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CONSTELLATION ES.3 SAS PRODUCT MANUAL, REV. B 34
6.5.4 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 14, and in accordance with the restrictions of Section 10.3.
6.5.4.1 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) 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 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 300 Gs 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 200 Gs 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).