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3 Posts
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948
July 27th, 2021 01:00
Veeam Backups failing - Dell Compellent VSS Hardware Providers
Hi
so here is my scenario:
2 Hyper-V hosts in a cluster – W-SRV-HYPERV3 & W-SRV-HYPERV4. Both running Windows Server 2012 R2.
Both attached via 100GB iSCSI to the SC5020.
Mixture of VMs ranging from 2008 to 2019.
Veeam installed on W-SRV-HYPERV4.
The following applications installed on both Hyper-V hosts
• Dell Storage Replay Manager
• Dell Storage Replay Manager Management Tools
• Dell Storage Replay Manager Verification Services
If a VM is running on W-SRV-HYPERV3, Veeam is able to backup the VM using the Compellent Replay Manager VSS Provider 100% of the time.
If a VM is running on W-SRV-HYPERV4, Veeam will always give the following message:
Failed to create snapshot (Compellent Replay Manager VSS Provider) (mode: Veeam application-aware processing) Details: Unknown status of async operation.
The shadow copy provider had an error. Check the System and Application event logs for more information.
--tr:Failed to create VSS snapshot.
--tr:Failed to perform pre-backup tasks.
If I move a VM that failed on W-SRV-HYPERV4 to W-SRV-HYPERV3, the backup then works fine.
I have a ticket open with Veeam and they suggested contacting Dell because of the VSS provider that is being used. Its also worth mentioning, the reason we are using the Compellent Replay VSS provider is because the volume which hosts the VMs is larger than 64TB which I believe is the limit for Windows VSS provider.
Both DELL and VEEAM are sending me to each other and we are not getting any closer to a resolution.
following on from this, I was advised to upgrade both hosts to Server 2019, this has now been completed yet the same issue still remains.
Does anyone have any ideas?
hussainU
3 Posts
0
July 27th, 2021 04:00
Update: the names were changed on the Hyperv Hosts
W-HV01
W-HV02 - VEEAM Installed
some weird combinations going on now
it seems any new Virtual Machine running Windows Server 2019 on Configuration Version 9.0 - backs up fine.
If the server is a prev OS version with Config 5.0 then it fails with that error
I found this out because, i was able to back new servers initially that were not in the CLUSTER yet, and i was wondering why non cluster machines are working but not VMs in the Cluster.
The problem i have now is, i can upgrade the Config on Servers running 2019, but what do i do about servers running 2012 R2 on 5.0!!
hussainU
3 Posts
0
July 27th, 2021 07:00
Hi
Yes i also have a support ticket open and it is under warranty
The version is: 07.04.21.004.02
it seems any new Virtual Machine running Windows Server 2019 on Configuration Version 9.0 - backs up fine.
If the server is a prev OS version with Config 5.0 then it fails with that error
I found this out because, i was able to back new servers initially that were not in the CLUSTER yet, and i was wondering why non cluster machines are working but not VMs in the Cluster.
The problem i have now is, i can upgrade the Config on Servers running 2019, but what do i do about servers running 2012 R2 on 5.0!!
DiegoLopez
4 Operator
•
2.7K Posts
0
July 27th, 2021 07:00
Hello @hussainU,
Welcome to the Dell Community! Sorry to read tha you are experiencing issues with your Compellent.
You can try to discard hardware errors on the Compellent. Did you already get in touch with Compellent phone support? Is still in warranty? Were you able to perform any hardware troubleshooting steps? Or were they able to check the logs? Could you please let me know the Compellent firmware version?
Regards.
supadan
3 Posts
0
July 27th, 2021 08:00
If the VM is 2012R2 then you can upgrade the configuration version as per the list below:
Upgrade virtual machine version in Hyper-V on Windows 10 or Windows Server | Microsoft Docs
Failing that, I have issues previous with the Compellant VSS writers and swapping it back over to Microsoft Writers ensured there were no issues!
In Veeam go to Backup Infrastructure > Managed Servers > Hyper-V >Select type here (Standalone or SCVMM)
In the page that opens up select the host > manage volumes > Edit Each Volume from Compellant VSS to Microsoft Shadow Copies.
Supported VM configuration versions for semi-annual channel hosts
The following table lists the VM configuration versions for hosts running a currently supported semi-annual channel version of Windows. To get more information on semi-annual channel versions of Windows, visit the following pages for Windows Server and Windows 10