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US 12,265,730 B2Granted
Magnetic disk device and cache control method
AssigneesKabushiki KaishaToshiba, Toshiba Electronic Devices & Storage Corporation
InventorMasachika Hosaka
Life of this patent
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Abstract
According to one embodiment, a magnetic disk device comprises a control part configured to execute a cache control based on accompanying information included in a command wherein the command includes a data write command to a disk or a data read command from the disk.
Claims11
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.
4 more elements
A cache control method of a magnetic disk device, comprising:
- executing a cache control based on accompanying information included in a command;
- storing condition table data defining a corresponding relationship between the accompanying information and an operation of the cache control when receiving the command;
- and
- performing the cache control based on the condition table data, wherein
- the command includes a data write command to a disk or a data read command from the disk, 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.
3 more elements
Dependencies are inferred from the claim text.