Brocade Communications Systems 804 Manual De Usuario

Diagnostics using the BCU

5

diag commands

The diag commands shown in 

 monitor hardware components and can be performed while 

the system is running (they are non-disruptive). Refer to 

 on page 137 for command details. 

NOTE
The sfpshow and beacon commands are not applicable for Brocade 804 mezzanine cards.

fcdiag commands

Fibre Channel diagnostics include the tests shown in 

. Refer to 

 on page 141 for 

details about this command.

TABLE 10

Fibre Channel diag commands

Command

Description

beacon

Blinks the appropriate port LED for physical identification. Beaconing can 
occur at the port or the link level.

End-to-end (E2E) beaconing is a software feature that can be enabled on
Brocade 8 Gbps HBAs to allow the local HBA to flash (beacon) and also
cause the connected Fibre Channel switch port to uniquely beacon. Refer
to the Brocade Adapters Installation and Reference Guide for details on
E2E beaconing patterns.

loopback

Tests the data path from the IOC to the desired network loopback port 
(internal, serdes, external) and back. This is an offline diagnostic test.

memtest

Tests the adapter’s memory blocks.

pciloopback

Checks the communications path between the host and the IO Controller 
(IOC).

queuetest

Tests the CPE/RME queue.

sfpshow

Displays small form factor pluggable (SFP) information.

tempshow

Displays the temperature of the adapter.

TABLE 11

Fibre Channel diagnostic tests

Command

Description

fcping

Determines the basic connectivity between the Fibre Channel 
network points and monitors and measures network latency.

fctraceroute

Reports on a SAN path, including node hops and latency data.

fcecho

Sends an FC Echo Extended Link Services (ELS) request to a remote 
port.

linkbeacon

Blinks the LED light of the remote port of the link.

scsitest

Tests the SCSI components.