Galaxy Raid GHDX4 SAS<>SAS / SATA 12Bay
Installation / Hardware Reference Manual
1-10
1.2.7 Cooling Modules
Cooling Modules
Two (2) cooling modules are implemented. The blowers within
operate at different fan speeds. When the system operates normally,
the cooling fans operate at the lower speed. If a major component
fails or when one of the temperature thresholds is violated, the
blowers automatically raise its rotation speed.
1.3 System Monitoring
The enclosure comes with a number of different monitoring methods
that provide you with continual updates on the status of the system
and the individual components. The following monitoring features are
included:
1.3.1 I
2
C bus
The following system elements are interfaced to the RAID controller
over a non-user-serviceable I
2
C bus:
Power supplies and cooling modules
Module presence detection circuits
Temperature sensors (for detecting the temperature on the
backplane board and controller board)
1.3.2 LED Indicators
The following active components come with LEDs to indicate the
status of individual components. Please refer to Chapter 4 for more
information on system monitoring.
˙
LCD keypad panel: three (3) status LEDs
