Shock; Vibration - Seagate ST9500421AS Product Manual

2.10.5

Shock

All shock specifications assume that the drive is mounted securely with the input shock applied at the drive
mounting screws. Shock may be applied in the X, Y or Z axis.
Note. Additional shock protection is provided by the Free Fall Protection feature on ST9500426ASG,
ST9320426ASG, ST9250464ASG and ST9160418ASG models. See Section 2.13.1 for additional
information about this feature.
2.10.5.1 Operating shock
These drives comply with the performance levels specified in this document when subjected to a maximum
operating shock of 350 Gs based on half-sine shock pulses of 2 msec.
2.10.5.2 Nonoperating shock
The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 800 Gs based on a nonrepetitive half-sine shock pulse
of 2 msec duration.
The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 1,000 Gs based on a nonrepetitive half-sine shock
pulse of 1 msec duration.
The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 600 Gs based on a nonrepetitive half-sine shock pulse
of 0.5 msec duration.
2.10.6

Vibration

All vibration specifications assume that the drive is mounted securely with the input vibration applied at the
drive mounting screws. Vibration may be applied in the X, Y or Z axis.
2.10.6.1 Operating vibration
The maximum vibration levels that the drive may experience while meeting the performance standards speci-
fied in this document are specified below.
5–500 Hz
1.0 Gs (0 to peak). Max displacement may apply below 10 Hz.
2.10.6.2 Nonoperating vibration
The maximum nonoperating vibration levels that the drive may experience without incurring physical damage or degrada-
tion in performance when subsequently put into operation are specified below
5–500 Hz 5 Gs (0 to peak). Max displacement may apply below 22 Hz.
Momentus 7200 FDE.2 SATA Product Manual, Rev. A
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