How to identify dangerous condition data in the data storage system

摘要

A method and apparatus for identifiying at-risk data in systems with redundant components is described. The method comprises the steps of representing the system by a plurality of nodes representing components and a plurality of paths representing communication paths among the components, each node having a path count representing the number of paths leading into the node, decrementing the path count for each node by one, for each failure of a path leading to the node, decrementing the path count for each node by one, for every path leading from each node having a zero path count, decrementing the path count for each node by one, for every path leading from a failed node, and presenting a graphical depiction of the nodes and the paths to a user. IMAGE