BA730: One or more Hyper-V guests have reported errors that could result in an incomplete backup¶
| Error code | Product | Applies to |
|---|---|---|
| BA730 | BackupAssist ER | BackupAssist ER v1 and later |
Description¶
One of the guest machines that is part of the backup has reported errors and may not have been backed up correctly. This is usually caused by the VSS snapshot not being able to be completed.
Mouse over the error within your backup report to see which guest(s) should be investigated.
Resolution¶
Identifying the guest/s¶
When troubleshooting problems with Hyper-V backups, it is important to first determine which guest/s is causing the error. You can do this by checking the Hyper-V VMSS logs, as shown below. You may also be able to identify the guest from the information in the backup report. If you are unable to identify the guest, try backing up the guests one at a time until the errant guest is found. Once it is identified, try a VSS backup on the guest itself using a trial version of BackupAssist ER. The success or failure of this backup will help to further narrow down what could be causing the error at the host level.
To view the Hyper-V VMMS logs:
- Click the Start button.
- Click Control Panel.
- Click System and Maintenance.
- Click Administrative Tools.
- Double-click Event Viewer.
- In the left hand navigation window, browse to Applications and Services Logs > Microsoft > Windows > Hyper-V-VMMS.
Identifying the problem¶
If there is an issue with the hardware, VSS or the operating system, Windows will usually provide entries about this issue in the Event Viewer. These entries can be used to gather more information and help resolve the error.
To use the Event Viewer
- Open Windows search and type Event viewer
- Select Event Viewer.
- Expand the Windows logs. You will specifically want to look at the Application and System logs.
- Check to see if there are any specific warnings or errors that apply to your issue and the time it may have occurred.
- Review the contents of the error or warning for information that may help resolve the issue.
Check VSS¶
Make sure that the Volume Shadow Copy Service is not disabled, and that no other 3rd party VSS providers are interfering with the backup. (Control Panel > Administrative tools > Services).
| Last updated | Created | Further assistance |
|---|---|---|
| 8th Jan 2018 | 28th Aug 2013 | BackupAssist ER Support page |