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check the attributes for the fibre adapter on both vios servers
Are they both switch connected with dynamic tracking and fast fail on?
$ lsdev -dev fscsi1 -attr
attribute value description user_settable

attach switch How this adapter is CONNECTED False
autoconfig available Configuration State True
dyntrk yes Dynamic Tracking of FC Devices True+
fc_err_recov fast_fail FC Fabric Event Error RECOVERY Policy True+
io_thrshld_tmr no FC special error recovery threshold timer enable True+
scsi_id 0x20500 Adapter SCSI ID False
sw_fc_class 3 FC Class for Fabric True


Shaun Ryan
Systems Administrator Unix/Linux
[1][USEMAP] [2]P: +64 3 363 6939
[3]M: +64 21 974 587
[4]E: Shaun.Ryan@xxxxxxxxxxxxxxxxxxx
[5]167 Main North Road, Christchurch 8140

-----Original Message-----
From: Marc Rauzier <marc.rauzier@xxxxxxxxx>
Sent: Thursday, 28 July 2022 7:49 am
To: midrange-l@xxxxxxxxxxxxxxxxxx
Subject: Re: VIOS fiber channel: Why only one port showing on lsnports?

Le 27/07/2022 à 21:32, Rob Berendt a écrit :
> Both VIOS lpars have the same dual port FC card.
> Why would one lpar only show one port?
> On lpar VIOS21 I can run this:
> $ lsnports
> name physloc fabric tports aports swwpns awwpns
> fcs0 U78D2.001.WZS01HD-P1-C6-T1 1 64 64 3088 3083
> fcs1 U78D2.001.WZS01HD-P1-C6-T2 1 64 64 3088 3083
> However on lpar VIOS22 I only see one port:
> $ lsnports
> name physloc fabric tports aports swwpns awwpns
> fcs0 U78D2.001.WZS01HD-P1-C5-T1 1 64 59 3088 3058

Assuming T2 port is connected to a switch, you may want to check NPIV
enablement on that switch port.

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