公开(公告)号：US20210181992A1

公开(公告)日：2021-06-17

申请号：US17183657

申请日：2021-02-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ying WANG ,  Xiaobao ZHAO

IPC: G06F3/06 ,  G06F11/14 ,  H03M13/15 ,  G11B20/12

Abstract: A data storage method and apparatus, and a storage system are provided. The method is applied to a storage system. The storage system includes at least one first memory and a second memory. The at least one first memory includes a plurality of storage areas. Garbage collection is performed based on each of the plurality of storage areas. In the method, a time length between the earliest expiration time and the latest expiration time in expiration time of valid data stored in a target storage area is limited to be less than or equal to a preset time length, so that the expiration time of the valid data stored in the target storage area is comparatively centralized.