Overview of rear panel LEDs
29
System airflow
The system must be operated with low pressure rear exhaust installation. Back pressure created by rack doors and
obstacles is not to exceed 5 pascals (0.5mm water gauge). The cooling system provides sufficient capacity to ensure that
maximum temperatures are not exceeded.
IMPORTANT:
The environment in which the enclosure operates must be dust-free to ensure adequate airflow.
IOM
This section describes the IOM used in Exos E 4U106 12Gb/s storage enclosures.
Figure 17 IOM
Each IOM maintains Vital Product Data (VPD) in EEPROM device and are interconnected by I2C buses on the midplane
creating an interlink between the two modules. An enclosure system fault occurs when incompatible configurations are
detected.
Refer to FRU Replacement Time Limit (
) for maximum allowable time to replace FRUs. See section
for replacement instructions.
NOTE:
For a description of IOM LEDs, see
