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6.5.2
Humidity
The values below assume that no condensation on the drive occurs. Maximum wet bulb temperature is 84.2°F (29°C).
a. Operating
5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour.
b. Non-operating
5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour.
6.5.3
Effective altitude (sea level)
a. Operating
–1000 to +10,000 feet (–304.8 to +3048 meters)
b. Non-operating
–1000 to +40,000 feet (–304.8 to +12,192 meters)
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 3,
and in accordance with the restrictions of Section 9.3.
6.5.4.1
Shock
a. Operating
The drive, as installed for normal operation, shall operate error free while subjected to intermittent shock not exceeding:
•
70 Gs (read) at a maximum duration of 2ms (half sinewave)
•
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. 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 the three values below, shall not exhibit device damage or performance degradation.
•
150 Gs at a maximum duration of 10ms (half sinewave)
•
300 Gs at a maximum duration of 2ms (half sinewave)
•
200 Gs at a maximum duration of 0.5ms (half sinewave)
Shock may be applied in the X, Y, or Z axis.
c. Packaged
Seagate finished drive bulk packs are designed and tested to meet or exceed applicable ISTA and ASTM standards. Volume finished drives will
be shipped from Seagate factories on pallets to minimize freight costs and ease material handling. Seagate finished drive bulk packs may be
shipped individually. For less than full shipments, instructions are printed on the bulk pack carton for minimum drive quantities and proper
drive placement.
Seagate Enterprise Performance - 3.5 HDD SAS Product Manual, Rev. B
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