US 12,265,730 B2
Magnetic disk device and cache control method
Masachika Hosaka, Komae Tokyo (JP)
Assigned to Kabushiki KaishaToshiba, Tokyo (JP); and Toshiba Electronic Devices & Storage Corporation, Tokyo (JP)
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP); and TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, Tokyo (JP)
Filed on Sep. 14, 2023, as Appl. No. 18/467,140.
Claims priority of application No. 2023-027344 (JP), filed on Feb. 24, 2023.
Prior Publication US 2024/0289049 A1, Aug. 29, 2024
Int. Cl. G06F 3/06 (2006.01); G06F 12/0802 (2016.01)
CPC G06F 3/0656 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0659 (2013.01); G06F 3/0676 (2013.01); G06F 12/0802 (2013.01); G06F 2212/60 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A magnetic disk device comprising:
a control part configured to execute a cache control based on accompanying information included in a command; and
a storage part configured to store condition table data defining a corresponding relationship between the accompanying information and an operation of the cache control when receiving the command,
wherein
the command includes a data write command to a disk or a data read command from the disk,
the control part performs the cache control based on the condition table data, and
the accompanying information is a set of one or more Descriptors of a Command Duration Limits (CDL) feature set defined by ATA Command Set-5.