US 11,854,630 B2
Storage device that uses a host memory buffer and a memory management method including the same
Dong-Ryoul Lee, Incheon (KR); Hyun Ju Yi, Hwaseong-si (KR); Jaeho Sim, Seoul (KR); Kicheol Eom, Seoul (KR); and Hyotaek Leem, Hwaseong-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Sep. 26, 2022, as Appl. No. 17/952,370.
Application 17/952,370 is a continuation of application No. 17/307,314, filed on May 4, 2021.
Application 17/307,314 is a continuation of application No. 16/539,729, filed on Aug. 13, 2019, granted, now 11,011,243, issued on May 18, 2021.
Claims priority of application No. 10-2018-0140166 (KR), filed on Nov. 14, 2018.
Prior Publication US 2023/0020537 A1, Jan. 19, 2023
Int. Cl. G11C 16/34 (2006.01); G06F 11/30 (2006.01); G06F 11/00 (2006.01); G06F 11/07 (2006.01); G11C 11/56 (2006.01); G06F 13/16 (2006.01); G06F 3/06 (2006.01)
CPC G11C 16/349 (2013.01) [G06F 3/064 (2013.01); G06F 3/0619 (2013.01); G06F 3/0673 (2013.01); G06F 11/008 (2013.01); G06F 11/076 (2013.01); G06F 11/3034 (2013.01); G06F 13/1673 (2013.01); G11C 11/5628 (2013.01); G11C 11/5642 (2013.01); G11C 16/3495 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A storage device comprising:
a nonvolatile memory; and
a controller coupled to the nonvolatile memory, and configured to monitor deterioration information for a first area included in an external buffer,
wherein the deterioration information includes a read count of the first area and/or a write count of the first area, and
when the read count exceeds a first value or when the write count exceeds a second value, the controller is configured to provide a corruption prediction notification to an external device that includes the external buffer.