MOF file exceeded max size limit

[Thomas-Methner]

Description of the issue

Hej,

I am doing recovery test for backups of aad users (1000+ users). My envelopesize is already 128mb, but I am running into this error:
MOF file size exceeded max size limit.
+ CategoryInfo : ResourceBusy: (root/Microsoft/...gurationManager:String) [], CimException
+ FullyQualifiedErrorId : MI RESULT 27
+ PSComputerName : localhost

From some issues documented here it seems like it is proposed to break down the backups even more.
My question is, what are the actual limits for the mof files size?
Best

Microsoft 365 DSC Version

1.24.904.1

Which workloads are affected

Azure Active Directory (Entra ID)

The DSC configuration

@{
    AllNodes = @(
        @{
            NodeName                    = "localhost"
            PSDscAllowPlainTextPassword = $true;
            PSDscAllowDomainUser        = $true;
            #region Parameters
            # Default Value Used to Ensure a Configuration Data File is Generated
            ServerNumber = "0"

        }
    )
    NonNodeData = @(
        @{
            # Tenant's default verified domain name
            OrganizationName = "xyz.onmicrosoft.com"

            # Azure AD Application Id for Authentication
            ApplicationId = "xyz"

            # The Id or Name of the tenant to authenticate against
            TenantId = "xyz.onmicrosoft.com"

            # Thumbprint of the certificate to use for authentication
            CertificateThumbprint = "xyz"

        }
    )
}

Verbose logs showing the problem

AUSFÜHRLICH: Vorgang "CIM-Methode aufrufen" mit den folgenden Parametern durchführen, "'methodName' =
SendConfigurationApply,'className' = MSFT_DSCLocalConfigurationManager,'namespaceName' =
root/Microsoft/Windows/DesiredStateConfiguration".
AUSFÜHRLICH: An LCM method call arrived from computer vm-colli-0 with user sid
S-1-12-1-1239345608-1301440490-3343379598-3488004834.
AUSFÜHRLICH: [vm-colli-0]: LCM:  [ Start  Set      ]
AUSFÜHRLICH: [vm-colli-0]: LCM:  [ End    Set      ]
MOF file size exceeded max size limit.
    + CategoryInfo          : ResourceBusy: (root/Microsoft/...gurationManager:String) [], CimException
    + FullyQualifiedErrorId : MI RESULT 27
    + PSComputerName        : localhostAUSFÜHRLICH: Vorgang "CIM-Methode aufrufen" wurde abgeschlossen.
AUSFÜHRLICH: Die Ausführung des Konfigurationsauftrags hat 73.426 Sekunden gedauert.

Environment Information + PowerShell Version

OsName               : Microsoft Windows 11 Enterprise multi-session
OsOperatingSystemSKU : 175
OsArchitecture       : 64-Bit
WindowsVersion       : 2009
WindowsBuildLabEx    : 22621.1.amd64fre.ni_release.220506-1250
OsLanguage           : en-US
OsMuiLanguages       : {en-US, de-DE}

Name                           Value
----                           -----
PSVersion                      5.1.22621.4391
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.22621.4391
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

[FabienTschanz]

@Thomas-Methner You can set the MaxEnvelopeSizeKb in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WSMAN\Client to a value like 1000000, which is approx. 1GB. Maybe that will work?

[Thomas-Methner]

@FabienTschanz hej. My value is about 512MB at the moment, but I will try the maximum also. I hope there is some experience here with the filesizes in general. The only other option I see is to chunk the exports right away by e.g. export groups a-c/ d-f and so on.