Seagate Enterprise Capacity 3.5 HDD v7 SAS Product Manual, Rev. C
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6.6.4
Shock and vibration
Shock and vibration limits specified in this document are measured directly on the drive chassis. If the drive is installed in an enclosure to which the
stated shock and/or vibration criteria is applied, resonances may occur internally to the enclosure resulting in drive movement in excess of the
stated limits. If this situation is apparent, it may be necessary to modify the enclosure to minimize drive movement.
The limits of shock and vibration defined within this document are specified with the drive mounted by any of the four methods shown in Figure 4,
and in accordance with the restrictions of Section 9.3.
6.6.4.1
Shock
a. Operating—normal
The drive, as installed for normal operation, shall operate error free while subjected to intermittent shock not exceeding 70 Gs
(read) and 40 Gs (write) typical at a maximum duration of 2ms (half sinewave). Shock may be applied in the X, Y, or Z axis. Shock is
not to be repeated more than once every 2 seconds.
b. Operating—abnormal
Equipment, as installed for normal operation, does not incur physical damage while subjected to intermittent shock not
exceeding 40 Gs at a maximum duration of 11ms (half sinewave). Shock occurring at abnormal levels may promote degraded
operational performance during the abnormal shock period. Specified operational performance will continue when normal
operating shock levels resume. Shock may be applied in the X, Y, or Z axis. Shock is not to be repeated more than once every 2
seconds.
c. Non-operating
The limits of non-operating shock shall apply to all conditions of handling and transportation. This includes both isolated drives
and integrated drives.
The drive subjected to nonrepetitive shock not exceeding 80 Gs typical at a maximum duration of 11ms (half sinewave) shall not
exhibit device damage or performance degradation. Shock may be applied in the X, Y, or Z axis.
The drive subjected to nonrepetitive shock not exceeding 250 Gs typical at a maximum duration of 2ms (half sinewave) does not
exhibit device damage or performance degradation. Shock may be applied in the X, Y, or Z axis.
The drive subjected to nonrepetitive shock not exceeding 150 Gs typical at a maximum duration of 0.5ms (half sinewave) does
not exhibit device damage or performance degradation. Shock may be applied in the X, Y, or Z axis.
d. Packaged
Disk drives shipped as loose load (not palletized) general freight will be packaged to withstand drops from heights as defined in
the table below. For additional details refer to Seagate specifications 30190-001 (under 100 lbs/45 kg) or 30191-001 (over 100 lbs/
45 Kg).
