公开(公告)号：US20220113899A1

公开(公告)日：2022-04-14

申请号：US17501225

申请日：2021-10-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kibeen Jung ,  Seungjun Yang ,  Byeonghui Kim ,  Jungmin Seo ,  Jaewoong Kim ,  Hyeongyu Min

IPC: G06F3/06

Abstract: An operation method of a storage device includes receiving a first write request; adding the first write request to a first fragment; selecting at least “n” (e.g., at least two) streams among a plurality of pre-allocated streams when a size of the first fragment, when a size of the first fragment is >=a reference value, based on a cosine similarity between the first fragment and each of the pre-allocated streams; applying input information to a machine learning model to detect a first sequential stream associated with the first fragment from among the at least “n” streams; allocating a stream identifier of the first sequential stream to the first fragment; and storing write data included in the first fragment based on the stream identifier of the first sequential stream. The input information includes statistical information of at least one of the “n” streams and the first fragment.

公开(公告)号：US20210223954A1

公开(公告)日：2021-07-22

申请号：US17029634

申请日：2020-09-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： SEUNGJUN YANG ,  Kibeen Jung ,  Byeonghui Kim ,  Jungmin Seo

IPC: G06F3/06 ,  G06F12/02 ,  G06N3/04 ,  G06N3/08

Abstract: The present disclosure provides an operating method of a storage controller. The operating method includes receiving user data and environmental information, obtaining logical-characteristic information and physical-characteristic information, defining a current state, obtaining expectation values, and performing a write operation. User data and environmental information is received from a non-volatile memory. The current state may be defined based on the logical-characteristic information and the physical-characteristic information. Expectation values may be obtained based on policy information and the current state. The write operation may be performed on the user data through a physical stream corresponding to a maximum value among the expectation values.