Dual channel HDD systems and methods
AssigneeMarvell World Trade Ltd.
InventorSon Hong Ho
Life of this patent
Estimating the term…
Abstract
A hard disk drive system includes a first channel module and a second channel module. The first channel module is configured to receive a first data from or transfer the first data to a first amplifier module of a hard disk assembly when reading from or writing to a first surface of a disk of the hard disk assembly. The second channel module is configured to receive a second data from or transfer the second data to a second amplifier module of the hard disk assembly when reading or writing to a second surface of the disk while the first channel module receives the first data from or transfers the first data to the first amplifier module.
Claims18
A hard disk drive system comprising:
- a first channel module configured to receive a first data from or transfer the first data to a first amplifier module of a hard disk assembly when reading from or writing to a first surface of a disk of the hard disk assembly, wherein the first channel module is configured to write a first portion of a first sector on the first surface of the disk;
- and
- a second channel module configured to receive a second data from or transfer the second data to a second amplifier module of the hard disk assembly when reading or writing to a second surface of the disk while the first channel module receives the first data from or transfers the first data to the first amplifier module, wherein the second channel module is configured to write a second portion of the first sector on the second surface of the disk, and wherein the second portion is different than the first portion, and
- wherein, when the first portion of the first sector written on the first surface of the disk is defective, the first channel module is configured to recover the first portion of the first sector on the first surface of the disk based on the second portion of the first sector written on the second surface of the disk.
A method of operating a hard disk drive system, the method comprising
- receiving first data from or transferring the first data to a first amplifier module of a hard disk assembly via a first channel module when reading from or writing to a first surface of a disk of the hard disk assembly;
- writing a first portion of a first sector on the first surface of the disk via the first channel module;
- receiving second data from or transferring the second data to a second amplifier module of the hard disk assembly via a second channel module when reading or writing to a second surface of the disk while receiving the first data from or transferring the first data to the first amplifier module via the first channel module;
- writing a second portion of the first sector on the second surface of the disk via the second channel module, and wherein the second portion is different than the first portion;
- and
- when the first portion of the first sector written on the first surface of the disk is defective, recovering the first portion of the first sector written on the first surface of the disk via the first channel module based on the second portion of the first sector written on the second surface of the disk.
Dependencies are inferred from the claim text.