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Adding Second Domain Controller

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Last Modified: 2008-01-09
Hey gang-
Yesterday I added a second domain controller to my domain. Let's call the old domain controller DC1 and the new one DC2. I'm looking forward to eventually retiring DC1 as it is an old tower style and about 7 years old and doesn't look good in my server cage :)

I also have an exchange server...I mention this because my exchange server get's mad when DC1 is restarted and i have to restart the exchange server every time. It's very annoying to get phone calls at 6 am...

DNS is setup and seems to be working on DC2. It's pointing to only itself for DNS, and the ISP's DNS as a forwarder. DC1 is setup the same, points to itself only, and the ISP's DNS as a forwarder. I have DHCP setup on DC2 (with same settings as DC1, but not activated). DHCP scope options are setup to give out DC1 and DC2 for DNS.  I added DC2 as a global catalog server as well.

So onto my questions now..
1) what command tools can i use to verify that things are working properly on DC2? (besides unplugging or shutting down DC1)

2) and what do i need to do in exchange  to make sure exchange can see and use both DC's in case one goes down or gets' restarted?

3) Once I acitvate DHCP on DC2, and stop DHCP on DC1....Will DHCP on DC2 know not to give out already assigned addresses by DC1?



Thanks in advance
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Lee W, MVPTechnology and Business Process Advisor
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Commented:
For those that think Exchange will "seamlessly fail over" think again - if it is bound to the server that has gone down, it will take up to 30 minutes to sort itself out.  DNS records have absolutely nothing to do with it.
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Commented:
Wow everyone's too quick sorry all.

Author

Commented:
<<Wow everyone's too quick sorry all.
That's what I was thinking...LOL
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Commented:
Now it is just a matter of you figuring out who to believe :))

Author

Commented:
Leew-
Yes I did make it a Global Catalog. It looks like replication took place to and from.

JMTshiteya-
Yes, active directory (Windows 2003 R2 compatible). Schema version value =31. I had to run adprep.exe /forestprep on DC1....if that's what your refering too...

Red-
Well, let's just say I dare NOT to bet against you again! I did once in the past about a license question and I ended up called microsoft....you were right.

Alright, let me use these tools and sort everything out. It's been a while since my college lab classes.

Thanks to everyone so far.

Author

Commented:
1) netdiag - everything passed

dcdiag - Everything passed, except...

---------------------------------------------------------------------------------------------------------------------
     Starting test: frsevent
        There are warning or error events within the last 24 hours after the
        SYSVOL has been shared.  Failing SYSVOL replication problems may cause
        Group Policy problems.
        ......................... DC2 failed test frsevent
-------------------------------------------------------------------------------------------------------------------

I checked the sysvol folder everything seemed to copy over to DC2 through replication and everything seems to be there. So i don't know if this is legit or some false warning...

2) Ok, so pretty much nothing I can do about this. That is a weak microsoft design IMHO...

3) You guys answered it.
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Commented:
1) That DCDiag error is nothing major - infact I would expect it for a new server.

2) I agree

3) I think this is the only thing that isn;t going to matter that much - there are 10 ways to do it, and little can go wrong with dhcp

-red
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