File data storage management method, file data storage device, program executing processing for storing file data, and storage medium

A file data storage device for storing file data into a storage area divided into a plurality of blocks, comprising the following portions:

• a block management table generating portion for generating a block management table for managing whether or not data is being stored in the block;
• a unit attribute table portion for generating a unit attribute table for managing an attribute of the unit constituted by a continuous plurality of the blocks, the unit attribute table including a usage status of each unit, and information determining whether or not real time data can be stored;
• and
• a data storing portion for executing processing for storing the file data based on the unit attribute table, the executed processing including:
• in a case where the file data to be stored is real time data, referencing the unit attribute table, searching an unused unit where the real time data can be stored, and storing the file data into the block corresponding to the searched unit;
• and
• in a case where the file data to be stored is non-real time data, referencing the unit attribute table, searching the unit where the non-real time data is already stored in a portion of the blocks, and storing the file data into the unused block corresponding to the searched unit.

A file data storage device for storing file data into a storage area divided into a plurality of blocks, comprising the following means:

• means for generating a block management table for managing whether or not data is stored in the block;
• means for generating a unit attribute table for managing an attribute of the unit constituted by a continuous plurality of the blocks, the unit attribute table including a usage status of each unit, and information determining whether or not real time data can be stored;
• and
• means for executing processing for storing the file data based on the unit attribute table, the executed processing including:
• in a case where the file data to be stored is real time data, referencing the unit attribute table, searching the unit unused unit where the real time data can be stored, and storing the file data into the block corresponding to the searched unit;
• and
• in a case where the file data to be stored is non-real time data, referencing the unit attribute table, searching the unit where non-real time data is already stored in a portion of the blocks, and storing the file data into the unused block corresponding to the searched unit.

A program for executing processing for storing file data into a storage area divided into a plurality of blocks, comprising the following processing elements:

• processing for generating a block management table for managing whether or not data is stored in the block;
• processing for structuring a unit from a continuous plurality of the blocks, and generating a unit attribute table for managing an attribute of each unit, the unit attribute table including a usage status of each unit, and information determining whether or not real time data can be stored;
• and
• data storage processing for storing the file data based on the unit attribute table, the data storing processing including:
• in a case where the file data to be stored is real time data, referencing the unit attribute table, searching the unused unit where the real time data can be stored, and storing the file data into the block corresponding to the searched unit;
• and
• in a case where the file data to be stored is non-real time data, referencing the unit attribute table, searching the unit where non-real time data is already stored in a portion of the blocks, and storing the file data into the unused block corresponding to the searched unit.