The reliability of a file system considerably depends upon how it deals with on-disk data corruption. A file system should ideally be able to detect and recover from all kinds of data corruptions on disk. ZFS is a new filesystem that arrives almost a generation after the introduction of other desktop filesystems like ext and NTFS and makes strong claims about its reliability mechanisms.In this ...

A large number of problems in manufacturing processes, production planning, finance and engineering design require an understanding of potential sources of variations and quantification of the effect of variations on product behavior and performance. Traditionally, in engineering problems uncertainties have been formulated only through coarse safety factors. Such methods often lead to overdesig...

The modern computer and network system, is composed of tens of thousands of components. Any faults in components can affect reliability of the whole system. In the process of running, elements will gradually age and failure rate gradually increase. However, the rate at which these elements age is not synchronous. Thus, in which cases should the elements be upgraded or replaced and in which case...