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公开(公告)号:US20190205054A1
公开(公告)日:2019-07-04
申请号:US16330881
申请日:2017-02-23
Applicant: HITACHI, LTD.
Inventor: Yoshihiko FUJII , Shigeo HOMMA , Junji OGAWA , Yoshinori OHIRA
Abstract: A storage system according to one aspect of the present invention includes a plurality of storage devices using flash memory as a storage medium. The flash memory used for the storage device may include flash memory configured to operate each cell as a cell capable of storing n-bit information or a cell capable of storing m-bit information (where n