Op Wo, 19 oktober, 2011 11:41, schreef Paul de Weerd: > So .. what is the fundamental difference from a 'real' UPS that can > signal the machine itself that power is going down ? You get to do > the same steps "in case power is restored while we're going down". >
The difference is that a smart UPS can be told to kill the power in the rc.shutdown script. If the UPS does what it is supposed to do, it will kill the power to the computer and wait until the power is restored or it will cycle the power to the computer if the power comes back after the 'kill power command' is received but before the power is killed. Maurice
