Error Message

V-79-57344-38324 - Incremental\\Differential backup methods are not supported for this VM. The backup job failed, since the option 'to fall back to a full backup' was not selected.

V-79-40960-38487 - The faster processing method for incremental backups was selected for Hyper-V virtual machine ''. However, that method could not be performed because either Backup Exec did not perform the previous backup or because that virtual machine is backed up with more than one backup job. Run the corresponding full backup job or set the 'Use the full backup method for virtual machines that do not support incremental or differential backups' option on the Virtual Machines settings for this job.

Hyper-V VMMS Logs: Event ID: 10172  Description:
VSS writers inside virtual machine '' 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).

Under Investigation

Workaround:

Enable the option

 "Use the full backup method for virtual machines that do not support incremental or differential backups"

This issue is currently under investigation by Veritas Technologies LLC. Pending the outcome of the investigation, this issue may be resolved by way of a patch or hotfix in current or future revisions of the software. However, this particular issue is not currently scheduled for any release.  If you feel this issue has a direct business impact for you and your continued use of the product, please contact your Veritas Sales representative or the Veritas Sales group to discuss these concerns.
 
Note: Customers experiencing this issue are encouraged to contact Veritas Technical Support as data is still being collected to assist in resolving this issue.