Filter
Top Products
Chapter 3: Subsystem Monitoring
3.2.5 BBU Module LED
The BBU module has an LED on its faceplate. (See Figure 3-5) The
function is the same as the similar LED on the controller module. The LED
is off when the BBU is functioning normally and is able to sustain the cache
memory. The LED flashes to indicate the BBU is charging. If the LED is
illuminating amber, the BBU may have lost its ability to hold electrical
charge. You should then contact your vendor to verify the problem.
Figure 3-5: BBU Module LED
3.2.6 PSU LEDs
Each PSU comes with a single LED at the back (see Figure 3-6), located
close to the power switch that turns on the subsystem. This LED indicates
the operational status of the PSU module. Please refer to the PSU LED
definitions shown in Table 3-6.
Figure 3-6: PSU Module LED
Color Status
Steadily
Blinking
Green
The power supply has not been turned on. The PSU
module LED will blink when the subsystem is
connected to a power source but not yet turned on.
Static Green
The PSU is operating normally and experiencing no
problem.
Static Red
The PSU has failed and is unable to provide power to
the subsystem.
OFF
The PSU is not turned on and the power cord is
disconnected.
Table 3-6: PSU Module LED Definitions
Status-indicating LEDs
3-7