Owners Manual

Table 18. High ambient temperature shutdown (continued)

Ambient temperature Hardware fault Consequence

to less than 45° C (113° F) , the

system powers on..

Any Three hottest drives have average temperature of

50° C (122° F)

System shuts down after five

minute timer expires.

Any Two fans fault System shuts down after five

minute timer expires.

Operating limits

Table 19. Operating limits

Description Limit

Temperature 5°C through 35°C normal, 35°C through

40°C for 10% of the time

Humidity -12°C DP and 8% to 85% RH (non-

condensing)

Temperature Gradient (disk) 20°C/hr

Altitude Compensation Normal: Lower temp 1°C per 300 M above

950 M

Improbable: Lower temp 1°C per 175 M

above 950 M

Shipping and storage requirements

NOTE:

Systems and components must not experience changes in temperature and humidity that are likely to cause

condensation to form on or in that system or component. Do not exceed the shipping and storage temperature gradient of

45°F/hr (25°C/hr).

Table 20. Shipping and storage requirements

Requirement Description

Ambient temperature -40° F to 149°F (-40°C to 65°C)

Temperature gradient 45°F/hr (25°C/hr)

Relative humidity 10% to 90% noncondensing

Elevation -50 to 35,000 ft (-16 to 10,600 m)

Storage time (unpowered) Recommendation Do not exceed 6 consecutive months of

unpowered storage.

Base enclosure airflow

The base enclosure uses an adaptive cooling algorithm that increases or decreases fan speed as the unit senses changes to the

external ambient temperature. Exhaust increases with ambient temperature and fan speed, and is roughly linear within

recommended operating parameters. Note that the information in the table below is typical, and was measured without cabinet

front/rear doors that would potentially reduce front-to-back air flow.

Technical specifications