what does this mean in storage ?

what does this mean ?
this is the output of this command

i have 2 cards with 2 ports or one card with 4 ports and what does this "NOT CONNECTED" mean ?

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

See this reply: SAN/Solaris: luxadm shows NOT CONNECTED Post: 302581656

thanks alot