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10. Check the battery indicator lights, as shown in Figure 38.
Figure 38. Battery CRU indicator lights
11. After your battery has completed the self test, reset the battery installation date
Storage server fan
The storage server fan is a single, removable unit that contains two cooling fans
and temperature monitoring circuitry. The storage server fan plugs directly into a
slot on the front of the FAStT900 Storage Server, to the left of the controllers (see
Figure 40 on page 46). Five indicator lights provide overall system status
information (see Figure 41 on page 47). The dual fans in the storage server fan unit
provide a redundant cooling system to both controller CRUs. If one fan fails, the
other continues to operate, providing sufficient air circulation to prevent the
controllers from overheating until you can replace the entire storage server fan.
To prevent cooling problems, the FAStT900 Storage Server must have proper air
circulation throughout the chassis. Cooling problems include any malfunctions or
obstructions that impede air flow and cause one or more components in the
FAStT900 Storage Server to overheat. Make sure that the ambient air temperature
around the FAStT900 Storage Server is within the environmental requirements. To
boost air circulation, the FAStT900 Storage Server chassis has air vents along its
top and sides. These vents serve as air intake and exhaust passages. Always keep
vents clean and free of obstructions (Refer to the IBM FAStT900 Fibre Channel
Storage Server Installation Guide for operating specifications).
Figure 39 on page 45 shows the FAStT900 Storage Server air flow. Make sure your
installation site allows adequate ventilation to the FAStT900 Storage Server during
operation.
44
IBM TotalStorageFAStT900 Fibre Channel Storage Server: User's Guide
Note: If the Full Charge-A and the Full Charge-B indicator lights are blinking,
the battery is in the process of charging.
using the storage-management software. The software continues to issue
battery-related errors if the installation date is not reset.
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