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:
Jun. 18, 2002
Filed:
Sep. 16, 1999
Yoshihiro Uchiyama, Odawara, JP;
Kenichi Takamoto, Odawara, JP;
Hitachi, Ltd., , JP;
Abstract
A structure of control units and storage units is provided in which, if a port for connecting the storage units fails, any storage unit in a plurality of storage unit groups can be accessed from one control unit. Specifically, a distinctively arranged structure is provided in which dual paths are provided, with each path connected to a plurality of storage unit groups, whereby, in normal operation, dual paths are used as data transfer paths to allow faster access. When a port or path failure occurs, the dual paths allow RAID functions to be maintained.
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