File management system and method for managing access and storag

Details File management system and method for managing access and storag File management system and method for managing access and storag

1993-09-29

1997-01-07

Black, Thomas G.

395621, 395625, G06F 700, G06F 1300

Patent

active

055926622

ABSTRACT:
Unique data block identifiers are assigned to the entire data block group of plural external memory devices. The file management information stores, in a table format, the unique data block identifiers in connection with a file held in the data block group. When a file management process is executed in accordance with the operation type (access, addition, registration, deletion) of file management, the file management information is referred to. Furthermore, a data block group management process is called and the operation is performed. When a data block shift process is executed, the data block group management process is called and the contents of the data block are shifted between external memory device based on the file management information. When the file management process or the data block shift process is executed, data stored in the file management information is rewritten on an as-needed basis.

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