1 chmdisk
2?  -name new_name_arg
3?  -tier
3.1 tier0_flash
3.1 tier1_flash
3.1 tier_enterprise
3.1 tier_nearline
4?  -easytierload
4.1 default
4.1 low
4.1 medium
4.1 high
4.1 very_high
5?  -encrypt
5.1 yes
5.1 no
6 mdisk_id
6 mdisk_name