I'm migrating a server with 2 PSUs from 120 volts to 240 volts, and I'd rather not take it offline. It seems like I should be able to just move the PSUs to the new voltage one at a time, since they are not connected to each other.
Would it cause problems to run one PSU on 120 volts and one PSU on 240 volts for the time it takes to rack a PDU?