Reinstate Crashed Windows 2003 PDC

Archived from groups: microsoft.public.win2000.active_directory (More info?)

"" wrote:
> Hi All,
>
> A couple of weeks ago our PDC crashed and the BDC (Also
> windows 2003)
> took over. We activated the DHCP server on de BDC and we where
> on-line
> since then.
>
> The PDC now is fixed and has a new system board. Since the PDC
> crash
> there where a number of deleted/added users in the A/D.
>
> What would be best practice to get the original PDC back
> on-line with
> the current A/D state?
>
> Thanks for all the answers in advanced.
>
> greets,
> Zedd

Well you have several options...

* If you PDC was running OK before the crash and when it crashed you
only replaced the system board and the PDC has not been offline for
more than the tombstone lifetime (default = 60 days)... just turn it
on!

* if it the AD installation on the PDC is corrupt and is bad but the
server is still bootable, boot it into Directory services restore mode
and do a non-authoritative restore of the system disk and the system
state and after that reboot the server ONLY if you have a valid backup
for the PDC that is not older than the tombstone lifetime(default = 60
days)!

* If you have no backup, the system wil not boot or whatever. do a
metadata cleanup of the PDC on the BDC
(http://support.microsoft.com/?kbid=216498 or/and
http://www.petri.co.il/fix_unsuccessful_demotion.htm) and reinstall
the PDC from scratch

As I can see right now and if you do not have anything that is worth
restoring on the PDC do option 3 (metadata cleanup and rebuilding)

by the way there are no more PDCs and BDCs in AD. All DCs are equal
besides the fact that some may have additional roles like the GC or
the FSMOs.

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Archived from groups: microsoft.public.win2000.active_directory (More info?)

"" wrote:
> Thanks for the provided options!
> I'm not shure how long the machine has been off-line, but an
> employee
> told me it shurely was less then 60 days.
>
> So I turned on the machine and placed it back into the
> network.
> Everyting seems to work fine, but is there an way to check out
> is the
> replication is up and running again?
>
>
> >Well you have several options...
> >
> >* If you PDC was running OK before the crash and when it
> crashed you
> >only replaced the system board and the PDC has not been
> offline for
> >more than the tombstone lifetime (default = 60 days)... just
> turn it
> >on!
> >
> >* if it the AD installation on the PDC is corrupt and is bad
> but the
> >server is still bootable, boot it into Directory services
> restore mode
> >and do a non-authoritative restore of the system disk and the
> system
> >state and after that reboot the server ONLY if you have a
> valid backup
> >for the PDC that is not older than the tombstone
> lifetime(default = 60
> >days)!
> >
> >* If you have no backup, the system wil not boot or whatever.
> do a
> >metadata cleanup of the PDC on the BDC
> >(http://support.microsoft.com/?kbid=216498 or/and
> >http://www.petri.co.il/fix_unsuccessful_demotion.htm) and reinstall
> >the PDC from scratch
> >
> >As I can see right now and if you do not have anything that
> is worth
> >restoring on the PDC do option 3 (metadata cleanup and
> rebuilding)
> >
> >by the way there are no more PDCs and BDCs in AD. All DCs are
> equal
> >besides the fact that some may have additional roles like the
> GC or
> >the FSMOs.

Check the event logs for errors and you could use REPLMON and/or
REPADMIN to check replication

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