QuickBackup for a VM that resides on Cisco HyperFlex using the Veeam Plugin for vCenter always fails. The following output can be found in the task log:
[timestamp] <23> Info [CiscoHX][X.X.X.X] Creating VM 'vm-ID' snapshot. SnapshotName 'VEEAM BACKUP TEMPORARY SNAPSHOT', snapshotDescription 'Please do not delete this snapshot. It is being used by Veeam Backup.', Memory 'False', Quiesce 'False'
[timestamp] <23> Info [CiscoHX] Reconnectable method: Retry is not needed.
[timestamp] <23> Error Failed to execute command on connection point 'X.X.X.X'
[timestamp] <23> Error {"message":"Failed take snapshot for vm vm-ID, serverUuid . A previously issued task is in progress on this entity. Entity: sthacpgki Previous TaskId: task-ID","messageId":0} (Veeam.Backup.SanPlugin.CiscoHXLib.CJsonWebRequestException)
[timestamp] <23> Error at Veeam.Backup.SanPlugin.CiscoHXLib.CCiscoHXRestApiInvoker.DoInvoke(Delegate dlg)
[timestamp] <23> Error Failed to create Cisco native snapshot for VM 'vm-ID' on host 'X.X.X.X'
[timestamp] <23> Error {"message":"Failed take snapshot for vm vm-ID, serverUuid . A previously issued task is in progress on this entity. Entity: sthacpgki Previous TaskId: task-ID","messageId":0} (Veeam.Backup.SanPlugin.CiscoHXLib.CJsonWebRequestException)
[timestamp] <23> Error at Veeam.Backup.SanPlugin.CiscoHXLib.CCiscoHXRestApiInvoker.DoInvoke(Delegate dlg)
[timestamp] <23> Error at Veeam.Backup.SanPlugin.CiscoHXLib.CCiscoHXRestApiInvoker.Invoke[Ret](ActionCiscoDelegate`1 dlg)
[timestamp] <23> Error at Veeam.Backup.SanPlugin.CiscoHXLib.CCiscoHXRestApiClient.CreateVMSnapshot(String vmMoRef, String snapshotName, String snapshotDescription, Boolean memory, Boolean quiesce)
[timestamp] <23> Error at Veeam.Backup.Core.CViVMCiscoSnapshotCreator.CreateCiscoSnapshot(String snapshotName, String snapshotDescription, Boolean useVMToolsQuiesce, Boolean memory)
[timestamp] <23> Error at Veeam.Backup.Core.CViVMCiscoSnapshotCreator.CreateSnapshot(String snapshotName, String snapshotDescription, IXmlLogger xmlTaskLogger, Boolean useVMToolsQuiesce, Boolean memory)
[timestamp] <23> Info An error has occured while freezing guest: {"message":"Failed take snapshot for vm vm-ID, serverUuid . A previously issued task is in progress on this entity. Entity: sthacpgki Previous TaskId: task-ID","messageId":0}. Trying to switch to persistent snapshot.
[timestamp] <23> Info [Soap] Connection 'vcenter:443:alpha.inet\account_name:False::0:23' is disposing.
[timestamp] <23> Info VM 'vm-ID' (Host 'vcenter') for creating snapshot was successfully unlocked.