EMC DS-5100B Hardware Reference - Page 32

POST and boot specifications

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3 POST and boot specifications TABLE 1 Brocade 5100 LED Patterns During Normal Operation (Continued) LED Name LED Color Status of Hardware Recommended Action Port Status No light No signal or light carrier (media or cable) detected. Check transceiver and cable. Slow flashing green (flashing in two-second intervals) Port is online but segmented because of a loopback cable or incompatible switch connection. No action required. Fast flashing green (flashing in half-second intervals) Port is online and an internal loopback diagnostic test is running. No action required. Flickering green (steady with random flashes) Port is online and frames are flowing No action required. through the port. Steady green Port is online (connected to external No action required. device) but has no traffic. Slow flashing amber (flashing in two-second intervals) Port is disabled (because of diagnostics or the portDisable command). Verify the diagnostic tests are not running. Reenable the port using the portEnable command. Fast flashing amber (flashing in half-second intervals) Port is faulty. Check the management interface and the error log for details on the cause of status. Contact Technical Support if required. Steady amber (for more than five seconds) Port is receiving light or signal carrier No action required. at 4 Gbps; but is not yet online. POST and boot specifications When the switch is turned on or rebooted, the switch performs 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 diagDisablePost command to persistently disable POST. For more information about these commands, refer to the Fabric OS Command Reference Manual. POST The success or failure results of the diagnostic tests that run during POST can be monitored through the error log or the command line interface. POST includes the following tasks: 1. Conducts preliminary POST diagnostics. 2. Initializes the operating system. 3. Initializes hardware. 20 Brocade 5100 Hardware Reference Manual 53-1000854-02

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20
Brocade 5100 Hardware Reference Manual
53-1000854-02
POST and boot specifications
3
POST and boot specifications
When the switch is turned on or rebooted, the switch performs 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
diagDisablePost
command to persistently disable POST.
For more information about these commands, refer to the
Fabric OS Command Reference Manual
.
POST
The success or failure results of the diagnostic tests that run during POST can be monitored
through the error log or the command line interface.
POST includes the following tasks:
1.
Conducts preliminary POST diagnostics.
2.
Initializes the operating system.
3.
Initializes hardware.
Port Status
No light
No signal or light carrier (media or
cable) detected.
Check transceiver and cable.
Slow flashing
green (flashing in
two-second
intervals)
Port is online but segmented
because of a loopback cable or
incompatible switch connection.
No action required.
Fast flashing green
(flashing in
half-second
intervals)
Port is online and an internal
loopback diagnostic test is running.
No action required.
Flickering green
(steady with
random flashes)
Port is online and frames are flowing
through the port.
No action required.
Steady green
Port is online (connected to external
device) but has no traffic.
No action required.
Slow flashing
amber (flashing in
two-second
intervals)
Port is disabled (because of
diagnostics or the
portDisable
command).
Verify the diagnostic tests are not
running. Reenable the port using the
portEnable
command.
Fast flashing
amber (flashing in
half-second
intervals)
Port is faulty.
Check the management interface
and the error log for details on the
cause of status.
Contact Technical Support if
required.
Steady amber (for
more than five
seconds)
Port is receiving light or signal carrier
at 4 Gbps; but is not yet online.
No action required.
TABLE 1
Brocade 5100 LED Patterns During Normal Operation
(Continued)
LED Name
LED Color
Status of Hardware
Recommended Action