Hello, it is probably just a stupid question, but I am working in Telecom network, and I really wonder what kind of "maintenance" needs to put the server(s) and/or local network down for at least 12 hours per week ... When there is a patch this downtime is even much longer.
It cannot be a simple reboot, any clue someone ?
Moreover, isn't it possible to duplicate some part of the network, in order to decrease the downtime for the customers ?
thank you