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Windows Server 2008

Windows Server 2008

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Avatar of ukitsme
ukitsme

DFS error messages DC- 2008 R2 and 2012 R2
hi Experts,

Can you please help me fix this issue?
We are getting DFS replication error messages on servers

Event ID 2012: The DFS Replication service failed to communicate with partner <Server Name> for replication group Domain System Volume. The partner did not recognize the connection or the replication group configuration.
 
Partner DNS Address: <server Name>.<domain Name>
 
Optional data if available:
Partner WINS Address: <Wins Name>
Partner IP Address: 172.16.1.21
 
 
The service will retry the connection periodically.
 
Additional Information:
Error: 9026 (The connection is invalid)
Connection ID: 5761CCF0-7B85-4A8C-93F4-55EE19A8E4A0
Replication Group ID: 26CC0B78-4E13-46F8-87B9-F514DBB2089A

Event ID 5014: The DFS Replication service is stopping communication with partner <Server Name> for replication group Domain System Volume due to an error. The service will retry the connection periodically.
 Additional Information:
Error: 9036 (Paused for backup or restore)
Connection ID: 5761CCF0-7B85-4A8C-93F4-55EE19A8E4A0
Replication Group ID: 26CC0B78-4E13-46F8-87B9-F514DBB2089A

I am getting event ID 5004 (replication is successful) straight away after getting error message

I re created replication in AD Sites and services.

Please note that the error message is just on Secondary DC.

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Avatar of Cliff GaliherCliff Galiher🇺🇸

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Avatar of ukitsmeukitsme

ASKER

hi Cliff,

Thanks for a quick response. We use a product named Shadow protect. It uses VSS. I checked other clients who have similar configuration and they don't seem to have the issue.
Avatar of Cliff GaliherCliff Galiher🇺🇸

StorageCraft has KBs on how to properly configure backups for AD. While it does use VSS, there is no preconfigured exclusion for the AD database files. VSS relies on the system state writer. So backing up the files via the open file writer causes a conflict.
Avatar of ukitsmeukitsme

ASKER

hi Cliff Galiher,

I uninstalled backup software on the DC, still have the same problem.
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Avatar of SteveSteve🇬🇧

Hi,

Are the server FQDNs & IPs correct in the error (2012) you're getting?

Do these connect over VPN and how often is AD set to replicate between these servers please?

have you made any changes to replication at either end recently?
Avatar of ukitsmeukitsme

ASKER

hi Steve,

Yes FQDN and IP's are correct. Servers are sitting in the same LAN and in the same building.
When we started getting DFS error messages we deleted and recreated replication.
Avatar of SteveSteve🇬🇧

Hmm. that's probably the issue. If AD wasn't replicating properly the changes you made at one end will have resulted in conflicts.

Now AD has been fixed both ends have differing information.
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Avatar of ukitsmeukitsme

ASKER

sfd
Windows Server 2008

Windows Server 2008

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Questions

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Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.