Schema upgrade recovery-rollback

  • Thread starter Thread starter Martin
  • Start date Start date
M

Martin

Im in the process of upgrading the schema for a forest
with two domains. Can I make a quick recover if something
goes wrong with a Ghost image or do I need to recover by
creating a backup and then by using active directory
restore mode to restore that backup?
It sounds to me like the quickest way would be a image
creation but Im not sure.
Thanks for any comments and pointers.
Martin
 
The bad news is that there is no supported method of restoring the schema.
You would have to do a system state restore on every DC in the forest to get
back to an older version. This is why you need to test it in a test forest
beforehand.
An image process might work as well, but again you would need an image of
every DC in the forest.
 
Martin said:
Im in the process of upgrading the schema for a forest
with two domains. Can I make a quick recover if something
goes wrong with a Ghost image or do I need to recover by
creating a backup and then by using active directory
restore mode to restore that backup?
It sounds to me like the quickest way would be a image
creation but Im not sure.
Click to expand...

You could take a ghost image of the schema master, then make sure it's
unplugged from the rest of the network while you perform the upgrade. That
will prevent any schema changes from replicating through to the rest of the
network. Then check your event logs to make sure the schema update went OK
(remember that you will have some errors in there due to replication not
functioning) If everything looks OK, plug it back into the network and let
the changes replicate.

MS recommend a similar process for running adprep when adding a W2k3 DC to a
W2k domain.
http://support.microsoft.com/?id=278875
 
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