Hi LucD,
Thank you for your very fast reply!
Sorry for my bad english, it make my explanations are not clear. My "migrate" word means vMotion action. My scenario is:
There is a cluster with two esxi hosts, host A and host B. The VM1 is running on the host A. Suddenly, host A come down to disconnected status, and bring VM1 come down to disconnected status also. We can still ping to both, esxi host and VM1. VM1 is still running normally. Now, I need to reboot host A to fix error (don't discuss about why reboot to fix) and I want to vmotion VM1 to host B safety before reboot host A from console. And my question is: how to do this vmotion VM1 from disconnected host A to host B without shutdown guest OS of VM1?
That case vSphere can not do anything, so I wonder that script (powershell / powerCLI) can help? Or any actions can I do to minimize VM1 downtime before reboot the host A?
Thank you./.