Brocade VDX 6710-54 Hardware Reference Manual - Manual (Page 43)

Brocade VDX 6710-54 Hardware Reference Manual 25
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POST and boot specifications
4
Table 4 describes the LEDs on the non-port side of the switches.
POST and boot specifications
When the switch is turned on or rebooted, the switch performs a power-on, self-test (POST). Total
boot time with POST can be several minutes. POST can be omitted after subsequent reboots by
using the fastboot command or entering the no diag post command to persistently disable POST.
For more information about these commands, refer to the Brocade Network OS Command
Reference.
POST
The success or failure results of the diagnostic tests that run during POST can be monitored
through LED activity, the error log, or the command line interface.
POST includes the following tasks:
• Conducts preliminary POST diagnostics.
• Initializes the operating system.
TABLE 4 Non-port side LED patterns during normal operation
LED name LED color Status of hardware Recommended action
Power supply and
fan assembly
status (one LED
[green] per power
supply and fan
assembly) Off (no light) Assembly is not receiving power
or is turned off. Verify the assembly is on and seated
and the power cord is connected to a
functioning power source.
Steady green Assembly is operating normally. No action required.
Blinking green One of the following may have
occurred:
•
Mismatched airflow on
power supply and fan
assembly.
•
One or more of the fans in
the fan assembly has failed
or the power supply has
failed.
•
The power cord has been
unplugged.
•
The power supply and fan
assembly was disabled by
the user.
•
The power supply power
switch has been turned off
or the unit has been
unplugged.
Take one of the following actions:
•
Replace power supply and fan
assembly with a power supply and
fan assembly that has correct
airflow direction. Replace if
necessary.
•
Replace the power supply and fan
assembly.
•
Check the power plug.
•
Verify that the power supply and
fan assembly is enabled.
•
Check the power switch and plug.