Displaying WWPN information on Power10 Systems

Back in 2019, I posted this regarding POWER9 systems and displaying WWPN information:

Displaying WWPN information on POWER9 Systems

http://gibsonnet.net/blog/cgaix/html/Displaying%20WWPN%20information%20on%20POWER9%20Systems.html

Here's a quick update for Power10. There's less steps to perform. The example below is from a Power10 E1080 running FW1010.32 (MH1010_135).

Boot the LPAR to “Restricted Open Firmware Prompt".

Then simply enter "display_adapter_wwpn".

You’ll see information displayed for every FC adapter assigned to the LPAR, including the FC adapter location code, the link status and the WWPN.

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1 = SMS Menu 5 = Default Boot List

9 = Restricted Open Firmware Prompt 6 = Stored Boot List

Memory Keyboard Network Speaker ok

0 > display_adapter_wwpn

U78D8.ND0.XG01BC-P0-C0-C0-T0

Link down

Cannot Init Link.

PORT-WWN: 100000109bd59579

U78D8.ND0.XG01BC-P0-C0-C0-T1

Link down

Cannot Init Link.

PORT-WWN: 100000109bd5976a

U78D8.ND0.XG01BC-P0-C0-C0-T2

Link down

Cannot Init Link.

PORT-WWN: 100000109bd5976b

U78D8.ND0.XG01BC-P0-C0-C0-T3

Link down

Cannot Init Link.

PORT-WWN: 100000109bd5976c

SMS Macro Operation Succeeded.

0 >

And, as I said in 2019, "…of course, this is an undocumented feature and not officially supported. And I have no idea if this feature will also disappear from Open Firmware at some point in the future".