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Demoting a 2nd domain controller

Posted on 2009-07-08
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Last Modified: 2012-05-07
I have a 2ndry DC that needs to come out of service to be reformatted. Dell only put a 12 GB partition on it. As of now it is working fine and DNS is pointed to itself since replication has been fine. Should I point it back to the primary DC DNS or is it ok pointing to itself before DCPROMO to demote it? Also its a global catalog server now, should I uncheck it first? Do any records need to be cleaned up after in DNS?
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Question by:osxla
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7 Comments
 
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Mike Kline earned 2000 total points
ID: 24809303
It is ok to point to itself before demotion and you don't have to uncheck the GC first.
The DNS records should all be cleared during the demotion.
You will need to manually delete the server from sites and services.
So right now you only have one 12 GB partition or is there another drive (or RAID set) there also?
Thanks
 
Mike
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Author Comment

by:osxla
ID: 24809323
Its a RAID 1 with a 12GB C drive and and a 148GB E drive. They made a mistake and put that configuration. I wanted one 160 GB RAID 1. Will I need to make a new site or will the new 2nd DC go to it since its on the same subnet?
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LVL 57

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by:Mike Kline
Mike Kline earned 2000 total points
ID: 24809357
It should go to it because it is in the same subnet.
You can also move the AD files to E if you wanted to http://support.microsoft.com/kb/816120
...but if your ultimate goal is 160 GB RAID 1 then you have to do what you are doing.
Thanks
Mike
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Author Comment

by:osxla
ID: 24809404
ok so let me repeat the steps, DCPROMO is down, remove the old one in sites, add it back to the workgroup, reformat the drive, install DNS, DCPROMO, make sure it went to the proper site and make a GC server again?
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LVL 57

Expert Comment

by:Mike Kline
ID: 24809414
Yeah that should be fine, after reformat and rebuild of the array you install Windows...of course I knew you would do that.
Thanks
 
Mike
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Author Comment

by:osxla
ID: 24809423
ok thanks Mike for always being there, I will try tomorrow morning and open a new post if there is a problem. Just wanted to make sure the steps are right.

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LVL 57

Expert Comment

by:Mike Kline
ID: 24809480
ok thanks...let me know how it goes.
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