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Event ID 21103 — Cluster

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Applies To: Windows Server 2008

This is preliminary documentation and subject to change.

This aspect refers to all the events referring to clustered virtual machines.

Event Details

Product: Windows Operating System
ID: 21103
Source: Microsoft-Windows-Hyper-V-High-Availability
Version: 6.0
Symbolic Name: MSWVM_CLUSTER_CONFIG_OFFLINE_FAILED
Message: '%1' failed to unregister the virtual machine with the Virtual Machine Management Service.

Resolve

Check virtual machine registration

Changes to registration of the virtual machine resource are not allowed when the virtual machine is running. Turn off the virtual machine, manually unregister the virtual machine and delete the corresponding configuration files.

Verify

All the clustered resources are in a healthy state and failover operations are completing successfully.

Cluster

Hyper-V