Overtemperature Condition And Power Supply Shutdown; Fan And Communications And Power Supply Fault Indicators; Storage Server Fan Indicator - IBM TotalStorage DS4500 User Manual
Fibre channel storage server
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Also See for TotalStorage DS4500:
- Update manual (37 pages) ,
- Hardware maintenance manual (184 pages) ,
- Cabling manual (12 pages)
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Overtemperature condition and power supply shutdown
If the fan and communications module fails or is unable to maintain an internal
temperature below 70° C (158° F), one or both of the power supplies in the DS4500
Storage Server might shut down (see Figure 30). If both power supplies shut down,
the DS4500 Storage Server is not operational.
Figure 30. Fan and communications and power supply fault indicators
The storage-management software causes the fan and communications module
fault indicator and storage server fan indicator to light before the temperature has
risen sufficiently to shut down the power supplies. The storage server fan indicator
light, shown in Figure 31, is lit when the DS4500 Storage Server temperature
exceeds 45° C (113° F). The DS4500 Storage Server shuts down if the temperature
rises to 70° C (158° F). If both power supplies shut down, the fault indicator cannot
light.
Figure 31. Storage server fan indicator
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Chapter 2. Operating the DS4500 Storage Server
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