公开(公告)号：US20220035569A1

公开(公告)日：2022-02-03

申请号：US17443554

申请日：2021-07-27

Applicant: Seagate Technology LLC

Inventor： Christopher Smith

IPC: G06F3/06 ,  G06F12/0804 ,  G06F12/0875

Abstract: Method and apparatus for managing data in a storage device, such as a solid-state drive (SSD). In some embodiments, a data storage device includes a main non-volatile memory (NVM), a host command queue that lists pending host read and host write commands, and a write cache which temporarily stores write data sets pending transfer to the NVM responsive to execution of the associated host write commands in the host command queue. A collision prediction circuit predicts a rate of future collisions involving the cached write data sets. A storage manager directs storage of the write data sets to a first target location responsive to the rate of future collisions being at a first level, and directs storage of the write data sets to a different, second target location responsive to the rate of future collisions being at a different, second level.

公开(公告)号：US11822817B2

公开(公告)日：2023-11-21

申请号：US17443554

申请日：2021-07-27

Applicant: Seagate Technology LLC

Inventor： Christopher Smith

IPC: G06F3/06 ,  G06F12/0875 ,  G06F12/0804

CPC classification number: G06F3/0659 ,  G06F3/0611 ,  G06F3/0679 ,  G06F12/0804 ,  G06F12/0875 ,  G06F2212/1024 ,  G06F2212/2022

Abstract: Method and apparatus for managing data in a storage device, such as a solid-state drive (SSD). In some embodiments, a data storage device includes a main non-volatile memory (NVM), a host command queue that lists pending host read and host write commands, and a write cache which temporarily stores write data sets pending transfer to the NVM responsive to execution of the associated host write commands in the host command queue. A collision prediction circuit predicts a rate of future collisions involving the cached write data sets. A storage manager directs storage of the write data sets to a first target location responsive to the rate of future collisions being at a first level, and directs storage of the write data sets to a different, second target location responsive to the rate of future collisions being at a different, second level.