Vprotect: Los respaldos de Hyper-V fallan con el error Internal server (exportación)

Summary: El respaldo de Hyper-V falla con el error de vProtect "ExternalAPIException: Error interno del servidor"

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Symptoms

El respaldo falla con "ExternalAPIException: Error interno del servidor "

Revise los registros del nodo para ver el error que se muestra a continuación: 
[2024-04-10 20:24:18.531] ERROR [pool-5-thread-6] HypervRequestSender.send:43
[e4b640a5-7784-4195-a909-6294d3763d0f] ApiException, code 500

[2024-04-10 20:24:18.531] ERROR [pool-5-thread-6] ExportTask.run:135
[e4b640a5-7784-4195-a909-6294d3763d0f] Backup task failed:

com.dell.vprotect.engine.exception.ExternalAPIException: Internal Server Error
        at com.dell.vprotect.engine.hypervisor.hyperv.HypervRequestSender.send(HypervRequestSender.java:48) ~[engine.jar:?]
        at com.dell.vprotect.engine.hypervisor.hyperv.HypervApi.createAndUploadRctMap(HypervApi.java:283) ~[engine.jar:?]
        at com.dell.vprotect.engine.hypervisor.hyperv.vmexport.DdBoostExport.createAndUploadRctMapToDdBoostAndUpdateBackupFiles(DdBoost
Export.java:221) ~[engine.jar:?]
        at com.dell.vprotect.engine.hypervisor.hyperv.vmexport.DdBoostExport.lambda$exportIncremental$6(DdBoostExport.java:163) ~[engin
e.jar:?]

Compruebe los registros del agente de Hyper-V vProtect, y el error será similar a lo siguiente: 
2024/04/10 20:27:06.761 [e4b640a5-7784-4195-a909-6294d3763d0f] Microsoft.Management.Infrastructure.CimException: The WS-Management service cannot process the request. The computed response packet size (585610) exceeds the maximum envelope size that is allowed (512000).
   at Microsoft.Management.Infrastructure.Internal.Operations.CimSyncEnumeratorBase`1.MoveNext()
   at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
   at Microsoft.Management.Infrastructure.CimSession.InvokeMethod(String namespaceName, CimInstance instance, String methodName, CimMethodParametersCollection methodParameters, CimOperationOptions options)

Cause

El tamaño predeterminado de WSMan:\localhost\MaxEnvelopeSizeKb es 500 (kilobytes), lo que equivale a 512 000 bytes.

Si el agente intenta transferir más datos a través de DDBoost , se produce una excepción.

Resolution

Acceda al hipervisor que aloja la máquina virtual que tiene el respaldo fallido.
Compruebe el tamaño de WSMan:\localhost\MaxEnvelopeSizeKb (con PowerShell como administrador) 
PS C:\Users\Administrator> Get-Item -Path WSMan:\localhost\MaxEnvelopeSizeKb


   WSManConfig: Microsoft.WSMan.Management\WSMan::localhost

Type            Name                           SourceOfValue   Value
----            ----                           -------------   -----
System.String   MaxEnvelopeSizekb                              500


PS C:\Users\Administrator>

Aumente el valor del valor predeterminado de 500 a un valor mayor que la cantidad de bytes que se envían 
PS C:\Users\Administrator> Set-Item -Path WSMan:\localhost\MaxEnvelopeSizeKb 600
PS C:\Users\Administrator> Get-Item -Path WSMan:\localhost\MaxEnvelopeSizeKb


   WSManConfig: Microsoft.WSMan.Management\WSMan::localhost

Type            Name                           SourceOfValue   Value
----            ----                           -------------   -----
System.String   MaxEnvelopeSizekb                              600


PS C:\Users\Administrator>

Vuelva a ejecutar el respaldo

Affected Products

vProtect
Article Properties
Article Number: 000224451
Article Type: Solution
Last Modified: 06 Mar 2025
Version:  2
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