Backup jobs for Nutanix Files fail due to snapshot import and export operations failures

Backup jobs that are scheduled for file shares on Nutanix Files may fail due to a conflict error in the snapshot import and export operations.

The job log contains the following errors:

Snapshot import failed (4213)
Backup from Snapshot job failed with error 4213
Snapshot import failed
(errMsg": "Failed to export Error: Edit conflict: please retry change)

WARNING: Snapshot export failed.
Failed to export. Error: Edit conflict: please retry change.
Error vfms Snapshot export API failed for snapshot ID[snapID].

Recommended action:

This issue occurs if the same Nutanix Files file system is configured with more than one CloudPoint server instances simultaneously.

NetBackup is registered as a partner server on the Nutanix Files platform. A one to one mapping exists between the NetBackup CloudPoint server and the Nutanix Files. If the same Nutanix Files file system is configured with multiple CloudPoint instances, it creates a resource conflict. Each CloudPoint server attempts to update the configuration with the backup job information. This concurrent configuration update on the single partner server registration fails and causes a conflict error.

NetBackup does not support such a mixed configuration. Ensure that you configure Nutanix Files with a single instance of the CloudPoint server in the NetBackup domain.