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Thread: Upgrade schema for Windows 2008

  1. #1
    jpsrstokato Guest

    Upgrade schema for Windows 2008

    Before we run adprep to prepare infrastructure for Windows 2008, I plan to
    disable outbound replication on the FSMO master.
    If things go wrong, and I neeed to revert, can I restore systemstate from
    backup normally (i.e. without an authoritative AD restore), and then
    re-enable outbound replication.
    i.e. I'm assuming here that if replication has been disabled, an
    authoritative restore is not necessary before it is re-enabled..

    Thanks.



  2. #2
    Meinolf Weber Guest

    Re: Upgrade schema for Windows 2008

    Hello jpsrstokato,

    Never saw anything going wrong during a schema upgrade. It runs correct or
    stops with an error message stated in the adprep logfile.

    Best regards

    Meinolf Weber
    Disclaimer: This posting is provided "AS IS" with no warranties, and confers
    no rights.
    ** Please do NOT email, only reply to Newsgroups
    ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


    > Before we run adprep to prepare infrastructure for Windows 2008, I
    > plan to
    > disable outbound replication on the FSMO master.
    > If things go wrong, and I neeed to revert, can I restore systemstate
    > from
    > backup normally (i.e. without an authoritative AD restore), and then
    > re-enable outbound replication.
    > i.e. I'm assuming here that if replication has been disabled, an
    > authoritative restore is not necessary before it is re-enabled..
    > Thanks.
    >




  3. #3
    Isaac Guest

    Re: Upgrade schema for Windows 2008

    Jpsrstokato,

    As Mmeinolf rightly said, there is always a 99% chance that the schema
    upgrade will go well. But you always have to be cautious for the
    remaining 1%. Suggstion might be to take only the the schema master
    off the network and perform the upgrade. wait until all is well before
    connecting it back to production. Yes, a system state should do

  4. #4
    Jorge de Almeida Pinto [MVP - DS] Guest

    Re: Upgrade schema for Windows 2008

    to update the schema you could:

    Take a copy of your production environment (e.g. a virtual machine that is
    promoted as a RWDC) and get that to your test environment. Cleanup the
    metadata of the virtual DC (use MS KB for how to) in the production
    environment
    Then power the virtual DC on in the test environment and make it healthy by:
    • Seizing ALL the FSMO roles to it using NTDSUTIL
    • Making it a GC if it isn’t one
    • Cleanup the metadata of all the other DCs (use MS KB for how to)
    • Promote another RWDC into that test environment
    • Before the schema create snapshots so that you can revert back to your
    starting scenario when needed
    • Now do the schema update
    • Check event logs
    • Check AD replication

    In your production environment
    • Make sure the DC with the schema master FSMO role (NETDOM QUERY FSMO to
    find that one) has replicated!!! (important because of the initial
    synchronization requirements for FSMO role owners) You could just go into
    Sites and Services and force inbound replication
    • Disable AD replication (inbound and outbound) on the DC that has the
    schema master FSMO role (NETDOM QUERY FSMO to find that one)
    • Disable AD replication (inbound and outbound) on a NEARBY DC (very
    important)
    • Update the AD schema by specifying the DC with the schema FSMO as the
    target DC
    • Check the event logs on the schema FSMO
    • Force AD replication between the schema FSMO DC and the nearby DC using
    REPADMIN /replicate <Dest_DC_LIST> <Source DC_NAME> <Naming Context> /force
    • Check the event logs on the nearby DC
    • If all is good, enable replication on the schema FSMO and the nearby DC


    Just before the schema update do a system state backup of the DCs involved.
    That way you have the most update backup you can get

    if something goes wrong, you need to do a non-authoritative restore. because
    it just involves the schema, make sure to TRANSFER all the FSMO roles of the
    schema master DC (if any) to another DC. That saves you the headache from
    ALSO restoring the other FSMO roles (do this prior to the backup, so that it
    contains the new FSMO role config)


    --

    Cheers,
    (HOPEFULLY THIS INFORMATION HELPS YOU!)

    # Jorge de Almeida Pinto # MVP Identity & Access - Directory Services #

    BLOG (WEB-BASED)--> http://blogs.dirteam.com/blogs/jorge/default.aspx
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    "jpsrstokato" <jpsrstokato@discussions.microsoft.com> wrote in message
    news:AB7CE051-FD11-4181-8D82-63F3148B67F4@microsoft.com...
    > Before we run adprep to prepare infrastructure for Windows 2008, I plan to
    > disable outbound replication on the FSMO master.
    > If things go wrong, and I neeed to revert, can I restore systemstate from
    > backup normally (i.e. without an authoritative AD restore), and then
    > re-enable outbound replication.
    > i.e. I'm assuming here that if replication has been disabled, an
    > authoritative restore is not necessary before it is re-enabled..
    >
    > Thanks.
    >
    >


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