Drive Acoustics; Electromagnetic Susceptibility - Seagate Medalist 10240 Product Manual

Medalist 10240, 7630, 5120, 2510 Product Manual, Rev. B
1.8.6.2 Nonoperating vibration
The following table lists the maximum nonoperating vibration that the
drive may experience without incurring physical damage or degradation
in performance when subsequently put into operation.
5–22 Hz 0.08-inch displacement (peak to peak)
22–350 Hz 5.0 Gs acceleration (zero to peak)

1.9 Drive acoustics

Drive acoustics are measured as overall A-weighted acoustic sound
power levels (no pure tones). All measurements are generally consistent
with ISO document 7779. Sound power measurements are taken under
essentially free-field conditions over a reflecting plane. For all tests, the
drive is oriented with the cover facing upward
For the seeking mode, the drive is placed in seek only. The number of
seeks per second is defined by the following equation:
Number of seeks per second = 0.4 / (average latency + average access time)
Mode
Idle
Read/Write

1.10 Electromagnetic susceptibility

The drive operates without errors when subjected to the following:
Radiated noise
Electrostatic discharge*
Magnetic field strength
* Electrostatic discharge susceptibility is measured with the drive
mounted in a representative computer system (mounted to a ground
plane with earth grounding). Discharges are applied to the bezel or
other external surfaces on the ground plane.
Typical sound Maximum sound
power (bels) power (bels)
3.5 3.9
4.0 4.3
3 volt/meter, 30 Hz to 500 MHz
10 KVolts
5 Gauss
13
.