Do you mean from a installed system or from a system which you plan to buy ?
" from a installed system"
-> System Manager (GUI oder Webinterface in 8.3)
"from a system which you plan to buy"
-> Tools like Synergy
> capacity of disk/shelf per controller?
- It depends on the version of ONTAP
- How much Spares to you need
- With or without disk partitioning
- Which Shelf type and which disk format
A list of our shelfs with details: