System State/Shadow Copy Comp/ causing the Windows Cluster to be corrupted

[Iwan_Tamimi]

Hi All, 

We were experiencing two times the cluster database corrupted causing one node cannot join the cluster anymore on Windows 2008 R2. Both happened when NetBackup running the system stat/shadow copy comp. 

Anyone has this experience before? 

Regards, 

Iwan

ps:

NetBackup Version: 7.6.0.2

Master Server Platform: RHel 6.1

Media server Platform: Windows 2008 

Clustered Client: Windows Enterprise Server 2008 R2 with cluster configured. 

[Marianne · Accepted solution]

I cannot imagine that NBU is capable of doing this!
Our customers and fellow Connect members are backing up thousands of cluster nodes on a daily basis without any issues.

The client itself is responsible for collecting data and sending it to NBU.

Take NBU out of the picture - use Windows backup to run a backup of SCC to local disk. 
Let us know the result.

[Michael_G_Ander]

Have not experienced exactly the problem you describe, but have had some issues with shadow copy components and Windows Clusters.

Often you need a VSS rollup/hotfix for cluster to solve these issues.

[Nicolai]

Backup of Shadow Copy Components/System State is a API call to Windows for Netbackup. Netbackup may trigger the fault, but I don't think Netbackup IS the fault here :)

[Iwan_Tamimi]

Hi All, 

Thanks for the replies, thank you for the enlightements. 

@Marianne I will suggest to the system owner this, currenlty I take out the shadow copy component backup from the OS backup, but the test could take sometimes. 

@Michael and @Nikolai I will focus on shadow copy component for the investigation. 

Regards, 

Iwan 

[Nicolai]

Does the same thing happen if you use e.g. Windows Server Backup ?

Just to conclude or eliminate VSS is the problem

[Iwan_Tamimi]

Hi All, 

I think I agree with all, now we already called a log to our Microsoft support , but they have not back with the solution. As for the how to restore back the cluster they have given us a solution, if you need I will post it here but it is pure microsoft cluster restore solution. 

Regards, 

Iwan 

[Marianne]

As long as we all agree that NBU did not cause this corruption.

[Gerald_W__Gitau]

Is netbackup client added as a cluster resource? It can run well without being a cluster resource - I have previously experienced random issues when the NBU client is clustered.