Fujitsu MHY2040BS, Руководство по эксплуатации/техническому обслуживанию

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1.1 Features
(2) Operating temperature
The disk drive can be used within the temperature range (5
°
C to 60
°
C at DE
surface). (For details of the reliability for each temperature range, refer to the
Section 1.7, "Reliability".)
(3) Low noise and vibration
In Ready status (while the device is waiting for any commands), the Sound Power
level of the disk drives in idle mode is 2.0B [MHY2100BS, MHY2080BS,
MHY2060BS, MHY2040BS] / 2.4B [MHY2200BS, MHY2160BS,
MHY2120BS]. The Sound Pressure level is 22dB [MHY2100BS, MHY2080BS,
MHY2060BS, MHY2040BS] / 28dB [MHY2200BS, MHY2160BS,
MHY2120BS], as measured 0.3 m from the drive in Idle mode.
(4) High resistance against shock
The Load/Unload mechanism is highly resistant against non-operation shock up to
8820 m/s
2
(900G).
(5) Improved resistance against rotational vibration (option)
The disk drive has built-in functions designed to minimize the adverse effects of
rotational vibration to prevent performance degradation. (Rotational vibration can
occur when multiple drive mechanisms are mounted in a single chassis.)
1.1.3 Interface
(1) Connection to SATA interface
The disk drive has built-in controllers compatible with the SATA interface.
(2) Data buffer
The disk drive uses the data buffer to transfer data between the host and the disk
media.
In combination with the read-ahead cache system described in item (3) and the
write cache described in item (6), the buffer contributes to efficient I/O processing.
(3) Read-ahead cache system
After the execution of a disk read command, the disk drive automatically reads the
subsequent data block and writes it to the data buffer (read ahead operation). This
cache system enables fast data access. The next disk read command would normally
cause another disk access. But, if the read ahead data corresponds to the data
requested by the next read command, the data in the buffer can be transferred instead.
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