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SentinelRAID 170 Installation and Hardware Reference Manual
1-10 SR Controller Monitoring
1.6.2 Cooling Requirements
Proper SR controller cooling is required to ensure that the temperature of the critical
controller board components does not exceed the operational temperature range. The
main components on the controller board that can overheat are:
ASIC 133
CPU
SCSI Chip(s)
The temperature of these items cannot exceed 80°C. Of the three items listed, the CPU
will heat up the most. To pre-empt overheating of the CPU, a heat sink has been mounted
on top of the CPU. The heat sink is separated from the CPU with thermal grease.
Prior to installing and powering on the SR controller, it is imperative that you ensure that
there is sufficient cooling of the controller.
1.7. SR Controller Monitoring
The SR controller comes with a number of different monitoring methods that enable you
to constantly be updated on the status of the controller and the storage array to which it is
connected.
1.7.1 I
2
C Bus
The I
2
C bus allows for the status monitoring of a number of different devices like power
supplies and cooling fans.
1.7.2 LED Indicators
The LCD front panel has three LED status indicators that show that the power is on,
when there is activity on the I/O channels, and when an error message appears on the
LCD screen itself.
1.7.3 Firmware (FW) and RAIDWatch GUI
Firmware: The firmware is pre-installed software used to configure the controller. The
FW can be accessed through either the front panel LCD module or a terminal emulation
program that is installed on an external computer connected to the host.
RAIDWatch: RAIDWatch is a premier web-based graphics user interface (GUI) that can
be installed on a remote computer and accessed via the web.