Specifications

Chapter 3 Subsystem Monitoring
LED Name Color Status
BBU Status
Amber
ON indicates the BBU has failed and cannot sustain the
cache memory.
OFF indicates the BBU is sufficiently charged and can
sustain cached data.
FLASHING indicates the BBU is charging.
Table 3-6: Drive Tray LED Definitions
3.2.7 PSU Module LED
The PSU module has one (1) LED located just above the power switch and just below the
retention screw to indicate the operational status of the PSU module. (See Figure 3-6)
Please refer to Table 3-7 for PSU LED definitions.
Figure 3-6: PSU Module Rear LED
Color Status
Static Green The PSU is operating normally and experiencing no problems
Static Red The PSU has failed and is unable to continue providing power to the
subsystem.
Blinking
Green
The PSU is not turned on. This LED blinks green when the power
cable has been plugged in but the power switch is not turned on.
OFF The PSU is not turned on, no power is being supplied to the PSU or
the power plug is not connected.
Table 3-7: PSU Module LED Definitions
Status-indicating LEDs 3-7