Installation guide

LEDs on the nonport side of the Brocade 7800
The nonport side of the Brocade 7800 has the following LEDs:
• One power supply LED next to the AC power switch on each fan and power supply assembly. See
Nonport side of the Brocade 7800 on page 15 for a diagram of the non-port side of the switch.
The following table describes the LEDs on the nonport side of the Extension Switch.
Nonport Side LED patterns during normal operation TABLE 6
LED Name LED Color Status of Hardware Recommended Action
Power Supply/ Fan
Status
No light Power supply is not seated
correctly.
Verify that the power supply is seated
correctly.
Steady green System is on and power
supplies are functioning
properly.
No action required.
Flashing green Fault has occurred in the
FRU.
Try the following:
• Check the power cable connection.
• Verify that the power supply is powered
on.
• Run psShow and fanShow commands
to determine the source of the fault.
• Replace the FRU.
POST and boot specifications
The Brocade 7800 runs POST by default each time it is powered on; it typically requires from 1 to 3
minutes to boot and complete POST.
POST can be skipped after subsequent reboots by entering the fastBoot command. For more
information about this command, see the Fabric OS Command Reference.
POST
The success/fail results of the diagnostic tests that run during POST can be monitored through LED
activity, the error log, or a command line interface.
POST includes the following tasks:
1. Conduct preliminary POST diagnostics
2. Initialize the operating system
3. Initialize hardware
4. Run diagnostic tests on several functions, including circuitry, port functionality, memory, statistics
counters, and serialization
LEDs on the nonport side of the Brocade 7800
Brocade 7800 Extension Switch Hardware Installation Guide 37
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