Disk drive biasing a refresh monitor with write parameter of a write operation
AssigneeWestern Digital Technologies, Inc.
InventorsChun Sei Tsai, William B. Boyle, Michael S. Rothberg
Life of this patent
Estimating the term…
Abstract
A disk drive is disclosed including a disk, and a head actuated over the disk. Control circuitry within the disk drive is operable to receive a write operation for a refresh zone of the disk, measure a write operation quality parameter that affects the quality of the write operation, and perform the write operation. An update function is enabled in connection with performing the write operation, wherein the update function is operable to update a refresh monitor as a function of the write operation and the write operation quality parameter. Data stored in the refresh zone of the disk is refreshed in response to the refresh monitor.
Claims14
A disk drive comprising:
- a disk;
- a head actuated over the disk;
- control circuitry operable to:
- receive a write operation for a refresh zone of the disk;
- measure a write operation quality parameter that affects the quality of the write operation during the write operation;
- perform the write operation;
- enable an update function in connection with performing the write operation, wherein the update function is operable to update a refresh monitor as a function of the write operation and the write operation quality parameter;
- and
- refresh data stored in the refresh zone of the disk in response to the refresh monitor.
A method of operating a disk drive, the disk drive comprising a disk, and a head actuated over the disk, the method comprising:
- receiving a write operation for a refresh zone of the disk;
- measuring a write operation quality parameter that affects the quality of the write operation during the write operation;
- performing the write operation;
- enabling an update function in connection with performing the write operation, wherein the update function is operable to update a refresh monitor as a function of the write operation and the write operation quality parameter;
- and
- refreshing data stored in the refresh zone of the disk in response to the refresh monitor.
Dependencies are inferred from the claim text.