Hello , I'll have to use two pixelmad on a single system .

the system it's made by using

two mac mini intel 1.66 . 2 giga ram .

and two artnet box output box .

Now I don't understood how to use the back up system , I'll set one mini as master and the other as back up . but how does that will safety save my show in case the fisrt mini crash / shut ?

thanks