1. Unable to migrate the VM to another host. What could be possible reasons.
The reasons for this could be if the VM has a snapshot or if VM has RDM or if EVC mode is not enabled on the cluster. am i missing anything.
2. Unable to poweron virtual machine. what could be the reasons for not powering on. i am not sure on this.
There can be a wide range of reasons a VM cannot vMotion and more concerningly cannot power on - start with attempting to power it on, noting the error message when it fails to power on and looking at the latest vmware.log in the VMs namespace folder. Attach it here if possible.