If the target port that you want to remove is the last
path to the device, unmount the file systems or export
the ZFS pools for all logical units used by the host on
the storage device.
Unconfigure the target port from your system by using
the cfgadm -c unconfigure
target-port
command. For example:
# cfgadm -c unconfigure c7::10000000c9c07a6c
Note -
The changes made by the cfgadm -c
unconfigure command do not persist
after a reboot.
(Optional) To make the devices permanently unavailable
to the system, you can use switch zoning or LUN masking
on the storage device.