Fas 2240-4- add adidional DS4246 Disk Shelf

Hello;

I have a FAS 2240-4 Single Head with one DS4246, and want to add the next DS4246.

My Plan tooks like this:

1. Cabling of the ACP correct (picture i found ihe forum)

2. Cabling the SAS, connect the Controller with the new Shelf firt, then connect Shelf 3 with Shelf 2.

Is this a way to do it with no ninterruprion?

What do you recommend?

Many Thanks, Thomas