For additional information about the EF570 storage systems and related hardware, refer to the EF570
documentation at http://mysupport.netapp.com/eseries.
6 Drive Shelves
The EF570 all-flash array consists of a controller drive shelf that supports 24 SSDs and up to 4 DE224C
expansion-drive shelves for a maximum of 120 SSDs.
The DE224C is a 2U shelf that holds up to 24 2.5" drives. It features dual high-speed 12Gbps SAS 3 I/O
modules (IOMs) and dual ENERGY STAR Platinum certified high-efficiency power supplies (913W) with
integrated fans, in a duplex system. It is fully redundant with hot-swappable components.
Figure 58, Figure 59, and Figure 60 show the front and rear views of the DE224C drive shelf.
Figure 58) DE224C front view with end caps.
Figure 59) DE224C front view without end caps.
Figure 60) DE224C rear view.
The modular design of the DE224C makes the hardware easy to deploy and maintain over the life of the
storage system.