Issue
Backups for a protected endpoint fail with the error message, "Error 310: Unable to Backup Volume."
Environment
NinjaOne Backup
Cause
The plan is attempting to back up a volume that does not have a valid disk partition type (for example, RAW).
Resolution
Remove the volume from the backup plan or change its filesystem to a valid partition type.
Additional Resources
For additional troubleshooting guidance, refer to NinjaOne Backup: Troubleshooting Error Codes.