Concurrent logging of data layers within a tape storage device

A computer system for concurrent logging of performance data to a magnetic tape, the computer system comprising:

• a processor set;
• and
• a computer readable storage medium;
• wherein:
• the processor set is structured, located, connected, and/or programmed to run program instructions stored on the computer readable storage medium;
• and
• the program instructions include:
• first program instructions programmed to collect performance data relating to operations of a tape drive reading data on a magnetic tape;
• second program instructions programmed to represent the magnetic tape with a tape map having a data array structure representing sub-divisions of a usable length of the magnetic tape correlating to a wrap number and longitudinal position of the magnetic tape;
• third program instructions programmed to store, on the tape map, the performance data as standard-resolution data;
• and
• fourth program instructions programmed to store, on the tape map, the performance data as high-resolution data logged sequentially according to dataset processing order;
• wherein:
• the representing step establishes a first portion of the tape map for storing the standard-resolution data and a second portion of the tape map for storing the high-resolution data.

A computer program product comprising a computer-readable storage medium having a set of instructions stored therein which, when executed by a processor, causes the processor to concurrently log performance data to a magnetic tape by:

• collecting performance data relating to operations of a tape drive reading data on a magnetic tape;
• representing the magnetic tape with a tape map having a data array structure representing sub-divisions of a usable length of the magnetic tape correlating to a wrap number and longitudinal position of the magnetic tape;
• storing, on the tape map, the performance data as standard-resolution data;
• and
• storing, on the tape map, the performance data as high-resolution data logged sequentially according to dataset processing order;
• wherein:
• the representing step establishes a first portion of the tape map for storing the standard-resolution data and a second portion of the tape map for storing the high-resolution data.