1 lsvdisk 
2?  -filtervalue attrib=value
2.1?  -unit
2.1.1 b
2.1.1 kb
2.1.1 mb
2.1.1 gb
2.1.1 tb
2.1.1 pb
3?  -nohdr
4?  -bytes
5?  -delim  delimiter
6?  -filtervalue?
7? 
7 object_id
7 object_name