Hard disk drive having regions corresponding to different speeds at which storage surface rotates
AssigneeHewlett Packard Enterprise Development LP
InventorsEric A. Anderson, Arif A. Merchant
Life of this patent
Estimating the term…
Abstract
A hard disk drive includes a storage surface, a motor, a read/write had, and a number of regions into which the storage surface is divisible. Data is writable to and data is readable from the storage surface. The motor is to rotate the storage surface at a variable speed. The read/write head is to write data to and read data from the storage surface while the storage surface is rotated by the motor. Each region corresponds to a different speed at which the storage surface is rotated for the read/write head to write data to and read data from the region.
Claims8
A system comprising:
- a hard disk drive comprising a storage surface divisible into a plurality of regions, each region corresponding to a different speed at which the storage surface is rotated while data is written to and read from the region;
- and,
- a computing device to write data to and read data from the regions of the storage surface of the hard disk drive,
- wherein the computing device is to variably define boundaries among the regions, such that at a first time a first region has a larger physical size than a second region, and such that at a second time the first region has a smaller physical size than the second region.
A system comprising:
- a hard disk drive comprising a storage surface divisible into a plurality of regions, each region corresponding to a different speed at which the storage surface is rotated while data is written to and read from the region;
- and,
- a computing device to write data to and read data from the regions of the storage surface of the hard disk drive,
- wherein the computing device is to sequentially number a plurality of sectors within a given region as if the given region corresponds to a slowest speed, regardless of a speed to which the given region actually corresponds,
- wherein for a particular physical size of the given region, the given region has a greater number of disk sectors that data can actually be written to and read from when the given region corresponds to a slower speed as compared to when the given region corresponds to, a faster speed,
- and wherein not all the numbered sectors of the given region are usable except when the given region corresponds to the slowest speed.
Dependencies are inferred from the claim text.