Dell Brocade 6505 Brocade 6505 Hardware Reference Manual - Page 34

POST, Boot, Interpreting POST results

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3 Interpreting POST results 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. • Initializes hardware. • Runs diagnostic tests on several functions, including circuitry, port functionality, memory, statistics counters, and serialization. Boot In addition to POST, boot includes the following tasks after POST is complete: • Performs universal port configuration. • Initializes links. • Analyzes fabric. If any ports are connected to other switches, the switch participates in a fabric configuration. • Obtains a domain ID and assigns port addresses. • Constructs unicast routing tables. • Enables normal port operation. Interpreting POST results POST is a system check that is performed each time the switch is powered on, rebooted, or reset. During POST, the LEDs flash either amber or green. Any errors that occur during POST are listed in the error log. Complete the following steps to determine whether POST completed successfully and whether any errors were detected. 1. Verify that the switch LEDs indicate that all components are healthy. See Table 1 and Table 2 for descriptions and interpretations of LED patterns. If one or more LEDs do not display a healthy state, verify that the LEDs on the switch are not set to "beacon" by entering the switchShow command to detect if beaconing is active. 2. Verify that the switch prompt displays on the terminal of a computer workstation connected to the switch. If there is no switch prompt when POST completes, press Enter. If the switch prompt still does not display, try opening a Telnet session or accessing the switch through another management tool. If this is not successful, the switch did not successfully complete POST. Contact your switch supplier for repair. 3. Review the switch error log for errors. Any errors detected during POST are written to the error log, accessible through the errShow command. 22 Brocade 6505 Hardware Reference Manual 53-1002449-01

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22
Brocade 6505 Hardware Reference Manual
53-1002449-01
Interpreting POST results
3
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.
•
Initializes hardware.
•
Runs diagnostic tests on several functions, including circuitry, port functionality, memory,
statistics counters, and serialization.
Boot
In addition to POST, boot includes the following tasks after POST is complete:
•
Performs universal port configuration.
•
Initializes links.
•
Analyzes fabric. If any ports are connected to other switches, the switch participates in a fabric
configuration.
•
Obtains a domain ID and assigns port addresses.
•
Constructs unicast routing tables.
•
Enables normal port operation.
Interpreting POST results
POST is a system check that is performed each time the switch is powered on, rebooted, or reset.
During POST, the LEDs flash either amber or green. Any errors that occur during POST are listed in
the error log.
Complete the following steps to determine whether POST completed successfully and whether any
errors were detected.
1.
Verify that the switch LEDs indicate that all components are healthy.
See
Table 1
and
Table 2
for descriptions and interpretations of LED patterns. If one or more
LEDs do not display a healthy state, verify that the LEDs on the switch are not set to “beacon”
by entering the
switchShow
command to detect if beaconing is active.
2.
Verify that the switch prompt displays on the terminal of a computer workstation connected to
the switch.
If there is no switch prompt when POST completes, press
Enter
. If the switch prompt still does
not display, try opening a Telnet session or accessing the switch through another management
tool. If this is not successful, the switch did not successfully complete POST. Contact your
switch supplier for repair.
3.
Review the switch error log for errors. Any errors detected during POST are written to the error
log, accessible through the
errShow
command.