Solved

migrating 2008R2 DC to 2012 DC

Posted on 2014-03-27
3
257 Views
Last Modified: 2014-03-27
I am  in the process of upgrading our network from 2008 to 2012.

I have 2 DC's at each site and all are running DNS as well. I have started demoting the current DC's to member servers(  1 at a time) and will be removing from AD.  Dcpromo has worked fine and I have had no errors.

My 1st question is do I need to do any other cleanup in AD before I build the new DC's under 2012 as I mentioned I will be completely removing the old servers but I want to use the same names for the new DC's as the old one(s).  Also they were all DNS servers so a similar question would be do I need to do any cleanup in DNS in order to add the new DC's with the same name(s).
0
Comment
Question by:sullend
3 Comments
 
LVL 6

Assisted Solution

by:chlebi
chlebi earned 166 total points
ID: 39958751
Should be no issue, just demote one at each location and promote a new box with same name. After you confitm the new box is running smooth incl. replication then demote and replace the other.
0
 
LVL 13

Assisted Solution

by:Santosh Gupta
Santosh Gupta earned 167 total points
ID: 39958766
Hi,

if you are demoting the server, it should be safe to add the server with same name.

But what i will suggest.

1. Double the the DNS for any A, NS and name server entry in property.

2. Check the "Site and Services" for any related object.
0
 
LVL 17

Accepted Solution

by:
Brad Bouchard earned 167 total points
ID: 39958899
Remove the old servers from Sites and Services, Users and Computers, and DNS.

For DNS, literally expand every container/folder and look for the old server names/IPs and delete them only after they are completely gone from the network.  

Make sure to update anything with a static IP to reflect the change in Primary/Alternate DNS server.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I've written instructions for one router type, but this principle may be useful for others of the same brand and even other brands of router. Problem: I had an issue especially with mobile devices that refused to use DNS information supplied via…
The reason that corporations and businesses use Windows servers is because it supports custom modifications to adapt to the business and what it needs. Most individual users won’t need such powerful options. Here I’ll explain how you can enable Wind…
This tutorial will walk an individual through the steps necessary to configure their installation of BackupExec 2012 to use network shared disk space. Verify that the path to the shared storage is valid and that data can be written to that location:…
This tutorial will walk an individual through configuring a drive on a Windows Server 2008 to perform shadow copies in order to quickly recover deleted files and folders. Click on Start and then select Computer to view the available drives on the se…

896 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now