Humidity Specifications - HP StorageWorks XP10000 Disk Array Site Prep Manual

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.
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
42 Site requirements
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