File update system

Abstract

Abstract PURPOSE:To reduce overflow occurrence and to improve file update efficiency by deleting overlap files between a 1st and 2nd external storage devices from the 1st external storage device and copying files in the 2nd external storage means to the 1st storage means. CONSTITUTION:The names of files stored on a master disk 1 as the 1st storage means and a transaction disk 2 as the 2nd storage means are read out by the file name read means 51 of an input/output processing part 5, passed through a file name sorting means 52, and compared by a file name comparing means 53. When the file names match each other, a file deletion means 54 deletes the file on the master disk 1 and the contents of the master disk 1 where a free area is formed are updated. Further, the master disk 1 is restored to its original state by the transaction 2 and the file copying means 55 of the processing part 5. This constitution reduces the overflow occurrence of the master disk and increases the file update efficiency.

Inventors

• 👤 Junko Ozaki
• 👤 尾崎　淳子

Bibliographic Details