Brocade Communications Systems 415 - Manual (Page 68)

54 Brocade Adapters Administrator’s Guide
53-1001583-01
Diagnostics using the BCU
5
diag commands
The diag commands shown in Table 10 monitor hardware components and can be performed while
the system is running (they are non-disruptive). Refer to “diag” 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 Table 11 . Refer to “fcdiag” 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.