1 charray 
2?  -name   new_name_arg
3  
4?  -sparegoal   1-100
5  
6?  -balanced 
7  
8?  -slowwritepriority  
8.1 latency
8.1 redundancy
9    
10?  -rebuildareasgoal
10.1 0
10.1 1
10.1 2
10.1 3
10.1 4
11 mdisk_id
11 mdisk_name