On 6/16/2014 2:39 AM, Alessandro Baggi wrote: > Hi Digimer, > there is a chance to make fencing without hardware, but only software? the most common fence in TCP connected systems is to disable the ethernet ports of the fenced system, done via a 'smart ethernet switch'. if you're using shared fiber storage, then you fence via the fiber switch. a more extreme fence is to switch off the power to the fenced system via a 'smart PDU'. -- john r pierce 37N 122W somewhere on the middle of the left coast