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:
May. 13, 2003
Filed:
Sep. 20, 2001
Ichiro Okabayashi, Ikoma, JP;
Manabu Migita, Neyagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The data storage array apparatus having a RAID configuration according to the present invention comprises an internal access issuance part which issues internal access requests to data storage parts a group response monitoring part which monitors processing responses in the data storage parts until an internal access requesting group satisfies a predetermined condition and issues a notice of completion of monitoring, an external access response part which notifies to outside of completion of external access in response to a predetermined situation, a continuous response monitoring part which further continuously monitors, based on the notice of completion of monitoring, processing responses for each HDD with respect to an internal access request which was met with no processing response from the data storage parts, and an array operation control part which controls, based on continuous response monitoring information from the continuous response monitoring part, issuance of internal accesses to the respective data storage parts.