公开(公告)号：US20190235794A1

公开(公告)日：2019-08-01

申请号：US16375596

申请日：2019-04-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sina HASSANI ,  Anahita SHAYESTEH ,  Vijay BALAKRISHNAN

IPC: G06F3/06

CPC classification number: G06F3/0679 ,  G06F3/06 ,  G06F3/0616 ,  G06F3/0643 ,  G06F3/0652 ,  G06F3/0659 ,  G06F3/0688

Abstract: A method of selecting among a plurality of I/O streams through which data is to be written to a multi-streaming flash storage device is presented. According to an example embodiment, the method comprises: assigning write sequences of similar length to the same I/O streams; receiving instructions for a write operation, the instructions including a starting logical block address (LBA) and a number of blocks of data to be written; determining whether the write operation is part of an existing write sequence; identifying an I/O stream associated with an existing write sequence; and providing a stream ID of the identified I/O stream to the multi-streaming flash storage device.

公开(公告)号：US20170242583A1

公开(公告)日：2017-08-24

申请号：US15093682

申请日：2016-04-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Zhengyu YANG ,  Sina HASSANI ,  Manu AWASTHI

IPC: G06F3/06 ,  G06F12/02

CPC classification number: G06F3/061 ,  G06F3/064 ,  G06F3/0659 ,  G06F3/0679 ,  G06F12/0246 ,  G06F2212/1016 ,  G06F2212/214 ,  G06F2212/7201

Abstract: A method for providing a memory translation layer includes: receiving write request streams from a host computer; selectively storing each write request stream into a sequential zone, a K-associative zone, and a random zone of log blocks of a nonvolatile memory based on the characteristics. A first group of the write request streams that are sequential and start from a header page of a log block are stored in the sequential zone. A second group of the write request streams that are sequential but do not start from a header page of a log block are stored in the K-associative zone. A third group of the write request streams that are random are stored in the random zone.

公开(公告)号：US20170228188A1

公开(公告)日：2017-08-10

申请号：US15098111

申请日：2016-04-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sina HASSANI ,  Anahita SHAYESTEH ,  Vijay BALAKRISHNAN

IPC: G06F3/06

CPC classification number: G06F3/0679 ,  G06F3/06 ,  G06F3/0616 ,  G06F3/0652 ,  G06F3/0659 ,  G06F3/0688

Abstract: A method of selecting among a plurality of I/O streams through which data is to be written to a multi-streaming flash storage device is presented. According to an example embodiment, the method comprises: assigning write sequences of similar length to the same I/O streams; receiving instructions for a write operation, the instructions including a starting logical block address (LBA) and a number of blocks of data to be written; determining whether the write operation is part of an existing write sequence; identifying an I/O stream associated with an existing write sequence; and providing a stream ID of the identified I/O stream to the multi-streaming flash storage device.