公开(公告)号：US20220011953A1

公开(公告)日：2022-01-13

申请号：US17013451

申请日：2020-09-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Xiang LIAN ,  Chao YANG

IPC: G06F3/06

Abstract: A provided a storage device configured to support a number of namespaces. The storage device includes a memory and a controller coupled to the memory. The controller includes a host interface layer and a flash translation layer configured to report to the host interface layer a first over-provisioning chunk from an over-provisioning pool and a first chunk separate from the over-provisioning pool. The controller is configured to receive a command at the host interface layer to utilize a portion of the memory for a first namespace from among the number of namespaces and the first namespace includes an unaligned chunk. The controller is configured to utilize the first over-provisioning chunk as the unaligned chunk of the first namespace. A number of over-provisioning chunks to be utilized as unaligned chunks is less than the number of namespaces.