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:
Oct. 01, 2013
Filed:
Feb. 08, 2011
Atsushi Yuhara, Yugawara, JP;
Masao Nakano, Odawara, JP;
Takao Sato, Odawara, JP;
Kazunobu Ohashi, Odawara, JP;
Takahiko Takeda, Minamiashigara, JP;
Atsushi Yuhara, Yugawara, JP;
Masao Nakano, Odawara, JP;
Takao Sato, Odawara, JP;
Kazunobu Ohashi, Odawara, JP;
Takahiko Takeda, Minamiashigara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
This storage controller includes a port unit and multiple processing units for inputting and outputting data to and from a storage apparatus. The port unit sorts the data I/O requests given from a host system to the corresponding processing units according to a table pre-defining the storage apparatus or a storage area in the storage apparatus to perform data I/O processing allocated to each of the processing units. The processing unit inputs data in the corresponding storage apparatus or the corresponding storage area according to the data I/O request sorted to itself from the port unit and, upon detecting a blockage of the other processing unit due to a failure, updates the table retained in each of the port units so as to sort the storage apparatuses or the storage areas allocated to the other processing unit to the remaining unblocked processing units.