Image shows the layout of the servers and switches in Oracle Exadata Database Machine X3-8 and X4-8 Full Rack.
Front view, from the bottom to the top of the rack, the layout is as follows:
U1: Vented Filler
U2 - U15: Exadata Storage Servers
U16 - U20: Oracle Database servers
U21 - U23: Vented Filler
U24 - U28: Oracle Database servers
U29 - U42: Exadata Storage Servers
Rear view, from the bottom to the top of the rack, the layout is as follows:
U1: Empty
U2 - U15: Exadata Storage Servers
U16 - U20: Oracle Database servers
U21: 36-Port IB Switch
U22: Cisco 4948
U23: 36-Port IB Switch
U24 - U28: Oracle Database servers
U29 - U42: Exadata Storage Servers