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The System Center Virtual Machine Manager server uses Run As accounts to communicate with its agents that are installed on Hyper-V hosts. It also authenticates virtualization hosts in the System Center Virtual Machine Manager console. These Run As accounts deploy VMs, configure existing Hyper-V hosts and deploy Hyper-V clusters and bare-metal environments.
Microsoft provides a PowerShell cmdlet to check if System Center Virtual Machine Manager (SCVMM) Run As account credentials are correct. SCVMM won't show a warning or error message if a Run As account has expired or experiences issues. Instead, admins will receive an authentication error message in the SCVMM job window.
In most cases, Active Directory (AD) Run As accounts manage existing Hyper-V hosts. The PowerShell cmdlet that tests SCVMM Service account credentials is Test-SCDomainCredential. As its name implies, this cmdlet only tests the credentials of a Run As account created in AD.
To check the credentials of single Run As account, run the following PowerShell commands in the PowerShell window of the SCVMM server:
$ThisRunAsAccount = Get-Credential
Test-SCDomainCredential –Credential $ThisRunAsAccount
If the credentials stored in the $ThisRunAsAccount variable are correct, the cmdlet output will show as TRUE. If there are issues with the credentials, the output will show as FALSE.
If you've created several Run As Accounts in SCVMM for different purposes, and need to get a list of Run As Accounts, execute the following PowerShell command on a SCVMM server:
Get-SCRunAsAccount | Get-SCRunAsAccountConsumer | Select-Obect RunAsAccount | Export-CSV “C:\Temp\AllRunAsAccounts.CSV” –NoTypeInformation.
Once you have a list of Run As accounts, you can verify account credentials any time you encounter authentication issues on the SCVMM server.
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