US 12,282,422 B2
Storage device and operating method thereof
Karan Singh, Suwon-si (KR); and Rajendra Singh, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jan. 19, 2022, as Appl. No. 17/578,678.
Claims priority of application No. 10-2021-0074039 (KR), filed on Jun. 8, 2021.
Prior Publication US 2022/0391318 A1, Dec. 8, 2022
Int. Cl. G06F 12/02 (2006.01)
CPC G06F 12/0238 (2013.01) [G06F 2212/202 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of operating a storage device, the storage device including a non-volatile memory device, and the method comprising:
providing a host with information indicating that it is possible to designate a data criticality and a priority for each of a plurality of namespaces of the non-volatile memory device, wherein the data criticality corresponds to a reliability level of memory cells for data storage and the priority corresponds to a speed at which data is processed;
receiving, from the host, a first request for designating a data criticality and a priority for a first namespace of the namespaces; and
generating a namespace mapping table in response to the first request, wherein the generating the namespace mapping table includes mapping each namespace of the namespaces of the non-volatile memory device to a data criticality, a priority, and a storage controller.