IBM DS8800, Introduction And Planning Manual, Page: 188 / 256

v In storage
Powered on:
Plan for the DS8000 operating ranges and recommended operating points when the
storage unit is on.
Table 60 provides the operating ranges for your storage unit when the power is on.
Table 60. Operating extremes with the power on
Altitude 0 - 2133 m (0 - 7000 ft)
Dry bulb temperature 16 - 32°C (60 - 90°F)
Relative humidity 20 - 80%
Wet bulb temperature (maximum) 23°C (73°F)
Table 61 provides the optimum operating points for your storage unit with the
power on.
Table 61. Optimum operating points with the power on
Temperature 22°C (72°F)
Relative humidity 45%
Table 62 provides the operating ranges for a storage unit with the power on.
Table 62. Optimum operating ranges with the power on
Temperature 16 - 32°C (60 - 90°F)
Relative humidity 40 - 50%
Powered off:
Plan for the required DS8000 temperature and humidity ranges when the storage
unit is off.
Table 63 provides the temperatures and humidity requirements for your storage
unit when the power is off.
Table 63. Temperatures and humidity with the power off
Temperature 10 - 43°C (50 - 110°F)
Relative humidity 8 - 80%
Wet bulb temperature (maximum) 27°C (80°F)
In storage:
Plan for the required DS8000 temperature and humidity ranges when the storage
unit is in storage.
Table 64 on page 167 provides the temperatures and humidity requirements for
storing your storage unit.
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Introduction and Planning Guide