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Yet another upgrade question

By rgrowcock ·
Hi All,

I have yet another upgrade question that I would like to "bounce" of people. I currently have an NT 4.0 Domain, 1 PDC and 1 BDC, that I would like to upgrade to 2000. The PDC acts as the WINS and DHCP servers as well as a Print server, so I am a little apprehensive about upgrading straight away.

I have seen several posts about setting up another server, BDC, with 4.0, promoting it to the PDC and then upgrading it. When this new server gets promoted, the current PDC will automatically be demoted to a BDC. My question(s) is(are) with this break any of my current setting on the current PDC when it gets demoted to a BDC? Can I leave this BDC online while upgrading the new server to 2K?

I am in serious need of rebuildingmy current PDC, and am not sure it will meet the specs for 2000 server anyhow. My problem is that I need to do this ASAP, due to the fact that I believe this server is failing. It no longer lists itself in the Network Neighborhood, although you can map drives to it from the command line. An ultimately, I am planning on getting a new server, but this is a couple of months away and I don't think this current machine will make it.

Do anyone have any sage advise to give me? Or even to tell me I am "whacked" about the above change over? Please let me know!

TIA!!!

Roger

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Yet another upgrade question

by timwalsh In reply to Yet another upgrade quest ...

Assuming that your PDC will continue to function well enough to synchronize with the new PDC when you promote it, You should not have any problems as far as the domain controller role.

Any other roles this server performs (DHCP, WINS, Print Sserver, etc.) SHOULD continue to function regardless of the actual domain controller (DC) role. These roles do not require that they be installed on a DC.

If you have have questions about the suitability of your present PDC for migration to Win2K, you are following the correct route. Assuming your present BDC is suitable, you could also promote it to PDC to save you the trouble of building another server.

Yes you can leave NT4 BDCs on line during an upgrade to Win2K. Win2K is designed to allow NT4 BDCs to function within an Active Directory domain. One common "Best Practice " that is normally suggested is that you have a BDC that you can take offline (unplug from the network) during the migration to Win2K. This will give you a fall-back position should your upgrade go horribly wrong (bad things can happen). This BDC could be placed back online and promoted to PDC quickly if necessary. Any online BDCs have changes made to their registry during the installation of Active Directory and thus might not be able to be promoted back to PDC in an emergency.

Hope this helps.

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Yet another upgrade question

by rgrowcock In reply to Yet another upgrade quest ...

Tim,

So far, so good. I did the upgrade this morning and haven't seen any major problems, yet. Luckily, the machine I setup yesterday was already 2000 compatible, so the upgrade went pretty well! Thanks for the backup! Roger

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Yet another upgrade question

by rgrowcock In reply to Yet another upgrade quest ...

Tim,

What I've done, I actually brought up a second BDC that I will use for the promotion and upgrade tomorrow. This will give me 2 BDCs, one to unplug and one to upgrade. Once I find out if the upgrade worked or not, I'll remove that other BDCand go on from there. If my upgrade should fail, would I just sync the BDC that I keep off-line with the other BDCs and then promote my ORIGINAL PDC back to the PDC? Any thoughts on that? Thanks for your answer. Roger

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Yet another upgrade question

by rgrowcock In reply to Yet another upgrade quest ...

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