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9176/D173 D
ISK SUBSYSTEM - SITE PREPARATION GUIDE 25
S
IXTH EDITION
9170 Disk Array and D173 Disk Controller Array
Table 11 lists the environmental requirements for the 9170/D173 drive trays.
Table 11 Drive Tray Environmental Requirements
Condition Range Requirement
Altitude
Below Sea Level Above Sea Level
Operating 30.5 m (100 ft.) 3,000 m (9,840 ft.)
Storage 30.5 m (100 ft.) 3,000 m (9,840 ft.)
Transit 30.5 m (100 ft.) 12,000 m (40,000 ft.)
Temperature
Operating
1
10
º
C to 40
º
C (50
º
F to 104
º
F)
Storage -10
º
C to 50
º
C (14
º
F to 122
º
F)
Transit -40
º
C to 60
º
C (-40
º
F to 140
º
F)
Maximum
Temperature Change
Allowed
Operating
10
º
C (18
º
F) per hour
Storage
15
º
C (27
º
F) per hour
Transit
20
º
C (36
º
F) per hour
Relative Humidity
(no condensation)
Operating 20% to 80%
Storage 10% to 90%
Transit 5% to 95%
Maximum Dew Point
26
º
C (79
º
F)
Max. Humidity Gradient 10% per hour
Heat Dissipation
2
1200 Btu/hr (based on 0.495 kVA or 350.0 W power consumption)
Sound
Power 6.5 bels
Pressure 65 dBA
1
If operating the 9176 at altitudes between 1,000 m and 3,000 m (3,280 ft. and 9,850 ft.), lower theenvironmental temperature by 1.7
º
C (3.3
º
F) for
every 1,000 m (3,280 ft.) above sea level.
2
kVA, W, and Btu calculations for typical tray configurations: 10 drive modules, two DCPSs, and two channel card modules.