A storage device controller is configured to select one of multiple written track widths for a storage location based on a write attribute of data to be recorded at the storage location. According to one implementation, the storage device controller is further configured to select a power level for a heat-assisted magnetic recording (HAMR) device based on the write attribute.

According to one embodiment, a method includes receiving a write request and determining a first portion of information associated with the write request. The method additionally includes determining a first location on a first disk to write the first portion of information and, based on the determined first location on the first disk, determining a second location on a second disk to write the first portion of information. The method further includes writing the first portion of the information to the first location on the first disk. The first location comprises an outer track of the first disk. The method further includes writing the first portion of the information to the second location on the second disk, the second location comprising an inner track of the second disk.

According to one embodiment, a drive-implemented method includes, in a first mode of operation, processing data using only transducers of subarrays positioned on opposite sides of an inner transducer in an array of transducers, and processing data using only a portion of the transducers in each of the subarrays in a second mode of operation, wherein the inner transducer is inactive in the second mode of operation.

In one embodiment, a drive-implemented method includes determining, by a tape drive, that a magnetic recording tape is compatible with a first format, the tape drive having an array of transducers including an inner transducer and subarrays of the transducers positioned on opposite sides of the inner transducer, reading from or writing to the magnetic recording tape, by the tape drive, using the array of transducers in a first mode of operation corresponding to the first format, and processing data, by the tape drive, using only the transducers in the subarrays in the first mode of operation.

A drive-implemented method includes performing an operation on a storage medium using an array of 2N+1 transducers using transducers on only one side of a centerline of the array in a first mode of operation.

An apparatus according to one embodiment includes an array of transducers, where the array of transducers includes at least one contiguous group of transducers in a number specified in a format and at least two servo readers, where the servo readers are symmetrically positioned about the contiguous group of transducers and the servo readers are asymmetrically positioned relative to a centerline of the array of transducers.

An apparatus according to one embodiment includes an array of 2N+1 transducers, and a controller electrically coupled only to transducers in odd positions in the array. An apparatus according to another embodiment includes an array of 2N+1 transducers, where at least one of the transducers within the array is configured as a servo reader, a controller electrically coupled only to transducers in odd positions in the array, and a drive mechanism for passing a magnetic medium over the array.

According to one embodiment, an information processing device includes an acquisition part, and a processor. The acquisition part is configured to acquire a reproduction signal obtained from a recording part. The recording part includes a recording medium. The reproduction signal includes a first signal corresponding to information recorded in the recording medium. The processor is configured to derive a first output and a second output. The first output is obtained by first information being processed by a first processing model. The first information includes the first signal. The second output is obtained by the first information being processed by a second processing model. The processor is configured to output a result of processing the first information based on a third output. The third output is obtained based on the first output, the second output, and the first information.

According to one embodiment, a drive-implemented method includes, in a first mode of operation, processing data using only transducers of subarrays positioned on opposite sides of an inner transducer in an array of transducers, and processing data using only a portion of the transducers in each of the subarrays in a second mode of operation, wherein the inner transducer is inactive in the second mode of operation.

A drive-implemented method includes performing an operation on a storage medium using an array of 2N+1 transducers using transducers on only one side of a centerline of the array in a first mode of operation.