Hello,
We're using OMV Kralizec on a Supermicro based server with a Powerwalker 3000RT 2000W UPS device. It's been configured in OMV using the blazer_usb driver. The UPS itself works just fine and does what it should properly - it's able to detect when the line power goes away, initates system shutdown after 30 seconds delay, shuts two other slave servers in the process but doesn't do one thing, which is powering itself off, or switching into standby mode after all servers turn off. Because of that's it's impossible to bring the computers back online automatically after AC power returns. The UPS just keeps on beeping just like it does when AC fails and nothing happens when mains power returns - the hardware stays off.
What can be wrong here? What am I missing?