RCT-sikkerhedskopieringer af en Hyper-VM med brugeroprettet kontrolpunkt mislykkes med "Ændringsblokke er ikke justeret korrekt"

Sikkerhedskopiering af Hyper-V VM'er med brugeroprettet kontrolpunkt (ikke Avamar-created/recovery) mislykkes med fejl i stil med følgende:
 

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' 

 

Fra DELL1-noden:

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.

Fra filen winclustersvc.log (placeret i mappen C:\Program Files\avs\var, som er den aktive ejer af EMC Backup Agent-tjenesten):

 

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)

 

Mulig kodefejl i ældre hotfixes som f.eks. #335554 til v19.4.

Opgrader til de nyeste hotfixes til følgende Avamar plug-in-versioner:

Hotfix #337285 til version 19.4.100-124 af Avamar Hyper-V VSS plug-in
Hotfix #337450 til version 19.7.7. 100-82 af Avamar Hyper-V VSS-plug-in-hotfix
#337654 til version 19.8.100-83 af Avamar Hyper-V VSS-plug-in

Følg Dell Knowledge Base-artikel 211510, Avamar: Hyper-V VSS-plug-in – Konfiguration og installation af de seneste kumulative hotfixes til version 19.4 og højere for detaljerede procedurer for installation eller opgradering af de seneste kumulative Hyper-V-hotfixes

Løsning omfatter omgåelse eller sletning af kontrolpunktet i VM enten af Hyper-V Manager eller PowerShell:

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