Qlogic OFFLINE / ONLINE

I have a Sun Fire v480 server that just started spitting out NOTICEs
about Qlogic qlc(0) Loop going OFFLINE then immediately back ONLINE.
It's doing it about every couple hours.

I realize I may have a faulty Gbic somewhere, but how can I verify if
qlc(0) is the internal controllers for the dual SCSI disks or if it's
the Qlogic IPS2200 add-in card.

OS: Solaris 10 (11/06)
Kernel: 125100-07

luxadm -e port

/devices/pci@9,600000/SUNW,qlc@2/fp@0,0:devctl CONNECTED
/devices/pci@8,600000/pci@1/SUNW,qlc@4/fp@0,0:devctl NOT CONNECTED
/devices/pci@8,600000/pci@1/SUNW,qlc@5/fp@0,0:devctl CONNECTED

Is qlc(0) really /devices/pci@9,600000/SUNW,qlc@2/fp.... ? That
would mean the internal controller would be going bad in the v480,
right?

Thanks, happy holidays.

Chris