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Thread: Corrupt Active Directory 2003

  1. #1
    Join Date
    Jan 2004
    Posts
    42

    Corrupt Active Directory 2003

    I am having two servers here. Both are running on Windows 2003 R2 server. There are around 5 different client workstations configured on the network. I had configured AD and DNs which looks to be working fine. Somehow there was a issue with one server. After power failure a drive stopped working. Due to which I found AD has corrupted. I want some help here. How can I recover it. Is there a better option available.

  2. #2
    Join Date
    Sep 2004
    Posts
    77
    Did you kept a backup of the same somewhere. Try to recover the same from it. I am giving you a link that has ample of information on backup and recovery.

    Active Directory Backup and Restore

  3. #3
    Join Date
    Oct 2005
    Posts
    51
    You have to first verify file. That backup file or the AD database. Whether it is corrupted or not. There is maximum chance of recovering the same. Later on once it is confirmed that the database is fine, you can simply switch to directory restore mode. Here you can select from authoritative and a non-authoritative mode. Once you had done with the recovery you have to again check all the functions of DC. Just ensure that things are working properly or not.

  4. #4
    Join Date
    Mar 2009
    Posts
    1

    Re: Corrupt Active Directory 2003

    Hi All

    I have just gained a new customer who has a SBS 2003 R2 server that he believed was being back up. Well it was all apart from system state!!!!

    The server crashed last night, not sure why yet. When I boot the server I am unable to log onto the domain, just the computer. I have managed to log on in the DSRM, but like as in this thread the NTDS is corrupt.

    WIll this (maybe) work on SBS 2003 R2? also you stated that

    if repair is successful, delete all the files inside NTDS folder (.log and
    ..chk)
    Does this mean ALL files in the NTDS folder or just the .log and .chk files.

    Many thanks for reading

    Regards

    Tony


    Quote Originally Posted by Jorge Silva View Post
    At the moment I don't have a machine to test those options, try the
    following:
    Do a backup of the original NTDS.dit database, and work on the other one:

    To perform the integrity check, start a command prompt, type the following
    command (including the quotation marks), and then press ENTER:
    esentutl /g "path\ntds.dit" /!10240 /8 /o

    To repair the database, type the following command (including the quotation
    marks), and then press ENTER:
    esentutl /p "path\ntds.dit" /!10240 /8 /o

    if repair is successful, delete all the files inside NTDS folder (.log and
    ..chk)

    Reboot the server.

    --
    I hope that the information above helps you.
    Have a Nice day.

    Jorge Silva
    MCSE, MVP Directory Services

  5. #5
    Join Date
    Sep 2004
    Posts
    74
    Try Recovery Manager. You must always keep all the settings of this tool enable. In case of any problem this tool help you to restore all your functions. It is a ready to use tool that offer your AD recovery against power and hardware failure. It also works really well. There is no problem with the recover and backup.

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