PDC crash

This topic contains 19 replies, has 6 voices, and was last updated by  petef 9 years, 2 months ago.

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  • yokohama
    Member
    #143601

    A big problem after the crash of my PDC (Windows 2000 Server). I’ve got the BDC (Windows 2000 Server) online and the clients can login ok. A strange thing is that I don’t see DNS snap-in under Administrative Tools folder (perhaps because the PDC is dead :oops:). A lot of questions :shock: :

    1) Need to add the DNS component to my BDC ?
    2) Need to Sezing FSMO roles to my BDC and then run DCPROMO to promote BDC -> PDC ?
    3) which is the right sequence of operations in order to solve this problem ?

    A little help would be appreciated :bowdown:

    Bye
    Alessandro


    Dumber
    Member
    #200310

    Re: PDC crash

    Luckily the time of BDC’s and PDC’s are over… :roll:

    Anyhow can the DC being restored?
    Else, yes you have to install and seizing the roles. Searching this site will give you some how-to’s for seizing the roles.


    yokohama
    Member
    #365255

    Re: PDC crash

    Dear Marcel,

    If I remember well, the DC data are part of System State backup. I’ve got it. Even I got a complete image of the PDC system disk.

    What can I do ?

    Bye
    Alessandro


    joeqwerty
    Moderator
    #302519

    Re: PDC crash

    Well I would recommend not restoring the DC at this point if you’ve made any changes or updates on the “BDC”.

    Try installing the Administrative Tools on the “BDC” to see if that fixes the issue with the DNS management console. If not, I won’t do any harm anyway. After that follow this article to sieze the FSMO roles:

    http://www.petri.com/seizing_fsmo_roles.htm


    yokohama
    Member
    #365256

    Re: PDC crash

    Dear joeqwerty,

    On BDC i’ve already got Administrative Tools but not the DNS snap-in. Need to add the DNS component to solve this problem ?

    Bye


    Virtual
    Member
    #333494

    Re: PDC crash

    Have you looked at Control Panel, Administrative Tools for the DNS tool.


    yokohama
    Member
    #365257

    Re: PDC crash

    DNS not found !


    Virtual
    Member
    #333498

    Re: PDC crash

    Make sure your remaining DC has DNS installed. If not, install it and then ake sure the DC is pointing at itself as DNS.

    You can then seize roles as recommended by Joe and Dumber below. Joe provides a link. You may have to do it via the NTDSUTIL command if other links are missing in admin tools or you have errors whilst using the GUI to seize.

    You then need to clean metadata of the old DC, reinstall it (if hardware allows you to) and then you can troubleshoot, if it was a hardware malfunction that caused the faults in the first place.


    anil.colaco
    Member
    #312920

    Re: PDC crash

    Please read my post at http://server-helpdesk.blogspot.com/

    a very lengthy post… sorry

    I had some what a similar situation and as joe shows a link that, have used it myself. excellent resource.

    thanks n hope it helps


    yokohama
    Member
    #365258

    Re: PDC crash

    So guys this morning I did seizing roles. Reboot DC and everything seems ok. But after I’ve got some troubles with permissions to ODBC DSN and IIS stops working a lot of times. Restore the AD and now I’m with my old config. Damn…..

    Two questions :

    1) after seizing roles need to run dcpromo ?
    2) How can i clean metadata about my old DC ?

    Please remember that my old PDC is not online, because mobo failure !!

    Bye


    Virtual
    Member
    #333501

    Re: PDC crash

    yokohama;175782 wrote:
    So guys this morning I did seizing roles. Reboot DC and everything seems ok. But after I’ve got some troubles with permissions to ODBC DSN and IIS stops working a lot of times. Restore the AD and now I’m with my old config. Damn…..

    Two questions :

    1) after seizing roles need to run dcpromo ?
    2) How can i clean metadata about my old DC ?

    Please remember that my old PDC is not online, because mobo failure !!

    Bye

    1) You don’t need to as it is already a DC.

    2) http://technet.microsoft.com/en-us/library/cc736378(WS.10).aspx

    Also, make sure you never bring the failed DC online should you ever repair the Motherboard.


    yokohama
    Member
    #365259

    Re: PDC crash

    thanks 4 the quick reply.

    Maybe it was the fact that i didn’t clean the metadata the cause of my troubles with ODBC and IIS crash ?


    Virtual
    Member
    #333502

    Re: PDC crash

    Not entirely sure. Has that problem now been resolved?

    Also, make sure you remove any entries left in DNS for the failed DC and any in AD Sites and Services. If you use DHCP or have manual DNS entries for the old DC, remove those as well.


    yokohama
    Member
    #365260

    Re: PDC crash

    No after all problem not solved. On the intranet (ASP pages) when I use a DSN to connect to a db (Access or SQL Pervasive) IIS stops working. If I try to view DSN settings from the control panel, the system told me that I don’t have sufficient permission to do that. Restoring AD (backup made before seizing roles) and everything works well !

    In attachment my DC dcdiag.


    yokohama
    Member
    #365261

    Re: PDC crash

    In the meanwhile we ordered a replacement server. The next two weeks the company is closed for vacations, so the new server was delivered to my home. Since my BDC is yet a backup domain controller, is a stupid thing if I’ll restore a system state of the original PDC on the new server ? :confused:


    Dumber
    Member
    #200322

    Re: PDC crash

    Again, it is NOT a BDC… It’s just a DC just like every other Domain Controller.


    yokohama
    Member
    #365262

    Re: PDC crash

    Ok but in Server Manager it is labeled as “Backup”


    yokohama
    Member
    #365263

    Re: PDC crash

    Little update :

    This morning I return to the office for a couple of hours, so I can make again the System State restore + seizing roles + metadata and dns cleanup. It seems that almost everything is ok, Intranet pages + db works well. Only one thing I noticed : the access of some shares is granted only if I use my admin account.


    petef
    Member
    #365486

    Re: PDC crash

    In one of the posts there was a DCdiag.txt file.
    In it I noticed that there was no Global Catalogue found.
    Would making the current server a Global Catologue have fixed the issues that were occurring.

    I think a lot of care needs to be taken when making these changes. Once they are made bringing the original server back to life may cause some issues. If the process is not done right 2 servers will thinks they hold the FSMO rolls. The original server will have outdated information from the restored system state backup.

    Since this has been done already I would be looking for problems with file replication and directory services in the event logs. If they don’t exist and the same dcdiag comes back without any issues then things are good.


    yokohama
    Member
    #365264

    Re: PDC crash

    Update :

    We have replaced the fault server with an IBM x236. After one day of os setup and system updates, I put it in the AD as an additional DC. Now I’ve got some problems with File System Replication. DCDiag tools give me frssysvol error “Error No Record of File System Replication, SYSVOL started. etc etc….”. on both Dc’s as event ID 13508 in the event log. I found that the solution would be MS KB315457 . I follow the preliminary steps (control NETLOGON and SYSVOL share, SYSVOL directory tree and so on), but the step 2 is not enough clear to me :

    2. Move all files and folders that should reside in the SYSVOL tree to a temporary folder on the reference domain controller. The temporary folder should be located on the same partition the SYSVOL tree is located.

    How can I do that ? Simply with xcopy cmd ? But this gives me an “Access Violation” even if i did it with the ntfrs service stopped.

    And again is this the right procedure for our problem ?

    Thanks in adv for the help

    Bye
    Alex

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