1 mklcu
2?  -dev storage_image_ID
3  -qty quantity  -id lcu_ID  -ss ss_ID
4?  -lcutype
4.1 3990-3
4.1 3990-tpf
4.1 3990-6
4.1 bs2000
5?  -critmode
6?  -pprcconsistgrp
7?  -extlongbusy timeout
8?  -ccsess timeout