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:
Aug. 23, 2005
Filed:
Jul. 19, 2001
Masahiro Kawaguchi, Odawara, JP;
Shizuo Yokohata, Ninomiya, JP;
Shinichi Nakayama, Chigasaki, JP;
Youichi Goto, Odawara, JP;
Masahiro Kawaguchi, Odawara, JP;
Shizuo Yokohata, Ninomiya, JP;
Shinichi Nakayama, Chigasaki, JP;
Youichi Goto, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A storage system includes a storage controller connected to higher-level devices and a plurality of storages connected to the storage controller for storing data from the higher-level devices. The storage controller includes a channel controller for establishing interface for the higher-level devices, the channel controller including trace information representing details of the interface, and storages for storing the trace information from the channel controller in a format which can be accessed by the higher-level devices. In this configuration, when the channel controller receives a trace information fetching indication from one of the higher-level devices, the channel controller transfers trace information to a cache memory and the storages or to the cache memory or the storages.