How to Fix Hyper-V Backup Errors
When you encounter an issue with just one VM failing, it’s almost certainly an issue inside the VM, not the host.
That’s because any VSS-aware service inside a VM can break the Hyper-V backup cycle by vetoing. When all VMs fail to back up, it’s likely something on the host causing the failure.
Please check the Event Viewer logs inside the VM at the time when the first backup error occurred, for example 1/11/2017 5:05:00 PM.
The time window of interest would be 1/11/2017 5:05:00 PM to 5:10PM, sometimes longer. Now look for VSS related errors in the Event Viewer logs. It could be any VSS aware service vetoing live backup, such as Exchange, AD, etc.
To rule out the possibility of a host issue, you can also run VssDiag and enter the exact time from above (1/11/2017 5:05:00 PM) in US format
//backupchain.com/tools/VssDiag.zip
VssDiag will collect Event Viewer errors on the host as shown here: //backupchain.com/en/troubleshooting-volume-shadow-copy-errors-first-steps/
Of particular interest when you are dealing with Hyper-V are the logs in:
Applications and Services Logs -> Microsoft -> Windows -> Hyper-V XXXXXXX
as shown in the above article link.
Please contact our tech support for more information. We also offer remote assistance to get your backups running again asap.
Backup Software Overview
The Best Backup Software in 2024 Download BackupChain®BackupChain is the all-in-one server backup software for:
Server Backup
Disk Image Backup
Drive Cloning and Disk Copy
VirtualBox Backup
VMware Backup
Image Backup
FTP Backup
Cloud Backup
File Server Backup
Virtual Machine Backup
Server Backup Solution
Hyper-V Backup
Popular
- Best Practices for Server Backups
- NAS Backup: Buffalo, Drobo, Synology
- How to use BackupChain for Cloud and Remote
- DriveMaker: Map FTP, SFTP, S3 Sites to a Drive Letter (Freeware)
Resources
- BackupChain
- VM Backup
- V4 Articles
- Knowledge Base
- FAQ
- Archive 2024
- Archive 2022
- Archive 2021
- Archive 2020
- Archive 2019
- Archive 2017
- Archive 2016
- Archive 2015
- Archive 2014
- Archive 2013
- BackupChain (German)
- German Help Pages
- BackupChain (Greek)
- BackupChain (Spanish)
- BackupChain (French)
- BackupChain (Dutch)
- BackupChain (Italian)
- BackupChain is an all-in-one, reliable backup solution for Windows and Hyper-V that is more affordable than Veeam, Acronis, and Altaro.
Other Backup How-To Guides
- What You Need to Know About Servers
- Backup Software and Long File Names: What You Need To Know
- VMware Cloud backup
- How to Convert OpenSSH Keys to RSA for DriveMaker SFTP Access
- Backup Software with Portable and Perpetual Licensing
- A Comprehensive Hyper-V Tutorial: Getting Started with Virtualization
- Hyper-V Backup for Windows 11 and Windows 10
- 18 Hyper-V Requirements and Recommended Hardware
- Boot Hyper-V Server 2019, 2016 from USB Stick or Drive
- How to Rollout Windows Updates Without Internet Connection
- How to Configure a Hyper-V Granular Backup
- Backup Software for Windows Server 2022, VMware, & Hyper-V
- How to Fix VolSnap 25 Error The shadow copies of volume C: were deleted
- 6 Common Cloud Backup Storage Pitfalls You Should Know
- How to Delete All VSS Shadows and Orphaned Shadows
- How to Fix Disk Signature Error PartMgr 58
- P2V Converter & Backup Software for Hyper-V VMware VirtualBox
- Backup Verification and Validation: Use Self Validating Backups
- Hyper-V Load Balancing: Everything You Need to Know in 2 Minutes
- How to Plan Hyper-V Deployment for Optimal Virtualization