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Windows Server 2008 Thread, adding a server 2008 dc to a 2003 domain in Technical; Hi all I'm in the process of adding a server 2008 server as a dc to a 2003 domain but ...
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    adding a server 2008 dc to a 2003 domain

    Hi all

    I'm in the process of adding a server 2008 server as a dc to a 2003 domain but i want to make sure i'm doing it all right and there a few areas i need some help with.

    Right i have 2 2003 dc's and i'm adding this as the 3rd and later i will remove the older of the 2 2003 dc's. The PDC is named Fred (i didn't name it this ) and the new dc is named dc-01. This is as far as i've gotten.

    1.install server 2008
    2.run the following commands on my 2 2003 dc's
    adprep /forestprep
    adprep /domainprep
    adprep /domainprep /gprep
    adprep /rodcprep
    3.run through dcpromo on my 2008 dc
    4.get a cup or coffee and enjoy my success

    Is this even right? Is there anything i've missed off? such as do i need to back up the ad before this (how do i do this if i do never actually backed up ad before )?
    Will there be any network downtime in this process?
    Also i want the server 2008 server to be the primary dc will my method achieve this?

    Thanks

    Jason

  2. Thanks to jason2234 from:

    albertwt (31st August 2009)

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  4. Thanks to plexer from:

    albertwt (31st August 2009)

  5. #3

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    thanks for the link plexer.

    Do you know if there will be any downtime with this work?
    Just thinking whether to run it tomorrow or to wait for the term next week.

    Thanks

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    cookie_monster's Avatar
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    When adding a DC to the domain there "shouldn't" be any downtime. I don't think you need to run adprep on every DC, if you have all of the FSMO roles on one box then i'd start there.

    I'd be tempted to run the adprep after school just in case, it should take seconds but i'd be cautious.

    You do want a full backup of the box that you run this on, including the system state as this is how you backup the active directory.
    Last edited by cookie_monster; 21st May 2009 at 10:55 AM.

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    I'm getting confused with FSMO also. I'm not sure exactly what it means or stands for any help

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    cookie_monster's Avatar
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    They're probably all on the first installed DC that holds the PDCe role. Follow the links posted above and you can view their locations.

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    right thanks for the links it makes sense now
    Would you all advise i take a backup or is this something that wouldn't really corrupt anything?

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    ozzy's Avatar
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    Quote Originally Posted by jason2234 View Post
    right thanks for the links it makes sense now
    Would you all advise i take a backup or is this something that wouldn't really corrupt anything?
    I alway make sure I have a very recent backup before I do anything with my DC's(make sure this includes the system state) you never know
    Better safe than sorry I alway's say

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    cookie_monster's Avatar
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    At the very least fire up windows backup and run a backup of C: and the system state to a file then copy it somewhere safe. Generally this process runs smoothly but it can go spectacularly wrong

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    I tried this recently and the installer said that you must upgrade ALL DC's in the domain to 2008. So in the end I did not bother. I am sure you can not have just one 2008 DC in a domain with 2003 DC's.

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    Quote Originally Posted by Disease View Post
    I tried this recently and the installer said that you must upgrade ALL DC's in the domain to 2008. So in the end I did not bother. I am sure you can not have just one 2008 DC in a domain with 2003 DC's.
    I would just run it in 2003 mode, from what I remember

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    cookie_monster's Avatar
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    I'm going to double check this but i'm sure you can run mixed domain controllers, if you have a very large network with 100s of DC's you can't update them all at once so you must be able to run mixed for a good period of time.

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    You can run both 2003 & 2008 DCs at the same time (only at 2003 functional level though).

  18. Thanks to Matthew1985 from:

    albertwt (31st August 2009)

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