Users Guide

A–Troubleshooting
Troubleshooting with a Diagnostic Port (D_Port)
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Figure A-2. Fibre Channel Troubleshooting Diagram (2 of 2)
Troubleshooting with a Diagnostic Port (D_Port)
Use the D_Port (diagnostic port) feature on the QLogic 2700 Series Adapters to
identify and isolate link failures resulting from faulty modules (link, cable, or SFP)
by running diagnostics over a Fibre Channel link.
 The D_Port feature is supported on Windows, Linux, and ESXi.
 The D_Port feature is not supported on the QME2742-DEL adapter.
 D_Port can be run only in dynamic mode; it does not support static mode.
 D_Port requires a Fibre Channel Adapter that is linked to a Brocade or Cisco
Fibre Channel 16G or 32G switch, and the supported Brocade or Cisco 16G
or 32G Fibre Channel switch firmware.
Configure the diagnostic D_Port on the switch to dynamically allow a port to enter
D_Port mode when a D_Port is configured on the switch end, and then return to
operational mode when the test is completed. Also configure the switch to start
and stop the diagnostic test on the adapter port. See the associated switch
documentation for details.
No
Yes
Yes
No
No
Yes
3
Adapter can log
into fabric and
name server?
Verify that cable is connected
and link lights are lit
Cable is
connected and
link lights lit?
Troubleshoot
physical
connecƟon
Are opƟcs
QLogic?
Fibre Channel
switch set for
auto-negoƟaƟon?
Contact
Technical
Support
2
Yes
No
Replace opƟcs with
QLogic opƟcs and
return to “Start”
Check auto-negoƟaƟon
on Fibre Channel
CoŶĮgure
Fibre Channel
switch for auto-
negoƟaƟon and
return to “Start”