Variable data interleave sizes on hard drives
AssigneeAvago Technologies International Sales Pte. Limited
InventorShaohua Yang
Life of this patent
Estimating the term…
Abstract
Improved tools and techniques for configuring a write head of a hard disk drive and/or for writing data to a hard disk drive. The write surface of a disk in the hard disk drive can be divided into multiple logical zones, with different interleave sizes for each zone. This scheme can meet latency requirements for regions closer to the center of the write surface while providing for better error rate performance in regions further away from the center of the write surface.
Claims20
A device, comprising:
- circuitry to determine a first interleave size for writing data to a first zone on a hard disk drive;
- circuitry to determine least one additional interleave size for writing data to at least one additional zone on the hard disk drive, the at least one additional interleave size comprising a second interleave size different from the first interleave size, and the at least one additional zone comprising a second zone different than the first zone;
- circuitry to configure a write head of the hard disk drive to write first data to the first zone, the first data being interleaved according to the first interleave size;
- and
- circuitry to configure the write head of the hard disk drive to write second data to the second zone, the second data being interleaved according to the second interleave size.
A device comprising a hard disk drive, the hard disk drive configured to:
- determine a first interleave size for writing data to a first zone on the hard disk drive;
- determine at least one additional interleave size for writing data to at least one additional zone on the hard disk drive, the at least one additional interleave 5 size comprising a second interleave size different from the first interleave size, and the at least one additional zone comprising a second zone different than the first zone;
- configure a write head of the hard disk drive to write first data to the first zone, the first data being interleaved according to the first interleave size;
- and
- configure the write head of the hard disk drive to write second data to the second zone, the second data being interleaved according to the second interleave size.
A device comprising logic, the logic comprising:
- logic to determine a first interleave size for writing data to a first zone on a hard disk drive;
- logic to determine least one additional interleave size for writing data to at least one additional zone on the hard disk drive, the at least one additional interleave size comprising a second interleave size different from the first interleave size, and the at least one additional zone comprising a second zone different than the first zone;
- logic to configure a write head of the hard disk drive to write first data to the first zone, the first data being interleaved according to the first interleave size;
- and
- logic to configure the write head of the hard disk drive to write second data to the second zone, the second data being interleaved according to the second interleave size.
Dependencies are inferred from the claim text.