G11B15/46

Double bend VCM yoke structure

The present disclosure generally relates to a voice coil motor (VCM) yoke for a data storage device. The VCM yoke has a unitary body turned back on itself at opposite ends to form a “C” shape. The unitary body is electrically conductive. The body has a substantially flat inner surface upon which the coil is disposed. The unitary body also has a substantially flat top and a substantially flat bottom surface. A coil is disposed within the turns of the unitary body. The VCM yoke can be coupled to an actuator block using one or more fastening mechanisms that extend through openings in the VCM yoke.

INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD
20220148620 · 2022-05-12 · ·

An information processing apparatus includes a memory, and a processor coupled to the memory and the processor configured to obtain requests for reading objects that exist in a plurality of wraps in different running directions on a tape of a tape storage, calculate an integrated speed for each of a plurality of orders of reading the objects based on a distance between the objects and a running speed of the tape between the objects, and select, from among the plurality of orders, an order that maximizes the integrated speed.

INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD
20220148620 · 2022-05-12 · ·

An information processing apparatus includes a memory, and a processor coupled to the memory and the processor configured to obtain requests for reading objects that exist in a plurality of wraps in different running directions on a tape of a tape storage, calculate an integrated speed for each of a plurality of orders of reading the objects based on a distance between the objects and a running speed of the tape between the objects, and select, from among the plurality of orders, an order that maximizes the integrated speed.

Information processing apparatus and information processing method
11538497 · 2022-12-27 · ·

An information processing apparatus includes a memory, and a processor coupled to the memory and the processor configured to obtain requests for reading objects that exist in a plurality of wraps in different running directions on a tape of a tape storage, calculate an integrated speed for each of a plurality of orders of reading the objects based on a distance between the objects and a running speed of the tape between the objects, and select, from among the plurality of orders, an order that maximizes the integrated speed.

Information processing apparatus and information processing method
11538497 · 2022-12-27 · ·

An information processing apparatus includes a memory, and a processor coupled to the memory and the processor configured to obtain requests for reading objects that exist in a plurality of wraps in different running directions on a tape of a tape storage, calculate an integrated speed for each of a plurality of orders of reading the objects based on a distance between the objects and a running speed of the tape between the objects, and select, from among the plurality of orders, an order that maximizes the integrated speed.

MAGNETIC TAPE DEVICE, METHOD OF INSPECTING MAGNETIC TAPE, AND NON-TRANSITORY COMPUTER READABLE MEDIUM
20210304794 · 2021-09-30 · ·

A magnetic tape device (100) includes: a winding reel (101) winding a magnetic tape (201); a drive head (103) performing writing information onto the magnetic tape (201) and/or reading the information recorded on the magnetic tape (201); an image sensor (104) picking up an image of a surface of the magnetic tape (201); and a control unit (105) performing image processing on the image picked up the image sensor (104) and determining presence/absence of an abnormality on the surface of the magnetic tape (201), in which the control unit (105) adjusts, in accordance with at least either one of a type of the drive head (103) and a recording density of the magnetic tape (201), a winding speed at which the magnetic tape (201) is wound by the winding reel (101) when the image sensor (104) picks up the image of the surface of the magnetic tape (201).

Modifying seek operations mid-seek

Illustrative systems and methods disclosed herein may change or modify a seek during mid-seek for various reasons and may set seek speeds for various seeks to less than the maximum possible seek speed to, for example, facilitate seek target change or modifications mid-seek. For instance, the seek speeds for lower priority commands or commands at risk for deprioritization may be set to speeds less than the maximum possible seek speed.

Tunnel magnetoresistive sensor with adjacent gap having chromium alloy seed layer and refractory material layer

In one general approach, an apparatus includes a sensor having an active tunnel magnetoresistive region, magnetic shields flanking the active tunnel magnetoresistive region, and gaps between the active tunnel magnetoresistive region and the magnetic shields. The active tunnel magnetoresistive region includes a free layer, a tunnel barrier layer and a reference layer. At least one of the gaps includes a seed layer of a chromium alloy and an electrically conductive layer having a refractory material formed on the seed layer. The seed layer in this configuration is more resistant to corrosion than elemental chromium when used in a magnetic recording head and/or in a structure exposed to even trace amounts of fluorine.

Rewinder tape drives

A computer-implemented method includes instructing performance of a data operation on a magnetic recording tape using a primary drive, wherein the primary drive rewinds the magnetic recording tape onto a spool at a first tension. The method also includes instructing transfer of the magnetic recording tape to a rewinder drive after performance of the data operation and instructing the rewinder drive to perform a low-tension rewind operation. The low-tension rewind operation includes unspooling the magnetic recording tape from the spool and rewinding the magnetic recording tape onto the spool at a second tension lower than the first tension.

TUNNEL MAGNETORESISTIVE SENSOR WITH ALLOY SEED LAYER
20200273491 · 2020-08-27 ·

In one general approach, an apparatus includes a sensor having an active tunnel magnetoresistive region, magnetic shields flanking the active tunnel magnetoresistive region, and gaps between the active tunnel magnetoresistive region and the magnetic shields. The active tunnel magnetoresistive region includes a free layer, a tunnel barrier layer and a reference layer. At least one of the gaps includes a seed layer of a chromium alloy and an electrically conductive layer having a refractory material formed on the seed layer. The seed layer in this configuration is more resistant to corrosion than elemental chromium when used in a magnetic recording head and/or in a structure exposed to even trace amounts of fluorine.