公开(公告)号：US20150161000A1

公开(公告)日：2015-06-11

申请号：US14565107

申请日：2014-12-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ji Hong KIM ,  Tae Jin KIM ,  Ji Sung PARK ,  Sung Jin LEE

IPC: G06F11/10 ,  G06F3/06

CPC classification number: G06F11/108 ,  G06F3/0608 ,  G06F3/0641 ,  G06F3/0688 ,  G06F3/0689

Abstract: Provided are a nonvolatile memory device and a deduplication method thereof. The nonvolatile memory device includes a plurality of data storages written in a unit of data block; and a storage controller dividing write-requested data in a unit of data block to generate a plurality of data blocks, determining whether each of predetermined data blocks from among the plurality of data blocks is duplicated, generating parity data with reference to non-duplicated data blocks from among the predetermined data blocks, and controlling the plurality of data storages such that the parity data and the non-duplicated data blocks are written into at least one of the plurality of data storages. Since a deduplication operation is performed before generating parity data to assure reliability of data, the number of write operations is reduced and restoration probability of the nonvolatile memory device increases.

Abstract translation: 提供一种非易失性存储器件及其重复数据删除方法。 非易失性存储器件包括以数据块为单位写入的多个数据存储器; 以及存储控制器，以数据块的单位分割写请求的数据，以生成多个数据块，确定来自多个数据块中的每个预定数据块是否被复制，参考未重复的数据产生奇偶校验数据 并且控制多个数据存储器，使得奇偶校验数据和非复制数据块被写入到多个数据存储器中的至少一个数据存储器中。 由于在产生奇偶校验数据之前执行重复数据删除操作以确保数据的可靠性，所以写入操作的数量减少，并且非易失性存储器件的恢复概率增加。