This issue can occur when there are discrepancies between power states in vCenter Server and Cloud Director.
- The most common scenario is manual power change of VCD VMs in vCenter.
- Other scenarios such as a HA Event may be responsible for the discrepancies.
In any scenario, Cloud Director would generally receive an event to state the Power State now differs and will try to align.
- Once VCD begins this alignment, it is not expecting the state to vary i.e. if the VM was off, it expects it to remain off until vCenter processes it's ask to Power On.
- Should vCenter Power On/Off outside of the VCD ask, it may leave the VM in a state where the VCD ask now contradicts the state.
- VCD is asking for the VM to be Powered On, in VC it is already on.
- If the VCD Alignment task fails, it will revert to it's previous state, which now contradicts the VC state, leading to an Inconsistent state in Cloud Director.