Brocade Communications Systems 825 Anleitung zur Fehlerbehebung PDF herunterladen (Seite 65)

Brocade Adapters Troubleshooting Guide 41

53-1002145-01

FCoE and Fibre Channel problems

This section provides resolution of the following:

• Fibre Channel problems on HBAs and Fabric Adapter ports configured in HBA mode.

• FCoE problems on CNAs and Fabric Adapter ports configured in CNA mode.

Loss of sync and loss of signal errors in port statistics

If the port is having loss of synchronization and signal errors, refer to the following descriptions of

possible causes and recommended actions to help resolve the problem. Learn more about

displaying port statistics in “Port statistics” on page 82.

Possible Cause: Possible physical link problem.

Action: Check authentication settings on the switch and adapter. For the switch, execute the

authutil --show Fabric Fabric OS command. For the adapter, execute the BCU auth --show command

(refer to “Authentication settings” on page 105).

Action: Use the BCU auth --show <port> command on the adapter and Fabric OS authutil --show

command on the switch.

Action: Check the shared secret configuration on the attached switch and on the adapter. For the

switch, execute the secAuthSecret Fabric OS command. For the adapter, execute the auth –-secret

BCU command. Refer to “Authentication settings” on page 105 for details on using the auth-secret

command.

Fabric authentication failures

If failures in the authentication process between the adapter in host system and the connected

switch occur, refer to the following descriptions of possible causes and recommended actions to

help resolve the problem.

Possible Cause: Authenticating configuration is incorrect.

Action: Check authentication settings on the switch and adapter. For the switch, execute the

authutil --show Fabric OS command. For the adapter, execute the BCU auth --show command (refer

to “Authentication settings” on page 105).

Action: Check the shared secret configuration on the attached switch and adapter. For the switch,

execute the secAuthSecret Fabric OS command. For the adapter, execute the auth –-secret BCU

command. Refer to “Authentication settings” on page 105 for details on using the auth-secret

command.

Adapter is not showing in the fabric

If the adapter does not appear as a Fibre Channel device in the fabric, refer to the following

descriptions of the possible cause and recommended action to help resolve the problem.

Possible Cause: There is a problem in the fabric or a protocol issue between the adapter and a

fabric.

Action: Check the fabric statistics. Refer to “Fabric statistics” on page 76 for methods to display

fabric statistics for the adapter.

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Brocade Communications Systems 825 Anleitung zur Fehlerbehebung Seite 65