From: Sengor <>
Date: Wed Feb 11 2009 - 19:05:25 EST
Thanks to all who replied (Dennis, Phillip).

Official answer from both Emulex and Qlogic is:

Only targets (Arrays/VTLs/Filers) follow the "same Node WWN on all public FC
ports", initiators (HBA cards) don't follow this convention/rule.

So having different Node WWNs on the physically same HBA is "ok".

---------- Forwarded message ----------
From: Sengor <>
Date: Mon, Jan 5, 2009 at 6:53 PM
Subject: WWNNs and WWPNs
To: sunmanagers <>

Hi colleagues,

Let's assume I've got a single HBA card with 2 fibre ports on it (in
this case Emulex card). From what I've understood World Wide Port
Names on such a card should be different and World Wide Node Name
shold be the same according to the theoretical rules.

# luxadm -e dump_map /devices/pci@15d,600000/SUNW,emlxs@1/fp@0,0:devctl
Pos Port_ID Hard_Addr Port WWN Node WWN Type
3 1f0027 0 10000000c95d21eb 20000000c95d21eb 0x1f (Unknown Type,Host
Bus Adapter)

# luxadm -e dump_map /devices/pci@15d,600000/SUNW,emlxs@1,1/fp@0,0:devctl
Pos Port_ID Hard_Addr Port WWN Node WWN Type
3 b0055 0 10000000c95d21ec 20000000c95d21ec 0x1f (Unknown Type,Host Bus

Does anyone know why the WWN Node numbers are different on the
physically same card?
Is this a Solaris driver issue or the manufacturer has not followed
the theoretical standard of WWN Node being the same on each port of
the same physical card?


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Received on Wed Feb 11 19:05:40 2009

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