Fujitsu MHV2060BH Manuel d'utilisateur télécharger pdf (Page 42)

Device Configuration

2-2 C141-E224

2.1 Device Configuration

Figure 2.1 shows the disk drive. The disk drive consists of a disk enclosure (DE),

read/write preamplifier, and controller PCA. The disk enclosure contains the disk

media, heads, spindle motors, actuators, and a circulating air filter.

Figure 2.1 Disk drive outerview

(1) Disk

The outer diameter of the disk is 65 mm. The inner diameter is 20 mm.

(2) Head

The heads are of the load/unload (L/UL) type. The head unloads the disk out of

while the disk is not rotating and loads on the disk when the disk starts.

(3) Spindle motor

The disks are rotated by a direct drive Sensor-less DC motor.

(4) Actuator

The actuator uses a revolving voice coil motor (VCM) structure which consumes

low power and generates very little heat. The head assembly at the edge of the

actuator arm is controlled and positioned by feedback of the servo information

read by the read/write head. If the power is not on or if the spindle motor is

stopped, the head assembly stays on the ramp out of the disk and is fixed by a

mechanical lock.

(5) Air circulation system

The disk enclosure (DE) is sealed to prevent dust and dirt from entering. The

disk enclosure features a closed loop air circulation system that relies on the

blower effect of the rotating disk. This system continuously circulates the air

through the circulation filter to maintain the cleanliness of the air within the disk

enclosure.

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Fujitsu MHV2060BH Manuel d'utilisateur Page 42