NetWorker: O backup do NMM Hyper-V apresenta falha ao "Falha ao converter o checkpoint da VM de<VMName>para o ponto de referência"

Summary: O backup do NMM Hyper-V falha com o erro Falha ao converter o checkpoint da VM de ao ponto de referência.

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Symptoms

O backup do Hyper-V do NetWorker Module for Microsoft (NMM) falha para máquinas virtuais específicas, outros backups de máquinas virtuais estão funcionando bem.

O log nsrnmmsv mostra:

Date/Time PERF [1728317672]: Post-backup is completed
Date/Time Error: 
Date/Time  Failed to convert VM checkpoint of <VMNAME> to reference point.
Date/Time Error: 
Date/Time Deleting checkpoint of VM  <VMNAME>  

Ao ativar o nível de depuração, Hyper-v shellmgmt logs mostram:

Datetime:Getting disk identifier for disk ~\Don't delete it\Virtual Hard Disks\System_GUID.avhdx

Datetime:In RunPowerShellScript() function, strScript Get-VHD -Path '~\Don't delete it\Virtual Hard Disks\<diskname>.vhdx' |select -Property DiskIdentifier

Datetime:Failed to get VMHardDiskDrive for the VM <VMNAME> The string is missing the terminator: '.

Cause

Durante o backup, o seguinte comando do PowerShell para obter o identificador VHDX da máquina virtual 

Get-VHD -Path  <VHDX_PaTH> | select -Property DiskIdentifier

Se o nome da máquina virtual ou o nome do caminho tiver caracteres incompatíveis, o backup apresentará falha.

Nesse caso, o caminho tinha Não excluir;

Resolution

Altere o nome da máquina virtual e/ou do caminho do disco, evite usar aspas simples ou caracteres especiais 

Nota:

Consulte o Guia do Dell NetWorker Module for Microsoft for Hyper-V

A tabela Caracteres especiais compatíveis lista os caracteres especiais compatíveis com o NMM.
Exemplos de uso de caracteres especiais:

● Virtual machine name: VM@emc%1%
● VHD paths: C:\@folder\&^%
● VHD names: C:\folder\VM@emc(1).vhd
● Files and folders inside virtual machine: samplefile!@#.txt
● Folder paths: C:\@folder\&^\sample.txt
● Mount paths: C:\mountSplcharvms\!@#$%

https://www.dell.com/support/manuals/en-us/networker-module-for-microsoft/nmm_hyper_v_user_guide_19.10/supported-and-unsupported-features-for-hyper-v-backups?guid=guid-dc0011a3-bf46-4a96-974b-c79fe0109c90⟨=en-us

 

Affected Products

NetWorker Module for Microsoft
Article Properties
Article Number: 000247114
Article Type: Solution
Last Modified: 13 Feb 2025
Version:  2
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