At which level does Non-Disruptive Migration work?

A VMAX3 parent Storage Group (SG) contains two child SGs: SG1 and SG2.
What is a valid bandwidth limit setting for this cascaded Storage Group?

Which SYMCLI command(s) can be used to set/modify the Host I/O limits?

You are in the process of designing a VMAX3 solution. One of the applications requires performance equivalent to Flash disks.
Which Service Level Objective should be recommended?

Which SYMCLI command can be used to create a new TDEV and assign it to a Storage Group in one step?