[THIN] Re: OT: Sysvol share recreating
- From: "Erik Blom" <erik.blom@xxxxxxxxxx>
- To: thin@xxxxxxxxxxxxx
- Date: Thu 01 May 2003 14:08:22 +0200
Rob:
I found this on technet: (search on "Active Directory Disaster Recovery")
********
Non-Authoritative Restore
Active Directory
Non-authoritative restore is the default method for the restoration of Active
Directory, and it will be used for the majority of restore operations. Using
this method, settings and entries that existed in the domain, schema,
configuration, and optionally the global catalog naming contexts maintain the
version number they had at the time of backup.
After a non-authoritative restore, the DC is updated using normal replication
techniques. That is if the version number of an attribute is less than the
version number of the same attribute stored in its replication partners
database (indicating the object has changed since it was last backed up). The
object on the restored server will be updated with the changes that were made
to that object since the time of the last backup. This ensures an up-to-date
version of the database.
SYSVOL
By restoring the SYSVOL non-authoritatively, the local copy that is held on the
restored DC will be compared with that of its replication partners (using MD5
Checksums). Once the DC reboots, it will contact its replication partner(s),
compare SYSVOL information, and replicate the necessary changes, bringing it up
to date with the other DCs within the domain.
This method should be used when there is at least one other functioning DC in
the domain. This is the default SYSVOL restoration method and will occur
automatically if a non-authoritative restore of the Active Directory is carried
out.
If there is no other functioning DC in the domain, a PRIMARY restore of the
SYSVOL should be done. A primary restore builds a new ntfrs (Windows NT File
Replication Service) database by loading the data present under SYSVOL on the
local DC. This method is the same as non-authoritative except that the SYSVOL
should be marked PRIMARY.
********
------------------------
thin@xxxxxxxxxxxxx wrote:
------------------------
>Hi,
>
>Short off topic question....
>
>Debugging a customer issue with DC replications.....I noticed that on
>one DC the SYSVOL and NETLOGON shares where missing.
>Checking closer, the sysvol folder isn't shared, the folder underneath
>are gone.
>
>Is there any way beside DCpromo twice to recover it between two cups of
>coffee?'
>The've got two other DC's with valid info
>
>thanks for any help
>
>grx
>Rob
>
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