An apparatus, according to one embodiment, includes a write transducer having: a bottom yoke, a top yoke, a nonmagnetic write gap positioned between the top and bottom yokes, a bottom pole extending from the bottom yoke toward the write gap, and a top pole extending from the top yoke toward the write gap. A width of a media facing side of the bottom pole is about the same as a width of a media facing side of the top pole. The media facing side of the bottom pole is aligned with the media facing side of the top pole along a thickness direction. A method, according to one embodiment, includes performing bidirectional writing to a magnetic recording tape using a write transducer as described above.

According to one embodiment, a manufacturing method of a magnetic disk device including a magnetic disk that stores information, and two or more control devices is provided. The method includes acquiring power consumption of each of a plurality of control devices to be able to be included in the magnetic disk device; and selecting a combination of two or more control devices to reduce variation in total power consumption, on the basis of the acquired power consumption.

An apparatus, according to one embodiment, includes at least two write transducers positioned a predefined distance apart in a first direction. Outer surfaces of pole tips of the write transducers are substantially coplanar. Write gaps are defined between the pole tips of the write transducers. Planes of the write gaps are oriented substantially perpendicular to the first direction. Coils are positioned to create flux in a magnetic yoke of each write transducer upon energization thereof. The apparatus also includes a mechanism for assisting in orienting a module having two or more sensors of interest relative to the write gaps.

An apparatus, according to one embodiment, includes at least two write transducers positioned a predefined distance apart in a first direction. Outer surfaces of pole tips of the write transducers are substantially coplanar. Write gaps are defined between the pole tips of the write transducers. Planes of the write gaps are oriented substantially perpendicular to the first direction. Coils are positioned to create flux in a magnetic yoke of each write transducer upon energization thereof. The apparatus also includes a mechanism for assisting in orienting a module having two or more sensors of interest relative to the write gaps.

According to one embodiment, a magnetic disk device includes a disk, a head including a first write head and a second write head configured to write data to the disk and a read head configured to read data from the disk, and a controller configured to write write data to a first area of the disk with the first write head and to overwrite the write data written with the first write head in the first area with the second write head.

In one embodiment, an apparatus includes a module having a substrate and a closure, an array of transducers in a thin film structure on the substrate, the array being positioned along a tape bearing surface of the module, and a heating element positioned in the thin film structure and recessed from the tape bearing surface, and a controller electrically coupled to the heating element. The controller is configured to apply a current pulse of size, shape and duration sufficient to induce a permanent expansion of the array of transducers.

In one embodiment, an apparatus includes a module having a substrate and a closure, an array of transducers in a thin film structure on the substrate, the array being positioned along a tape bearing surface of the module, and a heating element positioned in the thin film structure and recessed from the tape bearing surface, and a controller electrically coupled to the heating element. The controller is configured to apply a current pulse of size, shape and duration sufficient to induce a permanent expansion of the array of transducers.

According to one embodiment, a magnetic recording/reproducing device includes a plurality of magnetic recording medium each including a recording surface, a plurality of assisted magnetic recording heads each provided with the recording surface in order to perform assisted recording, and an assisting amount adjustment part connected to the assisted magnetic recording heads in order to adjust an assisting amount of each assisted magnetic recording head corresponding to a recording capacity of the recording surface.

According to one embodiment, a magnetic recording/reproducing device includes a plurality of magnetic recording medium each including a recording surface, a plurality of assisted magnetic recording heads each provided with the recording surface in order to perform assisted recording, and an assisting amount adjustment part connected to the assisted magnetic recording heads in order to adjust an assisting amount of each assisted magnetic recording head corresponding to a recording capacity of the recording surface.

Provided are a tape head module, tape drive, and method for moving a tape medium over a tape head having a recessed portion to provide air bearing between a tape medium and a tape bearing surface of the module. The tape head includes a tape bearing surface, an array of transducers, including read and/or write transducers, on the tape bearing surface, and a recessed portion formed on the tape bearing surface, wherein the array of transducers is located on the tape bearing surface between the recessed portion and an end of the module to perform read and/or write operations with respect to the tape medium.