Table 54. Temperatures and humidity with the power off
Measurement Value
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 temperature and humidity ranges when the storage system is in storage.
Table 55 on page 100 provides the temperatures and humidity requirements for storing your storage
system.
Table 55. Temperatures and humidity while in storage
Measurement Value
Temperature 1 - 60°C (34 - 140°F)
Relative humidity 5 - 80%
Wet bulb temperature (maximum) 29°C (84°F)
Corrosive gasses and particulates
Plan for air quality that meets standards for corrosive gases and particulates.
The storage system is designed to operate reliably in a general business-class environment. A general
business-class environment is one that has automated 24x7x365 temperature and humidity controls and
also operates with G1 specications for corrosive gases and P1 specications for particulates.
Operating vibration and shock requirements
The vibration levels that are designed for the storage system comply with class V1 requirements included
in the product classes for vibration.
The storage system is designed to operate under the vibration V1 levels that are described in Table 56 on
page 100. Additional information includes random vibration PSD prole breakpoints and operational
shock levels. See Table 57 on page 100 and Table 58 on page 101.
Table 56. Vibration levels
Class grms g Peak Sine
1, 2
V1L 0.10 0.06 @ 50 and 60 Hz
Notes:
1. All values in this table are in g
2
/Hz
2. g is the peak g level of an approximate half-sine pulse.
Table 57. Random vibration PSD prole breakpoints
Class 5 Hz 17 Hz 45 Hz 48 Hz 62 Hz 65 Hz 150 Hz 200 Hz 500 Hz
V1L 2.0x10
-
7
2.2x10
-5
2.2x10
-5
2.2x10
-5
2.2x10
-5
2.2x10
-5
2.2x10
-5
2.2x10
-5
2.2x10
-5
Note: All values in this table are in g
2
/Hz.
100 IBM DS8900F: DS8900F Introduction and Planning Guide
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