APC RAID Subsystem SCSI-SATA II Specifications Page 22

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Chapter 1: Introduction
Figure 1-11: Cooling Module
1.3. Subsystem Monitoring
The 24 BAY RAID subsystem comes with several monitoring methods to give you
constant updates on the status of the system and individual components. The following
monitoring features are included in the subsystem.
1.3.1 I
2
C bus
The following subsystem elements interface to the RAID controller over a non-user-
serviceable I
2
C bus:
Disk drives (drive failure output)
PSU modules
Cooling modules
Temperature sensors
1.3.2 LED Indicators
The following active components all come with LEDs that indicate the status of the
individual component:
RAID controller (4 LEDs)
LCD keypad panel (3 LEDs)
Cooling module (2 LEDs)
PSU module (1 LED)
Subsystem Monitoring
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