A magnetic disk device includes a casing having a box-like base that has a bottom wall and a cover that has a first surface facing the bottom wall, a magnetic disk provided in the casing, a head configured to write data to the magnetic disk and to read data from the magnetic disk, an actuator assembly that supports the head in the casing, a conductive container on the first surface of the cover, and a conductive body in contact with the conductive container and the cover.

A recording tape cartridge includes a case that accommodates a reel around which a recording tape is wound and a label that is attached to a label surface formed at a wall surface of the case. The wall surface is located at a side opposite to a direction in which the case is loaded into a drive device. The label includes a first label layer that is attached to the label surface and on which individual identification information is displayed in a two-dimensional code, and a second label layer attached to the first label layer with a peelable bonding force, the second label layer being capable of covering and concealing the two-dimensional code, and the individual identification information being displayed in a barcode on the second label layer. The two-dimensional code is displayed at a central part in a longitudinal direction of the label.

A magnetic recording medium is provided and including an average thickness t.sub.T satisfies t.sub.T5.5 [m], and a dimensional change amount w in a width direction of the magnetic recording medium with respect to a tension change in a longitudinal direction of the magnetic recording medium satisfies 700 [ppm/N]w.

A cartridge includes a tape-shaped magnetic recording medium and a cartridge memory. The cartridge memory includes a communication unit that communicates with a recording/reproducing device in a state where the cartridge is loaded on the recording/reproducing device; a storage unit; and a control unit that stores information received from the recording/reproducing device through the communication unit in the storage unit, reads the information from the storage unit according to a request from the recording/reproducing device, and transmits the information to the recording/reproducing device through the communication unit. The information includes manufacturing information of the cartridge and adjustment information for adjusting a tension applied to the magnetic recording medium in a longitudinal direction thereof, and the tape-shaped magnetic recording medium has a plurality of servo bands.

A magnetic recording medium is provided and including an average thickness t.sub.T satisfies t.sub.T5.5 [m], and a dimensional change amount w in a width direction of the magnetic recording medium with respect to a tension change in a longitudinal direction of the magnetic recording medium satisfies 700 [ppm/N]w.

A recording control device, a recording control method, and a recording tape cartridge capable of estimating a lifetime of the recording tape cartridge are obtained. A recording control device reads information correlated with an error rate of reading or writing of data from or to a magnetic tape included in a recording tape cartridge, the information being recorded on a RFID tag included in the recording tape cartridge, and a measurement date of the information, and estimates a lifetime of the recording tape cartridge using the read information and the read measurement date, and the information measured at the time of using the recording tape cartridge and a measurement date.

A magnetic disk device includes a casing having a box-like base that has a bottom wall and a cover that has a first surface facing the bottom wall, a magnetic disk provided in the casing, a head configured to write data to the magnetic disk and to read data from the magnetic disk, an actuator assembly that supports the head in the casing, a conductive container on the first surface of the cover, and a conductive body in contact with the conductive container and the cover.

A method comprising: determining, by a tape library, respective tape densities supported by each of a plurality of tape drives and respective tape densities indicated for each of a plurality of tape cartridges; receiving, by the tape library, a command to load a given one of the tape cartridges into a given one of the tape drives; determining, by the tape library, that the indicated tape density for the given tape cartridge matches a tape density supported by the given tape drive; and in response to the determination that the tape densities match, configuring, by the tape library, the given tape drive to initialize the given tape cartridge to the tape density indicated for the given tape cartridge.

A data storage cartridge according to one embodiment comprises a housing configured to house a data storage medium, a sensor coupled to the housing, and a microcontroller coupled to the sensor. The microcontroller is configured to wirelessly communicate information about the sensor. Other embodiments relate to a data storage cartridge comprising a housing configured to house a data storage medium, a cartridge memory coupled to the housing, the cartridge memory having a wireless communications interface, and a microcontroller in physical communication with the cartridge memory. The microcontroller is configured to wirelessly communicate information retrieved from the cartridge memory. Additional embodiments relate to a data storage cartridge comprising a mechanical write protect mechanism coupled to the housing of the data storage cartridge, an actuator coupled to the mechanical write protect mechanism for selectively changing a state of the mechanical write protect mechanism, and a microcontroller configured to control the actuator.

A method for securing user data that is stored to a tape cartridge having a medium auxiliary memory (MAM) is described. When user data is sent to a tape library from a client, the tape library sends a request to a cloud based key management service for a data key to encrypt the user data and an encrypted data key that corresponds to the data key. The data key is used to encrypt the user data which is then stored to the tape cartridge and the encrypted data key is stored to the MAM. Upon decrypting the encrypted user data, the encrypted data key is extracted from the MAM and sent to the cloud based key management service where it is used to produce the data key from the cloud based key management service which is then sent to the tape library. When the tape library is in possession of the data key, the encrypted data in the tape cartridge can then be decrypted and sent to a requester of the user data.