Hi Privera, If you restart one switch in the stack one of the other switches will become the master and will continue to function. Page 220 [URL]    
Dear, I have the following problem, I have a stack of 3 switches dell N3048 (6.0.1.3), in which the master switch does not answer the command line, I cannot do anything, but if I connect the serial cable to the other two stack switch, they tell me to connect it to the master (the one with the problem), it should be noted that the fault switch the problem is only from the administration, since the team has not lost connectivity. Therefore I have the following questions: I remain attentive to your comments or guidance. Slds PD: Sorry my English, it's from a google translator
Problem Stack Switch N3000