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Chapter 1: Introduction
NOTE:
There are two values set for the upper temperature thresholds. One is set for event
notification and the other triggering higher fan rotation speed. The preset value
for event notification can be changed using the firmware-embedded configuration
utility, while the fan speed trigger is not a user’s option. Please refer to the
Generic Operation Manual for the options with event notification values.
1.3 Subsystem Monitoring
The SATA-based RAID subsystems come with a number of different monitoring
methods that provide you with continual 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 are interfaced to the RAID controller over a non-
user-serviceable I
2
C bus:
• Cooling fan modules
• PSUs
• Temperature sensors
1.3.2 LED Indicators
The following active components come with LEDs to indicate the status of the
individual components:
• RAID controller
• LCD panel
• Cooling fan module
• PSU module
• BBU module
• Drive trays
1.3.3 Firmware and RAIDWatch GUI
Firmware: The firmware is pre-installed software that is used to configure the
subsystem. The firmware can be accessed either through the LCD keypad panel or a
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Subsystem Monitoring