Backup failed when check application aware.

[sonkub]

Error: Guest processing skipped (check guest OS VSS state and hypervisor integration components version)

resource:
- HyperV failed over cluster (2 hosts)
- Host OS : Windows Server 2012
- Veeam OS : Windows Server 2012 R2
- Veeam : 9.5
- VM Guest (backup failed) : integration service version 6.3
- VM Guest (backup success) : integration service version 6.2

There are 5 VMs on same cluster. VM1 to VM4 were backup success. But VM5 was backup failed.
I checked integration service version it showed version 6.3. I don't understand why this VM version is 6.3, because Windows 2012 is highest version is 6.2.
Is it cause of this problem?

VM5 can backup with guest file and without application aware.
All VM were install update integration service.

[sonkub]

VM Guest OS is Windows Server 2012 R2

[sonkub]

update

I use this command:
Diskshadow /L C:\writers.txt
list writers

It show "Caption: Backup Using Saved State". but VM is running.

[BartP]

When guest processing is skipped, this often is a windows/VM problem and not directly related to Veeam.
To start troubleshooting, your best best is kb1855 and don't forget to check logs in the VM itself.

[sonkub]

Thank you I will troubleshoot hyperv

[Mike Resseler]

Hi,

When you see that a backup is running in Saved State, I kind of have a "standard" checklist to see if the VM matches the requirements for online backup. You can check these:


1. Is the child VM must in the running state. (I am sure it is yes but this is part of my standard research )
2. Is the Snapshot File Location for the VM set to be the same volume in the host operating system as the VHD files for the VM?
3. Are all volumes in the child VM basic disks and are there no dynamic disks?
4. Are all disks in the child VM use a file system that supports snapshots (for example, NTFS, ReFS)?
5. The latest Integration Services must be installed and backup (volume snapshot) within those services must be running
6. The guest OS inside the VM must support VSS
7. Following services must be running in the VM: COM+ Event System/ Distributed Transaction Coordinator/ Remote Procedure Call (RPC)/ System Event Notification/ Volume Shadow Copy. (Some are set to start automatically, others automatically (Delayed start). The COM+ System Application/ Microsoft Software Shadow Copy Provider services must at least be set to Manual
8. Check inside the guest for event ID 13 with source vmicvss. If that exists, something is wrong