You need to install your HA pair in one or more NetApp system cabinets or in standard telco equipment racks. Each of these options has different requirements.
HA pairs in an equipment rack
Depending on the amount of storage you ordered, you need to install the equipment in one or more telco-style equipment racks.
HA pairs in a system cabinet
Depending on the number of disk shelves, the HA pair you ordered arrives in a single system cabinet or multiple system cabinets.