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New Exchange Server

Posted on 2008-10-25
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Hi all,
 I am planning to decomission my only exchanger server 2003 server. How do I safely do this ?
The new exchange server  computer will be given the same name.
The domain has 3 domain controllers. I have just one domain.
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Question by:anarine
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leegclystvale earned 50 total points
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Yeah, sounds easier than it would be I reckon. AD in my experience has a habit of not toally cleaning out the schema for tyhe old server.
This is how Microsoft recommend doing it http://technet.microsoft.com/en-us/library/bb124429.aspx
Is the new exchange server 2007?
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by:anarine
ID: 22804973
The new server is exchange 2003.
Will exchange 2007 make a difference ?
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by:leegclystvale
ID: 22805008
EX 2007 should be installed along with the existing server then everything migrated and then cleaned up
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by:anarine
ID: 22805183
The exchanger server is also the first domain controller. However there are additional DCs. Would I need to transfer roles, and would I need to delete AD objects for the old exchange server ?
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by:leegclystvale
ID: 22805284
ok, well it's getting more complex now with it being the first DC.  That article covers what to do when it's a DC. I would transfer the roles if it was my servers, bt I would advise waiting for another experts opinion as I have never done this on a first DC before. Sorry can't help more
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by:Lee W, MVP
ID: 22805354
Once an Exchange Server is setup, you DO NOT want to promote or demote without removing exchange first, otherwise, you will create more serious problems.

WHY do you need to preserve the same name?  That SERIOUSLY complicates things...

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by:leegclystvale
ID: 22805387
Yup, I agree! Be interested in why the same name myself!
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by:anarine
ID: 22805752
By preserving the name, I am guessing that the outlook clients would not need to be reconfigured. We have 100+ users.

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by:Lee W, MVP
ID: 22805966
Assuming you are correct (and I've not had to do this often, so frankly, I don't remember, BUT I DON'T THINK that's the case), you would rather the migration take as long as 2-3 weeks and require installing a new server TWICE.

If you migrate Exchange to a new server, you will move the mailboxes to the new server and the client SHOULD be automatically updated.  Then you would remove the first exchange server.  Otherwise, you'll need to install a temporary server with exchange, migrate EVERYTHING to the temporary server, demote/uninstall the original server, then install the new server - a convoluted process that will require significant time to ensure replication occurs properly.
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by:anarine
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Before I proceed with the migration, does anything else besides the information store need to be backed up ?
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by:Lee W, MVP
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Whenever you make a major change to your network, you should have backups.  I would make sure you have full backups and system state backups of all servers.  You never know when something bizarre will happen...
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by:anarine
ID: 22861748
Is it possible to upgrade exchange server standard 2003 to exchange server enterprise 2003 in the same server?
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by:leegclystvale
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by:anarine
ID: 22885383
I've learnt that exmerge is not supported in 2007. I have used exmerged very much. Will this be a problem in 2007
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