dmesg error

[Jeffe.G]

I have a WARN in the dmesg and syslog on the Superdome box, as following:
FCD: h/w path conversion failed
What reasons,How do repair it.

[Sameer_Nirmal]

The warning message maybe related to a h/w path conversion ( legacy or new path formats ) based on WWN and Lun ID of a LUN on a fibre channel path. This conversation apparently seems to have failed for some reason.

I would expect some more messages popped up before this warning. The previous messages would be useful to understand what was going on.

Was there any changes on SAN? Do you see more messages/errors before this warning?
What HP-UX version, FC HBA and FC drivers are running on the partition?

[Jeffe.G]

thank you for your reply,please refer to attatched the log file.other information is as following:

HPUXBaseOS B.11.23 HP-UX Base OS

HWEnable11i B.11.23.0712.070 Hardware Enablement Patches for HP-UX 11i v2, December 2007

QPKAPPS B.11.23.0712.070a Applications Patches for HP-UX 11i v2, December 2007
QPKBASE B.11.23.0712.070a Base Quality Pack Bundle for HP-UX 11i v2, December 2007

FibrChanl-00 B.11.23.0712 PCI FibreChannel;Supptd HW=A6795A,A5158A
FibrChanl-01 B.11.23.08.02 FibrChnl;SupptdHW=A6826A,A9782A,A9784A,AB378A,AB379A,AB465A,AD193A,AD194A,AD300A
FibrChanl-02 B.11.23.0712 PCIe FibreChannel;Supptd HW=AD299A,AD355A

[Sameer_Nirmal]

I see no relevant messages to the FCD message. It's hard to pin point to possible cause but it's interesting...

I would run following commands

# ioscan -fn
# /opt/fcms/bin/fcddiag
# /opt/fcms/bin/fcdlist

I would check if the message pops up while running "ioscan -fn" command and check any NO_HW devices in the output. I would also run the given EMS "resdata" commands to check the reported entity in the FPL.

The problem may or maynot be related to the FCD driver installed which is dated 12/07. However installing the latest FCD driver version is a good idea to take advantages of the new features and have defects free version installed. This also helps in troubleshooting.

http://docs.hp.com/en/J6374-90083/index.html