According to one embodiment, a magnetic disk device includes a magnetic disk, a spindle motor, a magnetic head, a ramp load mechanism, a filter, and a control section. The control section rotates the spindle motor at a second rotating speed for a given period of time at startup of the device, and then loads the magnetic head from the ramp load mechanism to a prescribed position on the magnetic disk. The second rotating speed is higher than a first rotating speed at which the spindle motor is rotated at the magnetic head reads/writes data from/to the magnetic disk.

A removable disk clamp assembly for mounting disk media on a motor-driven spindle of a magnetic read-write device includes a disk clamp and a mechanism for generating a predetermined force to press the disk media to a flange of the spindle such that the predetermined force can be repeatedly overcome by an applied counterforce to remove the disk clamp from engagement with a hub of the spindle. Such a mechanism may include a spring-loaded removable disk clamp assembly or a magnetic removable disk clamp assembly, and whereby a vacuum-driven chuck may be employed for disk and clamp handling purposes, all of which are suitable for implementation and use in a read-write device configured for use in an archival data storage system library such as in a cleanroom storage system.

A removable disk clamp assembly for mounting disk media on a motor-driven spindle of a magnetic read-write device includes a disk clamp and a mechanism for generating a predetermined force to press the disk media to a flange of the spindle such that the predetermined force can be repeatedly overcome by an applied counterforce to remove the disk clamp from engagement with a hub of the spindle. Such a mechanism may include a spring-loaded removable disk clamp assembly or a magnetic removable disk clamp assembly, and whereby a vacuum-driven chuck may be employed for disk and clamp handling purposes, all of which are suitable for implementation and use in a read-write device configured for use in an archival data storage system library such as in a cleanroom storage system.

According to one embodiment, a magnetic disk device includes a magnetic disk, a spindle motor, a magnetic head, a ramp load mechanism, a filter, and a control section. The control section rotates the spindle motor at a second rotating speed for a given period of time at startup of the device, and then loads the magnetic head from the ramp load mechanism to a prescribed position on the magnetic disk. The second rotating speed is higher than a first rotating speed at which the spindle motor is rotated at the magnetic head reads/writes data from/to the magnetic disk.

According to one embodiment, a disk device includes a recording medium, a magnetic head, a ramp, and an actuator. The recording medium has a recording surface and is rotatable around a first rotation axis. The actuator includes a first portion extending so as to be separated from a second rotation axis and separated from the recording surface as the distance from the second rotation axis increases, holds the magnetic head, and is rotatable around the second rotation axis. A first support is provided on the ramp, extends around the second rotation axis, and can support the first portion so that the magnetic head is separated from the recording surface. A second support is provided on the ramp, is located between the first rotation axis and the first support, is separated from the second rotation axis farther than the first support, and can support the first portion.

A data storage device includes a base, a shaft that extends perpendicular from the base, and a head stack assembly (HSA) having a first end to which a head is coupled and a second end that is movably mounted on the shaft. The data storage device also includes either a first actuator assembly or a second actuator assembly. The first actuator assembly includes a first coil-permanent magnet assembly that rotatably moves the HSA about the shaft, and a second coil-permanent magnet assembly that serves as a first elevator to linearly move the HSA along the shaft. The second actuator assembly includes a third coil-permanent magnet assembly that rotatably moves the HSA about the shaft, and a second elevator that linearly moves the HSA along the shaft and also moves a data storage device ramp in unison with the HSA.

According to one embodiment, a suspension assembly includes a support plate and a lift tab extending in a first direction. The lift tab has an arc-shaped cross section, and includes an arc-shaped outer circumferential surface, an arc-shaped inner circumferential surface, a first upper end surface located between one arc ends of the outer and inner circumferential surfaces, and a second upper end surface located between other arc ends of the outer and inner circumferential surfaces of the inner circumferential surface, and a first angle made between the outer circumferential surface and the first upper end surface is less than a second angle made between the inner circumferential surface and the first upper end surface.

According to one embodiment, a disk device includes a recording medium, a magnetic head, a ramp, and an actuator. The recording medium has a recording surface and is rotatable around a first rotation axis. The actuator includes a first portion extending so as to be separated from a second rotation axis and separated from the recording surface as the distance from the second rotation axis increases, holds the magnetic head, and is rotatable around the second rotation axis. A first support is provided on the ramp, extends around the second rotation axis, and can support the first portion so that the magnetic head is separated from the recording surface. A second support is provided on the ramp, is located between the first rotation axis and the first support, is separated from the second rotation axis farther than the first support, and can support the first portion.

A data storage device includes a ramp configured to support at least one head in the data storage device, and a movement mechanism coupled to the ramp and configured to move the ramp from a first position to a second position by at least one of expansion or contraction of at least a portion of the movement mechanism. The data storage device further includes a ramp motion control module operably coupled to the movement mechanism. The ramp motion control module is configured to provide the movement mechanism with a first control signal that causes the movement mechanism to move the ramp from the first position to the second position. The data storage device additionally includes a latch configured to hold the ramp.

A data storage device includes a ramp that supports at least one head, and a retraction mechanism that moves the ramp from a non-retracted position to a retracted position. The movement of the ramp is enabled by at least one of expansion or contraction of at least a portion of the retraction mechanism. The data storage device further includes a ramp retraction control module operably coupled to the retraction mechanism. The ramp retraction control module provides the retraction mechanism with a first control signal that causes the retraction mechanism to move the ramp from the non-retracted position to the retracted position.