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. 27, 2017
Filed:
Jul. 02, 2015
Hitachi, Ltd., Tokyo, JP;
Hitachi Information & Telecommunication Engineering Ltd., Yokohama-shi, Kanagawa, JP;
Mitsuo Hayasaka, Tokyo, JP;
Koji Yamasaki, Yokohama, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
Upon receipt of an I/O request instructing storage of data in a storage devicefrom a host apparatus, a storage apparatusselects a de-duplication process method to be applied to the received data, based on at least any of influence on processing performance of the storage apparatusto be performed by execution of a first de-duplication process method (inline method) in which the de-duplication process is performed on the data immediately after the receipt of the I/O request, influence on the processing performance of the storage apparatusto be performed by execution of a second de-duplication process method (post-process method) in which the de-duplication process is performed on the data at later timing, and the size of a temporary storage deviceto be required for the processing of the data by the second de-duplication process method.