公开(公告)号：US11513971B2

公开(公告)日：2022-11-29

申请号：US17101014

申请日：2020-11-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keonsoo Ha ,  Minseok Ko ,  Hyunjoo Maeng ,  Jihyung Park

IPC: G06F11/20 ,  G06F12/1018 ,  G06F12/02

Abstract: An address mapping method of a storage device which includes a plurality of sub-storage devices each including an over-provision area includes detecting mapping information of a received logical address from a mapping table, selecting a hash function corresponding to the received logical address depending on the mapping information, selecting any one, which is to be mapped onto the received logical address, of the plurality of sub-storage devices by using the selected hash function, and mapping the received logical address onto the over-provision area of the selected sub-storage device. The selected hash function is selected from a default hash function and a plurality of hash functions to provide a rule for selecting the any one of the plurality of sub-storage devices.

公开(公告)号：US10372541B2

公开(公告)日：2019-08-06

申请号：US15616268

申请日：2017-06-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jee-Seok Hyun ,  Keonsoo Ha

IPC: G06F11/00 ,  G06F11/10 ,  G06F3/06

Abstract: A storage device includes a plurality of first memories, a controller, and a second memory. The controller controls the first memories such that first and second data chunks associated with target data are distributively stored in the plurality of first memories. The controller generates a first intermediate parity using the first data chunk, which is processed immediately before the second data chunk. When the second data chunk is not a data chunk which is processed last in connection with the target data and the first intermediate parity is buffered in the second memory, the controller generates a second intermediate parity using the first intermediate parity buffered in the second memory and the second data chunk, and outputs the second intermediate parity to the second memory to be buffered.