公开(公告)号：US12008263B2

公开(公告)日：2024-06-11

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 ,  G11B20/12 ,  H03M13/15

CPC classification number: G06F3/0659 ,  G06F3/0619 ,  G06F3/0673 ,  G06F11/1469 ,  G11B20/1217 ,  H03M13/154 ,  G06F2201/82 ,  G11B2020/1238 ,  G11B2020/1292

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.