You must be familiar with some of the techniques you can use to migrate VM’s onto AHV from other hypervisors. These include our popular Move solution, if you wished to move away from ESXi or Hyper-V. Another way is to add the VM’s into a Protection Domain and migrate the PD itself. Of course, this is only compatible with Nutanix clusters being the source and destination cluster.
As much as we would not want you to, there could arise situations where you may need to transfer VM(s) back to a different hypervisor. Currently, Move does not apply to this use-case. The quickest way would be to set up a Protection Domain as described above. However, this is complicated if the VM’s are already being protected and replicated onto other clusters. You would not wish to remove them and affect the processes in place.
What do you do then?
This document should assist you in the process. On a high level, it includes
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Powering off the VM
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Using the qemu utility to convert the vdisk
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Uploading the new disk to the destination host/datastore
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Creating the new VM
PS: Please note that this is not an officially supported workflow. Also please do not run the qemu utility on the CVM as it could increase the CVM load average and affect system performance.