In a srever farm such as that used by Amazon or abay, a single failure does not cause the entire system to crash. Intead, it will reduce the number of requests that canbe satisfied at any one time.
If a company has 10000 computers, each with a MTTF of 35 days,and it experiences catastrophic failure only if 1/3 of the computers fail,what is the MTTF for the system? If costs an extra $1000, per computer, to double the MTTF, would this be a good business decision?Show your work.