
>> http://www.microsoft.com/windowsserver2008/en/us/supported-applications.aspx
>>
>>
>>
>>
>>
>> neil
>>
>>
>>
>> *From:* activedir-owner@mail.activedir.org [mailto:
>> activedir-owner@mail.activedir.org] *On Behalf Of *Adeel Ansari
>> *Sent:* 07 June 2010 02:52
>>
>> *To:* activedir@mail.activedir.org
>> *Subject:* Re: [ActiveDir] Win2k8 vs Win2k8 R2 for Domain Controllers
>>
>>
>>
>> There is a compatibility issue with OCS and Windows 2008 R2 AD. Just check
>> that before you apply that forest prep.
>>
>>
>> http://blogs.technet.com/b/toml/archive/2009/11/19/ocs-2007-r2-and-windows-2008-r2-what-is-the-status.aspx
>>
>>
>>
>> I am in this situation myself, cannot upgrade to AD R2 due to OCS
>> compatiblity issue.
>>
>>
>>
>> Thanks,
>>
>> Adeel
>>
>>
>>
>> On Thu, Jun 3, 2010 at 9:04 AM, Rick Sheikh <ricksheikh@gmail.com> wrote:
>>
>> I stand corrected. But he would have to prep the forest however.
>>
>> Thanks Brian.
>>
>>
>>
>> On Thu, Jun 3, 2010 at 8:58 AM, Brian Desmond <brian@briandesmond.com>
>> wrote:
>>
>> *That’s incorrect.*
>>
>> * *
>>
>> *
>> http://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels(WS.10).aspx<http://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels%28WS.10%29.aspx>
>> *
>>
>> * *
>>
>> - You cannot set the domain functional level to a value that is lower
>> than the forest functional level, but you can set it to a value that is equal
>> to or higher than the forest functional level.
>>
>> * *
>>
>> * *
>>
>> *Thanks,*
>>
>> *Brian Desmond*
>>
>> *brian@briandesmond.com*
>>
>> * *
>>
>> *c – 312.731.3132*
>>
>> * *
>>
>> *From:* activedir-owner@mail.activedir.org [mailto:
>> activedir-owner@mail.activedir.org] *On Behalf Of *Rick Sheikh
>> *Sent:* Thursday, June 03, 2010 8:49 AM
>>
>>
>> *To:* activedir@mail.activedir.org
>>
>> *Subject:* Re: [ActiveDir] Win2k8 vs Win2k8 R2 for Domain Controllers
>>
>>
>>
>> The child domain can not be of an higher functional level than that of its
>> parent domain (forest). You would have to prep the forest with R2 updates
>> before you introduce an 08 R2 DC (as child domain's first DC).
>>
>> However, I would diligently question the technical requirements of
>> additional domain for that particular group within the same company.
>>
>> On Thu, Jun 3, 2010 at 8:32 AM, Muniz, Julio <Julio.Muniz@omgeo.com>
>> wrote:
>>
>> Hello,
>>
>> We currently have 10 Domain controllers running Win2k8 STD x64 on 5
>> different sites. A child domain was requested for a particular group.
>> They have purchased Windows 2k8 STD R2 x64 for the child domain
>> controllers. Should I be concerned with any compatibility issues with
>> the different versions of OS if the parent domain is not R2 ? Any input
>> is greatly appreciated.
>>
>> Regards,
>> Julio
>>
>>
>>
>>
>>
>>
>>
>>
>> --
>> Adeel Ansari
>>
>>
>>
>> ==============================================================================
>> Please access the attached hyperlink for an important electronic
>> communications disclaimer:
>> http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
>>
>> ==============================================================================
>>
>>
>
--
Adeel Ansari
| | | |
| SaucyWrong
Posts:54
| | 06/08/2010 2:46 PM |
| You may want to do some testing on this--my testing showed that the W2K8 R2
forest prep, this had no ill effect on group chat. When we did the W2K8 R2
domain prep, this knocked out OCS's domain prep, but group chat continued to
function. I haven't gone this far yet, but I believe OCS group chat will
only truly break if you try to force it to talk to a W2K8 R2 DC. That is,
unless you apply the group chat hot fix in advance.
Thanks,
Matt
On Mon, Jun 7, 2010 at 11:37 AM, Adeel Ansari <adeelsansari@gmail.com>wrote:
> Matt, correct, I was told by our TAM that group chat doesnt work which is
> an important feature for my company.
>
>
> On Mon, Jun 7, 2010 at 8:26 AM, Matt Quinn <saucy.wrong@gmail.com> wrote:
>
>> We just tested this last week. What we discovered was that when you
>> perform the W2K8 R2 *domain prep, *this will knock out OCS 2k7 R2's
>> domain prep. The domains that you have prepped for W2K8 R2 will appear
>> unprepped for OCS. All OCS 2k7 R2 features worked, but if you went to add
>> another OCS server to your environment, you won't be able to do that until
>> you rerun the OCS domain prep in those domains.
>>
>> We didn't see any conflict when just running the forest prep for W2K8 R2,
>> however.
>>
>> I also know from a PSS case we opened, that OCS R2 group chat doesn't work
>> properly if the OCS server is trying to talk to a W2K8 R2 GC. I know
>> Microsoft was supposed to have released a hotfix for OCS that corrected this
>> back in April, but I'm not sure if they actually released it. We haven't
>> gotten so far as promoting the first W2K8 DC yet in our environment.
>>
>> Thanks,
>> Matt
>>
>>
>> On Mon, Jun 7, 2010 at 5:04 AM, Ruston, Neil <
>> neil.ruston@credit-suisse.com> wrote:
>>
>>> I think that is old [stale] news; check here:
>>> http://www.microsoft.com/windowsserver2008/en/us/supported-applications.aspx
>>>
>>>
>>>
>>>
>>>
>>> neil
>>>
>>>
>>>
>>> *From:* activedir-owner@mail.activedir.org [mailto:
>>> activedir-owner@mail.activedir.org] *On Behalf Of *Adeel Ansari
>>> *Sent:* 07 June 2010 02:52
>>>
>>> *To:* activedir@mail.activedir.org
>>> *Subject:* Re: [ActiveDir] Win2k8 vs Win2k8 R2 for Domain Controllers
>>>
>>>
>>>
>>> There is a compatibility issue with OCS and Windows 2008 R2 AD. Just
>>> check that before you apply that forest prep.
>>>
>>>
>>> http://blogs.technet.com/b/toml/archive/2009/11/19/ocs-2007-r2-and-windows-2008-r2-what-is-the-status.aspx
>>>
>>>
>>>
>>> I am in this situation myself, cannot upgrade to AD R2 due to OCS
>>> compatiblity issue.
>>>
>>>
>>>
>>> Thanks,
>>>
>>> Adeel
>>>
>>>
>>>
>>> On Thu, Jun 3, 2010 at 9:04 AM, Rick Sheikh <ricksheikh@gmail.com>
>>> wrote:
>>>
>>> I stand corrected. But he would have to prep the forest however.
>>>
>>> Thanks Brian.
>>>
>>>
>>>
>>> On Thu, Jun 3, 2010 at 8:58 AM, Brian Desmond <brian@briandesmond.com>
>>> wrote:
>>>
>>> *That’s incorrect.*
>>>
>>> * *
>>>
>>> *
>>> http://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels(WS.10).aspx<http://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels%28WS.10%29.aspx>
>>> *
>>>
>>> * *
>>>
>>> - You cannot set the domain functional level to a value that is lower
>>> than the forest functional level, but you can set it to a value that is equal
>>> to or higher than the forest functional level.
>>>
>>> * *
>>>
>>> * *
>>>
>>> *Thanks,*
>>>
>>> *Brian Desmond*
>>>
>>> *brian@briandesmond.com*
>>>
>>> * *
>>>
>>> *c – 312.731.3132*
>>>
>>> * *
>>>
>>> *From:* activedir-owner@mail.activedir.org [mailto:
>>> activedir-owner@mail.activedir.org] *On Behalf Of *Rick Sheikh
>>> *Sent:* Thursday, June 03, 2010 8:49 AM
>>>
>>>
>>> *To:* activedir@mail.activedir.org
>>>
>>> *Subject:* Re: [ActiveDir] Win2k8 vs Win2k8 R2 for Domain Controllers
>>>
>>>
>>>
>>> The child domain can not be of an higher functional level than that of
>>> its parent domain (forest). You would have to prep the forest with R2
>>> updates before you introduce an 08 R2 DC (as child domain's first DC).
>>>
>>> However, I would diligently question the technical requirements of
>>> additional domain for that particular group within the same company.
>>>
>>> On Thu, Jun 3, 2010 at 8:32 AM, Muniz, Julio <Julio.Muniz@omgeo.com>
>>> wrote:
>>>
>>> Hello,
>>>
>>> We currently have 10 Domain controllers running Win2k8 STD x64 on 5
>>> different sites. A child domain was requested for a particular group.
>>> They have purchased Windows 2k8 STD R2 x64 for the child domain
>>> controllers. Should I be concerned with any compatibility issues with
>>> the different versions of OS if the parent domain is not R2 ? Any input
>>> is greatly appreciated.
>>>
>>> Regards,
>>> Julio
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> --
>>> Adeel Ansari
>>>
>>>
>>>
>>> ==============================================================================
>>> Please access the attached hyperlink for an important electronic
>>> communications disclaimer:
>>> http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
>>>
>>> ==============================================================================
>>>
>>>
>>
>
>
> --
> Adeel Ansari
>
>
>
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