Backups de RCT de uma Hyper-VM com checkpoint criado pelo usuário falhando com "Changeblocks are not properly aligned"

Backups de VMs do Hyper-V com checkpoint criado pelo usuário (não criado pelo usuário/recuperação) falhando com erros semelhantes aos seguintes:
 

avhypervvss Error : The plugin on remote client DELL1 (192.168.1.3) terminated with code 10020: completed with errors, client log should be examined
avhypervvss Error : 1 remote client(s) failed to complete operation on the remote file targets
avhypervvss Error : Failed to backup Virtual Machine 'EMCPC' 

 

No nó DELL1:

avhypervvss Error : Changeblocks are not properly aligned to parent disk(\\?\C:\ClusterStorage\Volume6\EMCPC\EMCPC-C.VHDX). Full backup is recommended as Incremental cannot be promoted to Full at this stage of program.
avhypervvss Error : Changeblocks are not properly aligned to parent disk(\\?\C:\ClusterStorage\Volume6\EMCPC\EMCPC-E.VHDX). Full backup is recommended as Incremental cannot be promoted to Full at this stage of program.
avhypervvss Error : Backup extent creation failed for chain \\?\C:\ClusterStorage\Volume6\EMCPC\EMCPC-C.VHDX
avhypervvss Error : Backup extent creation failed for chain \\?\C:\ClusterStorage\Volume6\EMCPC\EMCPC-E.VHDX
...
avhypervvss Error : Failed to parse disk chain C:\ClusterStorage\Volume6\EMCPC\EMCPC-C.VHDX
avhypervvss Error : Backup stream generator encountered an internal error. Failed to stream file '00000226\C:\ClusterStorage\Volume6\EMCPC\EMCPC-C.VHDXguid'.
avhypervvss Error : Processing workorder Daily - 8_00pm to 05_59am-DR VM Group 01-1662598800011#301 (pid:3032-Hyper-V VSS) in stream mode failed.

No arquivo winclustersvc.log (localizado na pasta C:\Program Files\avs\var que é o proprietário ativo do serviço EMC Backup Agent):

 

winclustersvc WARN: WMI API returned error: 'Failed to get the disk information.

The Hyper-V Virtual Machine Management service encountered an unexpected error: There is no change tracking data available associated with the specified change tracking identifier. (0xC03A0030).'
winclustersvc INFO: System.Management.ManagementException: Failed to get the disk information.

The Hyper-V Virtual Machine Management service encountered an unexpected error: There is no change tracking data available associated with the specified change tracking identifier. (0xC03A0030).
at EMC.BRS.HypervProxy.Common.WmiUtilities.ValidateOutput(ManagementScope scope, ManagementBaseObject outputParameters, Boolean throwIfFailed, Boolean printErrors)
at EMC.BRS.WMI.Virtualization.HypervDataProvider.GetRCTExtentsforVm(String vhdPath, String RCTId, UInt64 vhdSize, HypervVm& vm, Boolean bPromoteToFullOnExtentsError)

 

Possível bug de código em hotfixes mais antigos, como #335554 for v19.4.

Faça upgrade para os hotfixes mais recentes para as seguintes versões do plug-in do Avamar:

Hotfix #337285 para a versão 19.4.100-124 do hot fix do plug-in
do Avamar Hyper-V VSS nº 337450 para a versão 19.7.100-82 do hot fix do plug-in
VSS do Avamar Hyper-V #337654 para a versão 19.8.100-83 do plug-in

do Avamar Hyper-V VSS Siga o artigo 211510 da base de conhecimento da Dell, Avamar: Plug-in VSS do Hyper-V - Configuração e instalação dos hotfixes cumulativos mais recentes para a versão 19.4 e posteriores, para procedimentos detalhados de instalação ou upgrade dos hotfixes

cumulativos mais recentes do plug-in Hyper-V A solução temporária envolve a fusão ou exclusão do checkpoint de volta na VM pelo Hyper-V Manager ou pelo PowerShell:

https://learn.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/checkpoints