The HCX process will result in a complete read/write of VM data, regardless if it is on the same storage/LUN and it is unable to use the existing data to seed from.
Using RAV you are able to select a maintenance window, please check: https://docs.vmware.com/en/VMware-HCX/4.6/hcx-user-guide/GUID-741F47D5-A3C9-4D74-9672-E54D8791D8F0.h...
It is recommended not to have snapshots of the VM taken during the migration phase as it can interfere with the process.
Regards,
Chris
VCIX-DCV 2023 | VCP-NV 2023 | vExpert *** | CCNA R&S
