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Home » Microsoft » Windows Server » Active Directory » Two DC's acting as Backup DC, how to enable one of them as Primary DC
Two DC's acting as Backup DC, how to enable one of them as Primary DC [message #358181] Sun, 03 January 2010 08:23 Go to next message
jorgefb1  is currently offline jorgefb1
Messages: 4
Registered: January 2010
Junior Member
Hello Everyone,

I inherited a network that has two domain controllers acting as backup
domain controllers. How can I promote one of them to act as a primary domain
controller.
I noticed when opening Active Directory Users and Computer > Right clicked
on the domain > Operations Masters > RID, PDC, etc. display "Error".

Any help or direction is appreciated!
Thanks!
Re: Two DC's acting as Backup DC, how to enable one of them as Primary DC [message #358194 is a reply to message #358181] Sun, 03 January 2010 15:13 Go to previous messageGo to next message
meiweb  is currently offline meiweb  Germany
Messages: 2225
Registered: September 2009
Senior Member
Hello J. Forti,

If i understand you correct, 2 DCs are existing and none of them is listed
as FSMO role holder. Please check this with "netdom query fsmo" in a command
prompt. If this is the case i assume there was a problem in the network and
some other DCs, holding the FSMO roles are crashed or not properly removed,
use the following article to seize the FSMO roles and cleanup AD database,
DNS etc.:
http://support.microsoft.com/kb/555846/en-us

Additional make sure that at least one DC, better both of them are Global
catalog servers:
http://support.microsoft.com/?id=313994

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> Hello Everyone,
>
> I inherited a network that has two domain controllers acting as backup
> domain controllers. How can I promote one of them to act as a primary
> domain
> controller.
> I noticed when opening Active Directory Users and Computer > Right
> clicked
> on the domain > Operations Masters > RID, PDC, etc. display "Error".
> Any help or direction is appreciated!
> Thanks!
Re: Two DC's acting as Backup DC, how to enable one of them as Primary DC [message #358306 is a reply to message #358181] Sun, 03 January 2010 18:24 Go to previous messageGo to next message
aceman  is currently offline aceman  United States
Messages: 5816
Registered: July 2009
Senior Member
"J. Forti" <jorgefb1@hotmail.com> wrote in message
news:B21FD45E-F2A1-40F6-A401-3503C4F8E148@microsoft.com...
> Hello Everyone,
>
> I inherited a network that has two domain controllers acting as backup
> domain controllers. How can I promote one of them to act as a primary
> domain controller.
> I noticed when opening Active Directory Users and Computer > Right clicked
> on the domain > Operations Masters > RID, PDC, etc. display "Error".
>
> Any help or direction is appreciated!
> Thanks!


I would just point out that actually, there is no such thing as promoting a
domain controller to a PDC in the NT4 sense of the term. With Active
Directory in Windows 2000 and newer, the PDC function is actually a FSMO
Role now, which can be transferred (or seized in some scenarios) from one DC
to another DC.

There are 5 FSMO roles:

Domain FSMOs:
1. PDC Emulator
2. RID Master
3. Infrastructure Master

Forest FSMOs:
4. Schema Master
5. Domain Name Master

If you are getting an error that you can't open the Operations Masters
dialogue box, it indicates a serious problem that must be repaired. The
errors can be based on numerous reasons, and wtih the limited info provided
so far, it is difficult to ascertain.

To better help, we'll need the info Meinolf requested, in addition, please
post the following data to better evaluate your infrastructure and help in
starting a diagnosis.

1. Unedited ipconfig /all from each current DC
2. Any Event Log errors (post the EventID# and Source Name)
3. Run a dcdiag /v and provide the results.
4. Provide a background of the current DCs (Windows version, service pack
level, if upgraded, installed fresh, etc)
5. Were there any previous DCs?
6. How are the DCs being backed up? (Windows backup, third party backup such
as Veritas, or Imaging software such as Ghost.)

Thank you,

--
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Please reply back to the newsgroup or forum for collaboration benefit among
responding engineers, and to help others benefit from your resolution.

Ace Fekay, MCT, MCITP EA, MCTS Windows 2008 & Exchange 2007, MCSE & MCSA
2003/2000, MCSA Messaging 2003
Microsoft Certified Trainer

For urgent issues, please contact Microsoft PSS directly. Please check
http://support.microsoft.com for regional support phone numbers.
Re: Two DC's acting as Backup DC, how to enable one of them as Primary DC [message #358518 is a reply to message #358306] Mon, 04 January 2010 02:26 Go to previous messageGo to next message
meiweb  is currently offline meiweb  Germany
Messages: 2225
Registered: September 2009
Senior Member
Hello Ace Fekay [MCT],

I am missing your new status in the footer :-)

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> "J. Forti" <jorgefb1@hotmail.com> wrote in message
> news:B21FD45E-F2A1-40F6-A401-3503C4F8E148@microsoft.com...
>
>> Hello Everyone,
>>
>> I inherited a network that has two domain controllers acting as
>> backup
>> domain controllers. How can I promote one of them to act as a primary
>> domain controller.
>> I noticed when opening Active Directory Users and Computer > Right
>> clicked
>> on the domain > Operations Masters > RID, PDC, etc. display "Error".
>> Any help or direction is appreciated!
>> Thanks!
> I would just point out that actually, there is no such thing as
> promoting a domain controller to a PDC in the NT4 sense of the term.
> With Active Directory in Windows 2000 and newer, the PDC function is
> actually a FSMO Role now, which can be transferred (or seized in some
> scenarios) from one DC to another DC.
>
> There are 5 FSMO roles:
>
> Domain FSMOs:
> 1. PDC Emulator
> 2. RID Master
> 3. Infrastructure Master
> Forest FSMOs:
> 4. Schema Master
> 5. Domain Name Master
> If you are getting an error that you can't open the Operations Masters
> dialogue box, it indicates a serious problem that must be repaired.
> The errors can be based on numerous reasons, and wtih the limited info
> provided so far, it is difficult to ascertain.
>
> To better help, we'll need the info Meinolf requested, in addition,
> please post the following data to better evaluate your infrastructure
> and help in starting a diagnosis.
>
> 1. Unedited ipconfig /all from each current DC
> 2. Any Event Log errors (post the EventID# and Source Name)
> 3. Run a dcdiag /v and provide the results.
> 4. Provide a background of the current DCs (Windows version, service
> pack
> level, if upgraded, installed fresh, etc)
> 5. Were there any previous DCs?
> 6. How are the DCs being backed up? (Windows backup, third party
> backup such
> as Veritas, or Imaging software such as Ghost.)
> Thank you,
>
> This posting is provided "AS-IS" with no warranties or guarantees and
> confers no rights.
>
> Please reply back to the newsgroup or forum for collaboration benefit
> among responding engineers, and to help others benefit from your
> resolution.
>
> Ace Fekay, MCT, MCITP EA, MCTS Windows 2008 & Exchange 2007, MCSE &
> MCSA
> 2003/2000, MCSA Messaging 2003
> Microsoft Certified Trainer
> For urgent issues, please contact Microsoft PSS directly. Please check
> http://support.microsoft.com for regional support phone numbers.
>
Re: Two DC's acting as Backup DC, how to enable one of them as Primary DC [message #358631 is a reply to message #358518] Mon, 04 January 2010 07:01 Go to previous messageGo to next message
aceman  is currently offline aceman  United States
Messages: 5816
Registered: July 2009
Senior Member
"Meinolf Weber [MVP-DS]" <meiweb@(nospam)gmx.de> wrote in message
news:6cb2911dbada8cc5b3f8062fcb3@msnews.microsoft.com...
> Hello Ace Fekay [MCT],
>
> I am missing your new status in the footer :-)
>
> Best regards
>
> Meinolf Weber

I know. My name was misspelled at the signup site. I emailed my lead to get
it straightened out first before filling out the NDA with my correct name.
:-)

Ace
Re: Two DC's acting as Backup DC, how to enable one of them as Primary DC [message #374284 is a reply to message #358194] Thu, 21 January 2010 19:26 Go to previous message
jorgefb1  is currently offline jorgefb1  United States
Messages: 4
Registered: January 2010
Junior Member
Thank you for the prompt response!


"Meinolf Weber [MVP-DS]" <meiweb@(nospam)gmx.de> wrote in message
news:6cb2911dba938cc5ae17faff1b6@msnews.microsoft.com...
> Hello J. Forti,
>
> If i understand you correct, 2 DCs are existing and none of them is listed
> as FSMO role holder. Please check this with "netdom query fsmo" in a
> command prompt. If this is the case i assume there was a problem in the
> network and some other DCs, holding the FSMO roles are crashed or not
> properly removed, use the following article to seize the FSMO roles and
> cleanup AD database, DNS etc.:
> http://support.microsoft.com/kb/555846/en-us
>
> Additional make sure that at least one DC, better both of them are Global
> catalog servers:
> http://support.microsoft.com/?id=313994
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and
> confers no rights.
> ** Please do NOT email, only reply to Newsgroups
> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>
>> Hello Everyone,
>>
>> I inherited a network that has two domain controllers acting as backup
>> domain controllers. How can I promote one of them to act as a primary
>> domain
>> controller.
>> I noticed when opening Active Directory Users and Computer > Right
>> clicked
>> on the domain > Operations Masters > RID, PDC, etc. display "Error".
>> Any help or direction is appreciated!
>> Thanks!
>
>
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