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:
Nov. 08, 2022
Filed:
Aug. 28, 2020
Hitachi, Ltd., Tokyo, JP;
Hiromichi Iwase, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
A distributed storage system having a plurality of nodes that include a first node that stores write data in a storage device, and a second node that stores a redundancy code of the write data. The first node is configured to select a second node, among the plurality of nodes, to store the redundancy code after receiving the write data; and send the write data to the selected second node. The second node is configured to receive and hold the write data, determine whether a prescribed starting condition is met asynchronously with reception of the write data, calculate the redundancy code and a plurality of pieces of data and store the redundancy code in the storage device if the prescribed starting condition is met, hold the write data until a prescribed deletion condition is met and delete the write data after the prescribed deletion condition is met.