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Event ID: 21502 Source: Microsoft-Windows-Hyper-V-High-Availability

Level
Description
''Virtual Machine mmm'' live migration did not succeed at the source.

Migration failed.
Comments
 
This can occur if there is not enough physical memory on the destination server to accommodate the memory allocated to the virtual machine being migrated. Hyper-V requires that the amount of physical memory on the host server is greater than the total of the memory allocated to all of the virtual machines to be hosted by that server (plus an allocation for the host server).

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