NT 4.0 Upgrade to windows 2000

I am planning on Upgrading a NT 4.0 PDC to windows 2003. This PDC is also running exchange 5.5. I am also setting up another 2k server which will be my file server.

The plan is to setup the second server first and add it to the NT 4.0 domain as a menber server. Then stop all the exchange services, upgrade the NT 4.0  to windows 2000 AD. Restart the exchange and test for mail flow.

Do u see any flaws in my plan.

FalconTwoAsked:
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JConchieCommented:
Be aware that you cannot have a 2003 DC in a W2K AD forest.  You must run ForestPrep prior to promotingthe W3K server to a DC.  This adds the W3K schema to your W2K AD........in effect, making it a W3K forest.

I would do an in place upgrade of the PDC to W3K........that will give you a W3K forest right off the bat  .......I would also have a temp Nt4 BDC in place to have a back up in the event of trouble..........if the second w2k box is just going to be a file server and not a second DC there is no need to add it to the Nt4 domain first, just add it to the w2K/W3K domain after you have that configured......

I would strongly suggest that you make that second W2K box a DC also.........or get a basic box that you can turn into a second dc.  Any W2K domain with only on DC is a recipe for disaster....if you lose that box, you have lost your AD and will have to recreate everything from scratch.  In w2k, every DC has a full replica of AD, so if you have more than one, for redundancy, and you lose one box.....you still have your full AD on another and have lost nothing.
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FalconTwoAuthor Commented:
Hello thanks very much but I am a bit confused. First is I do not have a w2k AD forest. Currently I have one server which is a NT 4.0 domain. I was assuming I can upgrade from NT 4.0 to w3k Forest. Or do I have to first Upgrade to w2k, run forest prep, then upgrade again to w3k? Also remember I have exchange 5.5 running on this box and I did not plan on upgrading the exchange.

Again my thought were to stop the exchange services and upgrade the NT 4.0 to w3k and restart the exchange and hopefuilly it will work. Am I wrong?
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JConchieCommented:
Sorry to confuse you,
Yes you can go directly from Nt4 to W3K making that box a DC.........you would then add the second box as a W2K dc

Not sure about your exchange plan......sounds like it should work, but there may be differences so you may want to ask that as a seperate question in the Exchange TA at:
http://oldlook.experts-exchange.com/Networking/Email_Groupwarehttp://oldlook.experts-

and for sure do a complete backup of exchange before proceeding.      set up that NT4 BDC too.
Good luck
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FalconTwoAuthor Commented:
One last question. Why can't I install w3k on the new dell box and add it to the 4.0 domain. Isn.t that possible?

This is the steps I am hoping to take
1. Setup a BDC as a backup and take it off line
2. Setup the new Dell Server with w3k and install Veritas Backup ver 9. BAckup the NT 4.0 server which is the exchange/file server [I want to use this server to backup the NT 4.0 files/exchange server.]
3. Restore the data files to the new server and ensure the file structure matches the old NT 4.0 Server. The new server will now be the file server. Verify the file shares matches the old server etc
4. Do an in place upgrade of the NT 4.0 server to w3k DC with AD. after stopping all the exchange services
5. Restar
t the exchange services and test the mail

I am not sure if I should make the new server a DC at this point or leave it as a member server in the w3k forest.

Now what do you think

Falcon
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JConchieCommented:
Sounds OK.  A few points though:

You will need the backup exec remote agent on the nt4 box, to back it up, if you are putting backup exec on the new dell.

I would make the new server your second DC........for redundancy......you don't want to have just one DC...if you lose it, you lose your whole AD and have to start from scratch.   Once it is promoted, the DC won't cost you much by way of overhead, just the occasional authentication.....so you can still use it as a file server, etc.  ............and it will have that all important copy of your complete AD.
Good luck.
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JConchieCommented:
Answered, in much more detail than original question asked for.
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