The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 20, 2002

Filed:

Dec. 18, 1998
Applicant:
Inventors:

Manabu Kitamura, Yokohama, JP;

Akira Yamamoto, Sagamihara, JP;

Shigeo Honma, Odawara, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G00F 1/210 ; G00F 1/204 ;
U.S. Cl.
CPC ...
G00F 1/210 ; G00F 1/204 ;
Abstract

A disk conforms to a fixed length format and a storage subsystem shapes a CKD format record from a host computer in a fixed length unit to store shaped data therein. A format conversion program reads a fixed length block from the disk and extracts the shaped CKD format data to obtain such information to access a file system as file management information to thereby access the file system. Moreover, in an operation to write data on the disk, the data which the storage subsystem has received from the host computer is shaped in the conversion program into a sequence of data in a format to be written on the disk and then the sequence of data is written in a fixed length format thereon. Resultantly, data can be shared between systems using mutually different data formats to store data in storages.


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