Write a 4 page essay on Physical & Network Fault Tolerance.Advanced planning and a proactive anticipation are necessary to avoid the problems caused by fault tolerance. It is better to incorporate the

Write a 4 page essay on Physical & Network Fault Tolerance.

Advanced planning and a proactive anticipation are necessary to avoid the problems caused by fault tolerance. It is better to incorporate the preventive measures while constructing the system itself rather than searching for solutions at a later stage when the problem occurs. The solution for a system failure can be addressed mainly in two ways. Design systems that are more reliable or fail less often. Design systems with built-in redundancy so that critical systems have backups that will continue to function should primary systems fail. (Fault Tolerance Reading Material, p.2)The first option seems to be bit difficult since apart from the internal parameters, external parameters also can cause system failures. The external parameters are always changing and it is probably impossible to make a system which can work every where under any circumstances. For example, some countries use 220V power supply whereas some others use 110V power supply. Moreover in some countries, the heat and humidity might be so high whereas in some other countries or locations it might be the opposite case. So constructing a system which can withstand any kind of external threat might be difficult. On the other hand, systems with facilities like backups even if the primary system fails, might be a good idea in tackling the system faults. Power is one of the prominent entities associated with physical fault tolerance. External power loss often creates problems to physical systems.