US 11,698,738 B2
Multi-namespace storage device, electronic system including the storage device, and method of operating the storage device
Hyun-Jin Kim, Seongnam-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jul. 22, 2021, as Appl. No. 17/382,694.
Claims priority of application No. 10-2020-0137977 (KR), filed on Oct. 23, 2020.
Prior Publication US 2022/0129158 A1, Apr. 28, 2022
Int. Cl. G06F 3/06 (2006.01); G06F 12/0882 (2016.01)
CPC G06F 3/064 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0652 (2013.01); G06F 3/0659 (2013.01); G06F 3/0679 (2013.01); G06F 12/0882 (2013.01); G06F 2212/7201 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A multi-namespace storage device, comprising:
a nonvolatile memory which comprises a first memory block and a second memory block different from the first memory block; and
a memory controller which receives from a host a command for requesting creation of a first namespace comprising a first logical block number and a second namespace comprising a first logical page number not included in the first logical block number and receives a physical mapping command for instructing physical mapping of the first namespace,
wherein the memory controller performs a first mapping operation by mapping the first logical block number to the first memory block and performs a second mapping operation by mapping the first logical page number to a first memory page included in the second memory block in response to the physical mapping command,
wherein the first namespace comprises a second logical page number not included in the first logical block number, and the memory controller performs a third mapping operation by mapping the second logical page number to the first memory block, together with the first mapping operation.