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1–General Description
CPU Blades
1-10 59229-05 A
CPU Blade LEDs
The CPU blade LEDs indicated the operating condition of the CPU blade. The
CPU Good LED, CPU Heartbeat LED, and CPU Primary LED are replicated on
the Maintenance Panel. The CPU blade LEDs are as follows:
CPU Good LED (Green)–This LED illuminates to indicate that the CPU
blade is operational. In maintenance mode, this LED is off.
CPU Fault LED (Amber)–This LED illuminates to indicate that the CPU
blade has a fatal error. This LED and the Chassis Fault LED illuminate
together.
CPU Primary LED (Green)–This LED illuminates to indicate the
primary CPU.
CPU Beacon LED (White)–This LED illuminates in response to a command
issued from the management workstation to help locate a CPU blade.
CPU Power LED (Green)–This LED illuminates to indicate that the CPU
blade is receiving power.
CPU Heartbeat LED (Green)–This LED indicates the status of the CPU
internal switch processor and the results of the Power On Self Test (POST).
During normal operation, the Heartbeat LED blinks about once per second
to indicate that the switch passed the POST and that the internal switch
processor is running. Certain errors will cause the Heartbeat LED to blink an
error code. Refer to “Error Code Blink Patterns” on page 4-2 for error code
explanations. In maintenance mode, the Heartbeat LED illuminates
continuously.
CPU Hotswap LED (Blue)–This LED illuminates to indicate the CPU blade
insertion status. Continuous illumination indicates that I/O traffic has ceased
and the CPU blade can be removed.