RCT-Backups einer Hyper-VM mit vom Nutzer erstellten Prüfpunkten schlagen mit "Changeblocks are not properlyligned" fehl.

Riepilogo: KB-Artikel zur Besprechung von RCT-Backups, die auf VMs mit benutzerdefinierten Prüfpunkten (nicht Avamar) fehlschlagen.

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Sintomi

Backups von Hyper-VMs mit vom Nutzer erstellten Prüfpunkten (nicht von Avamar erstellt/recovery) schlagen mit Fehlern ähnlich der folgenden fehl:
 

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' 


 

Über den Dell1-Node:

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.



Aus der Datei winclustersvc.log (im Ordner C:\Program Files\avs\var, der der aktive Eigentümer des EMC Backup Agent-Service ist):

 

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)

 

Causa

Möglicher Codefehler in älteren Hotfixes wie #335554 für v19.4.

Risoluzione

Führen Sie ein Upgrade auf die neuesten Hotfixes für die folgenden Avamar-Plug-in-Versionen durch:

Hotfix #337285 für Version 19.4.100-124 des Avamar Hyper-V VSS-Plug-in-Hotfix
Nr. 337450 für Version 19.7. 100-82 des Avamar Hyper-V VSS-Plug-in-Hotfix
#337654 für Version 19.8.100-83 des Avamar Hyper-V VSS-Plug-ins

Befolgen Sie den Dell Knowledge Base-Artikel 211510, Avamar: Hyper-V VSS-Plug-in – Konfiguration und Installation der neuesten kumulativen Hotfixes für Version 19.4 und höher für detaillierte Verfahren zum Installieren oder Aktualisieren der neuesten kumulativen Hyper-V-Plug-in-Hotfixes Workaround umfasst das Zusammenführen oder Löschen des Prüfpunkts

zurück in die VM entweder durch Hyper-V Manager oder PowerShell:

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

Prodotti interessati

Avamar Plug-in for Hyper-V VSS, Avamar Server
Proprietà dell'articolo
Numero articolo: 000206345
Tipo di articolo: Solution
Ultima modifica: 30 mag 2023
Versione:  2
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