VMware : Failed to reconfigure virtual machine VM_Name. Invalid operation for device ‘X’.

By | April 20, 2019

Encountering the following error message trying to increase space on a vDisk for a guest machine on VMware ESXi?

Failed to reconfigure virtual machine VM_Name. Invalid operation for device ‘X’.

This is most likely because you have one or more snapshot(s) present. You need first to delete/consolidate all snapshot before increasing the size of a vDisk.

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