Humidity Specifications; Mechanical Vibration Specifications - HP StorageWorks XP10000 - Disk Array Manual

Temperature range type
Nonoperating temperature range
Shipping and storage temperature (product packed in
factory packing)
Temperature shock immunity (maximum rate of
temperature change)

Humidity specifications

Maintain proper humidity levels. High humidity levels cause galvanic actions to occur between some
dissimilar metals. This eventually causes a high resistance between connections, leading to equipment
failure.
Low humidity contributes to undesirably high levels of electrostatic charges. This increases the
electrostatic discharge (ESD) voltage potential. ESD can cause component damage during servicing
operations.
Low humidity levels are often the result of the facility heating system and occur during the cold season.
Most heating systems provide air with a low humidity level, unless the system has a built-in humidifier.
You should not see any condensation in or around the disk array under any conditions. There is no
procedure for recovery from moisture condensation.
Table 7 Humidity specifications
Humidity range type
Operating humidity range at 22 degrees C (71 degrees F)
Nonoperating humidity range
Shipping and storage humidity range (product packed in factory
packing)
Operating maximum wet bulb temperature
Nonoperating maximum wet bulb temperature
Shipping and storage maximum wet bulb temperature

Mechanical vibration specifications

Continuous vibration can cause a slow degradation of mechanical parts and, when severe, can cause
data errors in disk drives. Mechanical connections such as printed circuit assembly (PCA) conductors,
cable connectors, and processor backplane wiring can also be affected by vibrations. Vibration
32 Site requirements for the XP10000 disk array
Range
–10 to +43 degrees C
14 to 109 degrees F
–25 to +60 degrees C
–13 to +140 degrees F
10 degrees C per hour
18 degrees F per hour
Noncondensing relative humidity (RH)
20% to 80%
8% to 90%
5% to 95%
26 degrees C
79 degrees F
27 degrees C
81 degrees F
29 degrees C
84 degrees F