US 12,353,332 B2
Storage device supporting multi-namespace and method of operating the same
Sungjin Kim, Suwon-si (KR); Jea-Young Kwon, Suwon-si (KR); Jaesub Kim, Suwon-si (KR); and Hongmoon Wang, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Dec. 6, 2023, as Appl. No. 18/531,155.
Claims priority of application No. 10-2023-0006344 (KR), filed on Jan. 16, 2023.
Prior Publication US 2024/0241835 A1, Jul. 18, 2024
Int. Cl. G06F 12/00 (2006.01); G06F 12/1027 (2016.01)
CPC G06F 12/1027 (2013.01) 20 Claims
OG exemplary drawing
 
1. A method of operating a storage device managing multi-namespaces, the method comprising:
deleting mapping information on a first namespace requested to be deleted from a first logical address space;
loading mapping information on a second namespace, corresponding to a second logical address space contiguous to the first logical address space, into a cache;
copying mapping information on the second namespace from the second logical address space to the first logical address space;
deleting the mapping information on the second namespace from the second logical address space; and
performing a requested write or read operation based on mapping information on the second namespace loaded into the cache based on there being a request for access to the second namespace before the copying the mapping information on the second namespace from the second logical address space to the first logical address space is completed.