G11B5/024

Information processing apparatus, method of controlling the same, program and storage medium

An information processing apparatus, for recording data in a magnetic storage medium by a shingled magnetic recording, and a method of controlling this, when a rewrite of data stored in the magnetic storage medium is instructed, copy data of a zone in which rewrite target data is stored other than the rewrite target data into a vacant zone of the magnetic storage medium; store, to the vacant zone into which the data is copied, the rewrite target data, delete by overwriting an entirety of the zone in which the rewrite target data is stored with predetermined data, and register the overwritten zone as an unused area.

Partitioned data-based TDS compensation using joint temporary encoding and environmental controls

A method for providing enhanced readability of data written to a magnetic tape, includes the steps of (i) writing data to a first tape partition using a tape drive, the data being written under a first dimensional stability condition; (ii) monitoring an ambient dimensional stability condition with a condition monitor to determine if the ambient dimensional stability condition has moved at least a predetermined threshold value from the first dimensional stability condition toward a preferred dimensional stability condition; and (iii) replicating the data to a second tape partition with a data replicator when it has been determined that the ambient dimensional stability condition has moved at least the predetermined threshold value from the first dimensional stability condition toward the preferred dimensional stability condition.

Partitioned data-based TDS compensation using joint temporary encoding and environmental controls

A method for providing enhanced readability of data written to a magnetic tape, includes the steps of (i) writing data to a first tape partition using a tape drive, the data being written under a first dimensional stability condition; (ii) monitoring an ambient dimensional stability condition with a condition monitor to determine if the ambient dimensional stability condition has moved at least a predetermined threshold value from the first dimensional stability condition toward a preferred dimensional stability condition; and (iii) replicating the data to a second tape partition with a data replicator when it has been determined that the ambient dimensional stability condition has moved at least the predetermined threshold value from the first dimensional stability condition toward the preferred dimensional stability condition.

Hard Drive Dismantling System
20170297062 · 2017-10-19 · ·

A system and method for reclaiming select components containing rare earth metals of electronic media electronic storage devices such as hard disk drives, solid state drives and hybrid hard drives and destroying the data containing components thereof comprising first devices to loosen various components of the storage device, the components including the components containing the rare earth elements and the data containing portions. Second devices are provided for removing components from the storage device. A holding chassis receives the storage device, and moves the storage device for engagement with the first and second devices. A section is provided for destroying the data containing portion of the electric storage device when it is removed from the storage device.

Data removal drill device and method to use
11257513 · 2022-02-22 ·

This unique and novel invention provides a custom data removal jig used to reliably, efficiently, and cost-effectively remove data from a handheld mobile computing device (“PC device”). The data removal jig comprises an open-box structure which provides one or more alignment features to assist with properly inserting the PC device within the data removal jig. Additionally, a pilot hole is provided by the securement structure. Once the PC device is inserted into the data removal jig, the pilot hole is substantially centered above the integrated flash memory chip on the particular PC device's motherboard which the data removal jig has been customized to accommodate. A power drill is used to precisely penetrate the PC device via the pilot hole and substantially isolate the damage to the integrated flash memory chip. Additionally, the securement structure also provides one or more braces that assist with restraining movement of the securement structure during the data removal process.

Contact induced data storage device destruction
09779773 · 2017-10-03 · ·

A data storage device may be destroyed by suspending a transducing head above a data storage medium prior to inducing contact of the transducing head with a first layer of the data storage medium in response to a signal from a controller. Deflection of the transducing head can then be increased to penetrate to a destroy depth in a second layer of the data storage medium that is maintained while the data storage medium spins. The controller may then issue at least one data read command to access data from the data storage medium and when a data read error is received, the data storage medium and transducing head can be verified as destroyed and incapable of accessing data previously written to the data storage medium.

Perpendicular magnetic recording writer having improved performance and wide area track erasure reliability

A magnetic writer includes a high magnetic moment write pole layer on a main write pole, the write pole layer including a proximal end recessed from the air bearing surface, and a Wide Area Track Erasure (WATER) reservoir recessed from the proximal end of the write pole layer and transverse to a longitudinal direction of the main write pole. The write pole layer may be conformal in shape to, but have smaller dimensions relative to, the main write pole, such that a distance between their outer surfaces is generally constant in a flare region. The WATER reservoir width, in a cross-track direction, may be greater than or equal to the maximum width of the main write pole.

Perpendicular magnetic recording writer having improved performance and wide area track erasure reliability

A magnetic writer includes a high magnetic moment write pole layer on a main write pole, the write pole layer including a proximal end recessed from the air bearing surface, and a Wide Area Track Erasure (WATER) reservoir recessed from the proximal end of the write pole layer and transverse to a longitudinal direction of the main write pole. The write pole layer may be conformal in shape to, but have smaller dimensions relative to, the main write pole, such that a distance between their outer surfaces is generally constant in a flare region. The WATER reservoir width, in a cross-track direction, may be greater than or equal to the maximum width of the main write pole.

Resistive temperature sensors for improved asperity, head-media spacing, and/or head-media contact detection

A sensor supported by a head transducer has a temperature coefficient of resistance (TCR) and a sensor resistance. The sensor operates at a temperature above ambient and is responsive to changes in sensor-medium spacing. Conductive contacts connected to the sensor have a contact resistance and a cross-sectional area adjacent to the sensor larger than that of the sensor, such that the contact resistance is small relative to the sensor resistance and negligibly contributes to a signal generated by the sensor. A multiplicity of head transducers each support a TCR sensor and a power source can supply bias power to each sensor of each head to maintain each sensor at a fixed temperature above an ambient temperature in the presence of heat transfer changes impacting the sensors. A TCR sensor of a head transducer can include a track-oriented TCR sensor wire for sensing one or both of asperities of the medium.

Resistive temperature sensors for improved asperity, head-media spacing, and/or head-media contact detection

A sensor supported by a head transducer has a temperature coefficient of resistance (TCR) and a sensor resistance. The sensor operates at a temperature above ambient and is responsive to changes in sensor-medium spacing. Conductive contacts connected to the sensor have a contact resistance and a cross-sectional area adjacent to the sensor larger than that of the sensor, such that the contact resistance is small relative to the sensor resistance and negligibly contributes to a signal generated by the sensor. A multiplicity of head transducers each support a TCR sensor and a power source can supply bias power to each sensor of each head to maintain each sensor at a fixed temperature above an ambient temperature in the presence of heat transfer changes impacting the sensors. A TCR sensor of a head transducer can include a track-oriented TCR sensor wire for sensing one or both of asperities of the medium.