A Service Level Agreement Formal Model for Cloud ComputingService Level Agreement • April 28th, 2015
Contract Type FiledApril 28th, 2015Recalling the definition of such attribute: Monthly Uptime Percentage is calculated by subtracting from 100% the average of the Error Rates from each five minute period in the monthly billing cycle. Error Rate is the total number of internal server errors returned by Amazon S3 as error status InternalError or Ser- viceUnavailable divided by the total number of re- quests during that five minute period(Amazon).