Scheduled Incremental or Full Backup Job Fails for Hyper-V VM

Troubleshooting › Virtual Machine Backup and Restore Related › Scheduled Incremental or Full Backup Job Fails for Hyper-V VM

Symptom

Sometimes the scheduled incremental or full backup job fails for Hyper-V virtual machines and the following errors are displayed in the event viewer on Hyper-V host:

DM operation add for the virtual machine <vm name> failed with error: Ran out of memory (0x8007000E) (Virtual machine ID <vm ID>)
Could not create backup checkpoint for virtual machine <vm name>: This operation returned because the timeout period expired. (0x800705B4). (Virtual machine ID <vm ID>)
Could not create backup checkpoint for virtual machine <vm name>: Element not found. (0x80070490). (Virtual machine ID <vm ID>)
VSS writers inside virtual machine <vm name> failed to perform BackupComplete to its shadow copy (VSS snapshot) set: A function call was made when the object was in an incorrect state for that function (0x80042301). (Virtual machine ID)
The Hyper-V VSS writer has encountered an error when processing this virtual machine. (For more information about Hyper-V VSS writer errors, refer to the product documentation).

Solution 1

The resolution is to increase the RAM size on the Hyper-V server and then resubmit the backup job.

Solution 2

If the VSS writer inside the virtual machine does not work properly, then the backup job fails. To resolve the issue, check the event log of both Hyper-V host and the virtual machine. Check the VSS warnings and errors, and take appropriate actions.