PowerProtect Data Manager: Backup Fails with Error Code ABV0016

VM backups fail after running for sometime. The UI shows the error code ABV0016 and the message:

VM direct engine local host is unable to backup the virtual machine because the API issue

The vmdm.log has the following error messages:

YYYY-MM-DDThh:mm:ssZ DEBUG: [a85c3e1a9c5ee77b;ac8bc10a5b7b4009] Sending state of 'Running' (last: state=Running, progress=27).
YYYY-MM-DDThh:mm:ssZ ERROR: [a85c3e1a9c5ee77b;ac8bc10a5b7b4009] SDM Data Mover: SDM Full Sync: The vCenter task failed: dp.vpx.fault.DiskClosing.summary
YYYY-MM-DDThh:mm:ssZ ERROR: [a85c3e1a9c5ee77b;ac8bc10a5b7b4009] SDM Data Mover: SDM Full Sync: The vCenter task for 'SDM Snapshot Sync fullSync' completed with state 'error'.
YYY-MM-DDThh:mm:ssZ INFO: [a85c3e1a9c5ee77b;ac8bc10a5b7b4009] Connect vCenter: Set custom attribute 'Dell VM Direct Engine Cleanup Descriptor' value for object vm-200 to '{"DataMover":"SDM","SessionType":"Backup","SessionUuid":"0c1dafe9-8d4f-4701-93fd-65c6024b8503","SessionStartTime":"YYYY-MM-DDT14:18:58Z","VmMORef":"vm-243","VmName":"infosys","VProxyMORef":"","SnapshotMORef":"","VmdkBaseFileNames":null,"DpdVendorId":"","LwdDiskIds":null,"DpdTaskMORef":"","LwdSnapshotUuid":""}'.
YYYY-MM-DDThh:mm:ssZ DEBUG: [a85c3e1a9c5ee77b;ac8bc10a5b7b4009] SDM Data Mover: SDM Full Sync: Set VM Cleanup Descriptor. YYYY-MM-DDT15:hh:mm:ssZ ERROR: [a85c3e1a9c5ee77b;ac8bc10a5b7b4009] SDM Data Mover: SDM Full Sync: Unsuccessful after 1 attempts over 42m23.015355429s. YYYY-MM-DDT15:hh:mm:ssZ ERROR: [a85c3e1a9c5ee77b;ac8bc10a5b7b4009] SDM Data Mover: SDM Full Sync: Unable to successfully complete SDM Full Sync operation.

From the vSphere UI, the following failure is seen:

Task Name Status: Perform LWD-based snapshot sync
Cannot complete the operation. See the event log for details. A disk was closed during the operation. This can happen due to VM lifeCycle events such as VM power off, vMotion and HA failover. The operation should be retried.

VMware's Product CloudDR is performing snapshot actions on the VM at the time of VM backup by PowerProtect Data Manager. In the above screenshot, we see the task 'Reconfigure virtual machine' being carried out by CloudDR when the PowerProtect Data Manager backup is running. This causes the PowerProtect Data Manager backup to fail.

Overlap of PowerProtect Data Manager backup and VMware's CloudDR activities

Change the Schedule of VMware's CloudDR to prevent overlap between CloudDR activities and PowerProtect Data Manager backup.