Brocade Communications Systems 804 manual Diag commands, Fcdiag commands

5 Diagnostics using the BCU

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.

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.

fcdiag commands

Fibre Channel diagnostics include the tests shown in Table 11. Refer to “fcdiag” on page 141 for details about this command.

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.

54	Brocade Adapters Administrator’s Guide
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