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Domain System Volume is Missing

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Last Modified: 2020-02-18
The Domain System Volume was deleted from DFSM and there is no backup for it. Does anyone now how to rebuild it?
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Peter HutchisonSenior Network Systems Specialist
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Commented:
If Sysvol is missing then you will have lost all your policies and any login scripts.

You can re-create the Default Domain Policy and Default Domain Controller Policy using the Dcgpofix.exe command. The rest will have to be manually re-created.

Run NET VIEW \\DC-Server-Name to check if NETLOGON and SYSVOL appear.
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Commented:
Do you not have a backup of any Domain Controllers ?

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Commented:
Hi Peter

SYSVOL folder on both servers are still there and so are the policies, but there is a problem with the GPOs syncing. I have DFSM installed on both server and under replication the domain system volume is missing. DFSR05.JPG

Author

Commented:
there are backup of the domain controller, but the problem is that the backup don't go back far enough to fix the problem
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Commented:
First of all take a copy the folder, and a full backup of at least one DC, if they are VMs take an online checkpoint.

I would have a look at the like "D4" for FRS" section of this.

https://support.microsoft.com/en-gb/help/2218556/how-to-force-an-authoritative-and-non-authoritative-synchronization-fo

Author

Commented:
CN=SYSVOL Subscription,CN=Domain System Volume,CN=DFSR-LocalSettings,CN=<the server name>,OU=Domain Controllers,DC=<domain> is missing. Does this value need to be added back in?

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when i ran dcdiag /test:VerifyEnterpriseReferences it said this was missing. but i don't know the steps need to get them back.
Senior Network Systems Specialist
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Commented:
There is a good step by step article on Microsoft's support site to repair DFSR replication using ADSIEDIT and DFSRDIAG tools:

https://support.microsoft.com/en-gb/help/2218556/how-to-force-an-authoritative-and-non-authoritative-synchronization-fo