Multiple-actuator drive that provides duplication using multiple volumes
AssigneeSeagate Technology LLC
InventorVijay Nanjunda Swamy
Life of this patent
Estimating the term…
Abstract
A first drive volume formed on a disk within a drive enclosure. The first drive volume is read from and written to by a first head that is moved by a first actuator, A second drive volume is formed on the one or more disks. The second volume is read from and written to by a second head that is moved via a second actuator within the drive enclosure. The second actuator is separate and independent from the first actuator. Data of the first drive volume is duplicated onto the second drive volume, Background validation operations are performed on the second drive volume instead of the first volume.
Claims20
A data storage drive comprising:
- interface circuitry configured to communicate with:
- first and second actuators enclosed within the drive that operate independently;
- and
- first and second read/write heads enclosed within the drive and respectively moved over one or more disks by the first and second actuators, the one or more disks driven by a single spindle motor enclosed within the drive;
- and
- a controller coupled to the interface circuitry and operable to:
- form a first drive volume of the one or more disks that is read from and written to by the first read/write head;
- form a second drive volume of the one or more disks that that is read from and written to by the second read/write head, the second volume duplicating data of the first drive volume;
- and
- perform background validation operations on the second drive volume and not the first drive volume.
A method comprising:
- forming a first drive volume of one or more disks within a drive enclosure of a hard disk drive, the one or more disks driven by a single spindle motor being enclosed within the drive enclosure, the first drive volume being read from and written to by a first read/write head that is moved by a first actuator within the drive enclosure;
- forming a second drive volume of the one or more disks that that is read from and written to by a second read/write head that is moved via a second actuator within the drive enclosure that is separate and independent from the first actuator;
- duplicating data of the first drive volume onto the second drive volume;
- and
- performing background validation operations on the second drive volume instead of the first volume.
A hard disk drive comprising:
- one or more magnetic disks in a drive enclosure that are driven by a single spindle motor enclosed within the drive enclosure;
- first and second actuators within the drive enclosure that independently move respective first and second heads over the one or more magnetic disks;
- and
- a controller coupled to the first and second actuators and first and second heads and operable to:
- define a first volume on a first portion of the one or more disks, the first portion being read from and written to by the first read/write head;
- define a second volume on a second portion of the one or more disks, the second portion being read from and written to by the second read/write head;
- in response to data being written to the first volume, duplicate the data to the second drive volume;
- and
- perform background validation operations on the second volume instead of the first volume.
Dependencies are inferred from the claim text.