restore 2003 AD from symantec backupexec 12

madinina
madinina used Ask the Experts™
on
Dear Expert,

I have a DC (DNS, DHCP...) that crashes following an electric storm. Could you give any step by step to successfully perform the AD restoration on an new hardware to recover the DC as it was  before crashing.
Backup exec will be installed on the new hardware.
The domain controller is belong to a forest where others domain are sitting. The others domain are not on the same physical site than the one that has been failed

thks in advance

There
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Top Expert 2013

Commented:
You could follow the directions here:

http://seer.support.veritas.com/docs/236661.htm

The tricky part is going to be the new hardware, never tried or tested it with backup exec

If you have other DCs in the same domain you could also just do a metadata cleanup on that box that crashed (since you couldn't demote it gracefully) and then bring the new box up as a member server and promote it to become a DC/DNS server.  

Thanks

Mike

Author

Commented:
Mike,

I already read this article but  I am confuse. Do I have to restore the system state from a non-DC or DC?

Thks
Bring the new box up as a member server and promote it to become a DC/DNS server in that case
you do not need to restore the system state from a non-DC or DC.
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Top Expert 2013

Commented:
From a DC but really I'd just go with the metadata cleanup and then promote the new box.

metadata cleanup instructions   http://www.petri.co.il/delete_failed_dcs_from_ad.htm

Did that box have any FSMO roles?

Thanks

Mike

Author

Commented:
I would like to keep the same name of the failed server on the new hardware. So, restoring the system state will be faster to do that cleanup the metadata and promote the new box.
Yes, the failed server have teh FSMO roles.
Top Expert 2013

Commented:
Here is how it was done with system state  with Windows backup  http://support.microsoft.com/kb/263532   you would need the system state from that downed DC, but again the different hardware with backup exec 12 is something I haven't tried.

You could use the same name after the metadata cleanup.

Thanks

Mike
Anyway you need to perform metadata cleanup(Remove record from DNS, ADSIEDIT, FRS to do so follow the article provided by mkline71), then you can use  same name.

new installation with dcpromo is better option instead of restoring the system state, but Its also depend on you.

Author

Commented:
The server was a file server for users. If dcpromo the replacment do you think user will connect succesfully to it without making any change from the user desktop like it was before failing

Author

Commented:
metadata cleanup should be done before the restoration or dcpromo, correct?
Top Expert 2013

Commented:
Yes and you will also need to seize the FSMO roles  

http://www.petri.co.il/seizing_fsmo_roles.htm

Thanks

Mike
1. do you think user will connect succesfully to it without making any change from the user desktop like it was before failing   -Yes.

2. metadata cleanup should be done before the restoration or dcpromo- Yes.

Author

Commented:
I don't understand why I have to seize the FSMO role as the failed DC was the only one DC in the domain. And I replace it by an other with the same name.
Top Expert 2013

Commented:
wait a second this was the only DC in the domain?   That changes things, I thought you had other DCs in this domain.
Ohh... I thought you have another DC, new installation with dcpromo will not work for you.

Or bring up new box with different name then transfer roles to new server then decom the old server.

In that you do not need to run metadata cleanup.
Bring up new box up with different name then transfer roles to new server then decom the old server.

In that case you do not need to perform metadata cleanup.

Author

Commented:
In summary

I want to keep the same server name again.
This is the only one DC in the domain and it hold the FSMO role. So the new hardware will be also a DC and handle the FSMO roles
I want to restore AD from backup exec on the new hardware as it was before the server failed.

Top Expert 2013

Commented:
You are going to have to try the restore, because a new DC would be a new domain.  
Yes, option is the restore system state from backup that will keep same server name and you will get all previous roles which were present on old server.

Author

Commented:
I followed the suggestions and get rid with it

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