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host port behavior on va7400

vladimir_1
Frequent Advisor

host port behavior on va7400

After controller replacement armdsp shows port hardware path as unknown and ioscan shows it as no_hdw. The old controller was put back and port hardware path appeared again. Do anyone know where this setting is stored and should it go from one controller to another during controller replacement?

Thnx
7 REPLIES
Marko Möbius
Occasional Advisor

Re: host port behavior on va7400

do you have wwn-based zoning in your san? then you must change that to your new controller's wwn.
Jan de Vries
Advisor

Re: host port behavior on va7400

Did you try to use the command fcmsutil replace_dsk? The new controller has a different WWN and you might need to tell this to the hba.

Regards,
Arend
James A. Donovan
Honored Contributor

Re: host port behavior on va7400

After replacing the controller, you MUST run:

/opt/fcms/bin/fcmsutil /dev/tdX replace_dsk 0xYYYYYY

where tdX is the fibre adapter attached to the replaced controller, and 0xYYYYY is the remote N_Port_ID of the replaced controller. You should be able to find this number in your syslog.log file as a message should have been written there after the new controller was installed.
Remember, wherever you go, there you are...
vladimir_1
Frequent Advisor

Re: host port behavior on va7400

Sorry, forgot to mention that connection goes via switch with no zoning and ports are set in point-to-point fabric mode. So fcmsutil will hardly help.
vladimir_1
Frequent Advisor

Re: host port behavior on va7400

Actually my initial question was about host port behavior setting. Should it go from remaining controller to replacement controller?

TIA
Arend Lensen
Trusted Contributor

Re: host port behavior on va7400

All settings will remain the same when the controller is exchanged.
Ricardo Rocha
Valued Contributor

Re: host port behavior on va7400

Fabric doesn't mean that you don't have to run replace_dsk. If you td is A5158A, you'll need to use replace_dsk with the controller ID (108 or 110).

If you need any help with replace_dsk, just say.

Bye
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