Fujitsu MHS2020AT, Product Manual

Page: 36 / 254

Device Configuration
2-2 C141-E171-03EN
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.
MHS Series
Figure 2.1 Disk drive outerview
(1) Disk
The outer diameter of the disk is 65 mm. The inner diameter is 20 mm. The
number of disks used varies with the model, as described below.
MHS2060AT: 2 disks MHS2040AT: 2 disks
MHS2030AT: 1 disk MHS2020AT: 1 disk
(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.
Figure 2.2 illustrates the configuration of the disks and heads of each model. In
the disk surface, servo information necessary for controlling positioning and
read/write and user data are written. Numerals 0 to 3 indicate read/write heads.