US 12,393,370 B2
Storage device setting zone where cold data is to be stored and method of operating the storage device
Kyu Ho Choi, Icheon-si (KR)
Assigned to SK hynix Inc., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Dec. 19, 2023, as Appl. No. 18/545,131.
Claims priority of application No. 10-2023-0104647 (KR), filed on Aug. 10, 2023.
Prior Publication US 2025/0053337 A1, Feb. 13, 2025
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0659 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0656 (2013.01); G06F 3/0673 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A storage device comprising:
a memory including a plurality of memory blocks and having a first memory area including memory blocks with a first write speed and a first read speed and a second memory area including memory blocks with a second write speed slower than the first write speed and with a second read speed slower than the first read speed; and
a controller configured to:
receive, from a host, provisioning information used to set a plurality of zones in the memory and
set a first zone from among the plurality of zones to store cold data based on a write booster type included in the provisioning information,
wherein the controller is configured to set the first zone in the first memory area if the write booster type is a first type,
wherein the controller is configured to set the first zone in the second memory area if the write booster type is a second type, and
wherein the controller is configured to set the first memory area as a buffer to temporarily store data to be written to the second memory area.