In case of failure

Discussion in 'Server Migration' started by Martin Modin, Jul 23, 2004.

  1. Martin Modin

    Martin Modin Guest

    We are in the process of running adprep in our forest.

    What is the best way to prepare in case of failure?

    I know you should perform a sytemstate backup of at least 2 DC's.

    But how do you perform a restore in case anything goes wrong (what to do
    with other DC's and so on), is there any article that describes this?

    Martin Modin, Jul 23, 2004
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  2. Responses inline.

    Either an up to date resume or test first in a lab.
    This is news to me, but much with 2003 still is, though I suppose it can't
    hurt to have 2 system states, why is this a recommendation?
    Just do a search for restoring system state or AD on the MS site and I'm sure they'll be some good articles. I
    would not be surprised if they actually had a dedicated white paper on this
    either off of the main Server site at

    If you're in doubt about any of this, definitely find 2 machines that are
    capable of running 2003 and simulate a botched prep or sabatoge AD on the
    machine and run through a restore process. That way at least if it does
    happen in a production environment, you're not scrambling for books or
    internet articles but have actually been through the ropes once in a lab.
    TheSingingCat, Jul 23, 2004
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  3. Hi Martin,

    Thanks for your posting here.

    You can do is to take the schema master "offline", but not literally. You
    could take the schema master and one other DC and separate them to a lab
    network. Do the adprep on them and make sure it updates and replicates
    successfully. If that works, then connect them back to the network. If
    not, wipe them out (if things were really bad) and start over with some DCs
    on the production network.

    You can use the Ntdsutil.exe tool to size the FSMO roles on the other DC.
    Please refer to the following article.

    Using Ntdsutil.exe to Seize or Transfer FSMO Roles to a Server;EN-US;Q255504

    In fact, Adprep just extends the schema. If the ADPREP fails for some
    reason and we can correct the reasons for failure and run ADPREP again,
    ADPREP can be completed successfully by running second time.


    325379 How to Upgrade Windows 2000 Domain Controllers to Windows Server 2003

    Have a nice day!

    Bob Qin
    Product Support Services
    Microsoft Corporation

    Get Secure! -

    When responding to posts, please "Reply to Group" via your newsreader so
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    Bob Qin [MSFT], Jul 26, 2004
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