1 mkmdiskgrp 
2?  -name pool_name
3?  -mdisk
3.1 mdisk_id_list
3.1 mdisk_name_list
4?  -tier
4.1 tier0_flash
4.1 tier1_flash
4.1 tier_enterprise
4.1 tier_nearline
5  -ext extent_size
5  -size mdiskgrp_size  -parentmdiskgrp
5.1 mdiskgrp_id
5.1 mdiskgrp_name
6?  -warning
6.1 disk_size
6.1 disk_size_percentage %
6.2?  -unit
6.2.1 b
6.2.1 kb
6.2.1 mb
6.2.1 gb
6.2.1 tb
6.2.1 pb
7?  -easytier
7.1 auto
7.1 on
7.1 off
7.1 measure
8?  -owner owner_type
9?  -encrypt
9.1 yes
9.1 no
10?  -datareduction
10.1 yes
10.1 no