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Event ID 21101 — Cluster

  • Article

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: 21101
Source: Microsoft-Windows-Hyper-V-High-Availability
Version: 6.0
Symbolic Name: MSWVM_CLUSTER_MISSING_VMSTOREROOT
Message: Missing or invalid VmStoreRoot resource property

Resolve

Check external data root

Check the external data root location pointed to by the virtual machine you are trying to add as a cluster resource/bring online, and then try the operation again.

Verify

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

Cluster

Hyper-V