Failure Analysis of Internet Services
نویسنده
چکیده
Un-availability can be quantitatively defined as the ratio of MTTR (mean time to repair) to the sum of MTTR (mean time to repair) and MTTF (mean time to failure). Decreasing MTTR is as valuable as increasing MTTF. By learning why systems fail, failure distribution across parts of an IS, we attempt to envision a plausible model for future Information Technology (IT). In this endeavor, we focus on discovering and characterizing failure causes, and suggesting methods to improve recovery from failures, consequently increasing availability. As an example, pervasive use of redundancy improves disaster tolerance. Improving recovery from failures automatically improves availability.
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