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  Asked: Apr 25 2007   7:45 AM GMT
  Asked by: ITBird

Lost Global Catalogue


Microsoft Windows, OS, Servers, SQL Server, Security, Desktops, Management, Networking services, DHCP, DNS, Active Directory, Lotus Domino, General Directories, Tech support

My Windows 2003 PDC recently died but prior to this I had transfered the operations master roles including schema master to my BDC. I was convinced my BDC was a Global Catalogue server but didn't get a chance to check before my PDC died. This happened just before I went away for 2 weeks and I only discovered this when I came back. We only keep backups for 2 weeks so by this time the PDC's system state backup has gone.

Does anyone know of any way I can somehow recreate the global catalogue without having to start from scratch? I would really appreciate some help! Thanks in advance.

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Last Answered: Apr 25 2007  8:32 AM GMT  by carrollthomas




you will have to do an authorative restore to AD. Hopefully your 2 weeks worth of tapes either have not been overwritten or you can have the data extracted from the tape via a data recovery team. DO you have any other GC's in your environment plus how did users work for the 2 weeks it went corrupt, is this a test environment etc...
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ITBird  |   Apr 25 2007  8:33AM GMT

Hi again all - my BDC has now been accepted as a Global catalogue server and all replication seems to be working OK. So please ignore my previous email.
Thanks.

 

astronomer  |   Apr 25 2007  1:13PM GMT

You may already know this but make sure if you have more than one domain you keep infrastructure master and global catalog functions on different servers.
rt

 

BIGFella  |   Apr 26 2007  4:50AM GMT

Worth a note that in any domain, especially those hosting Exchange server(s) ALL DC’s should be setup as global catalogues… if you only have 1 GC and it dies, to put it politely your fcuk’d, there should ALWAYS be more than 1 DC in an AD domain at minimum 2 DC’s not just for resiliance but also performance Exchange rely’s heavily on GC’s to perform.
If you cannot afford a 2nd server, get a PC and set it up as a DC as a temporary measure until more reliable hardware can be purchased (a proper server).

 

Buddyfarr  |   Feb 21 2008  5:38PM GMT

ITBird,

I agree with BigFella, if you have not already, then as soon as you can get your other DC back up then make it a GC too, that way you will not run into this problem again.