Storage system, management apparatus and storage medium

A management apparatus, c p sing:

• a memory;
• and
• a processor coupled to the memory and configured to:
• manage a library device including one or more drive devices, an accommodation shelf in which accommodation cells that accommodate a plurality of tape media are arranged, and a robot that performs conveyance operation to convey the tape media between the accommodation cells and the drive devices,
• receive an instruction to write a plurality of pieces of writing data
• set, as an erasure coding set, two or more pieces of writing data having a data size less than a threshold among the plurality of pieces of writing data, and
• allocate the two or more pieces of writing data to one of the plurality of tape media.

A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process comprising;

• managing a library device including one or more drive devices, an accommodation shelf in which accommodation cells that accommodate a plurality of tape media are arranged, and a robot that performs conveyance operation to convey the tape media between the accommodation cells and the drive devices;
• receiving an instruction to write a plurality of pieces of writing data;
• setting, as an erasure coding set, two or more pieces of writing data having a data size less than a threshold among the plurality of pieces of writing data;
• and
• allocating the two or more pieces of writing data to one of the plurality of tape media.