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.
Patent No.:
Date of Patent:
Jan. 07, 2003
Filed:
Nov. 24, 1998
Fujitsu Limited, Kawasaki, JP;
Abstract
The present invention is a disk control device and control method sharing an FBA disk unit between mainframes (global servers) using a variable-block format and open servers using a fixed-block format and which are host devices. The first host device using the variable-block format and the second host device using the fixed-block format connect individually through a dedicated first channel adapter and second channel adapter, respectively. The disk control device includes a conversion function between the variable-block format of the first host device and the fixed-block format of the disk unit. In addition, the second channel adapter includes a conversion function between the fixed-block format of the second host device and the variable-block format of the disk control device. These functions enable the first host device using the variable-block format and the second host device using the fixed-block format to share the resources of the disk unit.