Galaxy GHDX4 RAID iSCSI-SAS/SATA InstaHardware Reference Manual
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temperature thresholds is violated, the cooling fans automatically
raise its rotation speed.
Location of cooling modules (16 bay on the left / 24 bay on the right)
Subsystem Monitoring
The iSCSI RAID subsystem comes with a number of different
monitoring methods that provide you with continual updates on the
operating statuses of the subsystem and individual components. The
following monitoring features are included:
I2C bus
The following subsystem elements are interfaced to the RAID
controller over a non-user-serviceable I
2
C bus:
Cooling modules
Module presence detection circuits
Temperature sensors (for detecting the temperature on the
backplane board and controller board)
LED Indicators
The following components come with LEDs to indicate the operating
statuses of individual components:
RAID controller (controller status LED)
BBU module (status indicated by CBM LED on the rear
controller faceplate)
Cooling modules (16 bay models: LEDs on PSU faceplates /
24 bay model: LEDs on cooling modules)
PSU modules (1 LED on each module indicating PSU status)
