Hyper-V Failover Cluster

Question

Hi

A Windows Server 2016 Datacenter VM in a 2016 Hyper-V Failover Cluster.
I get the following error when changing the VM priority from 'High' to 'Medium'.
'Failed to execute control code '54526046'. For more data, see 'Information details'.
There is no further information in 'Information Details'.
I can't find a resolution to this.
Any help appreciated.

Answer 1

Hello @M_M ,

This error appears when the operation tries to access the disk and there is some conflict:

• there is not enough free space in host storage to proceed with the operation
• the disk / volume / file system is locked or protected by some running process
• User running the operation lacks permission over the host storage

Have you tried using Powershell and run-as with an elevated account?

Check priority: ​Get-ClusterGroup | Where-Object {$_.GroupType -eq "VirtualMachine"} | Select-Object Name, Priority
Set priority: (Get-ClusterGroup VM01).Priority=xxxx
settings:
High (3000)
Medium (2000): The default setting
Low (1000)
No Auto Start (0)

Hope this helps with your query,

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Answer 2

Actually, there is a little more information in 'Information Details'.

Error
The operation has failed.
Failed to execute control code '54526046'.

Error Code: 0x80070057
The parameter is incorrect