Data storage network management method, computer program and server

A computer program product stored on a computer-readable data storage medium for, when executed on a server for managing access to a data storage network comprising a plurality of data storage volumes and a plurality of paths for connecting the server to a selected one of said data storage volumes, performing the steps of:

• a) determining, for an individual path, a plurality of performance parameters of said path during an interval;
• b) calculating a path performance metric from a combination of the determined performance parameters;
• and, if the path performance metric falls below a predefinable quality standard:
• c) blocking the individual path from being used for a data communication with one of the data storage volumes;
• and
• d) signaling the blocking of the individual path.

A server for managing access to a data storage network comprising a plurality of data storage volumes and a plurality of paths for connecting the server to a selected one of said data storage volumes, said server being adapted to:

• a) determine, for an individual path, a plurality of performance parameters of said path during an interval;
• b) calculate a path performance metric from a combination of the determined performance parameters;
• and, if the path performance metric falls below a predefinable quality standard:
• c) block the individual path from being used for a data communication with one of the data storage volumes;
• and
• d) signal the blocking of the individual path.