Disk array management unit for distributively recording data in

Details Disk array management unit for distributively recording data in Disk array management unit for distributively recording data in

1994-07-15

1998-03-03

Chan, Eddie P.

395621, 395441, G06F 1202

Patent

active

057245525

ABSTRACT:
A disk array apparatus employs portable optical disk. The apparatus determines whether a file should be concentrated recorded in a single optical disk or distributively recorded among a plurality of disks, in accordance with the amount of that file. With respect to an often-accessed file, the apparatus records it among a number of optical disks, or makes a duplicate copy of the file and stores the duplicate copy in an optical disk different from the optical disk containing the often-accessed file. Since the often-accessed file is handled in this manner, the apparatus enables efficient file management and permits a file to be accessed at high speed.

REFERENCES:
patent: 5459853 (1995-10-01), Best et al.
patent: 5463765 (1995-10-01), Kakuta et al.
Nikkei Computer (Mar. 9, 1992), pp. 86-99.
Patterson, et al: "A Case for Redundant Arrays of Inexpensible Disks (RAID): ACM: Association for Computing Machinery"., pp. 109-116, -1988.

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