NetApp FC4600 Hardware Cabling Manual page 175

Component
Locations on
the CE4900
Controller-Drive
Tray
Chapter 6: Component Locations
The top controller, controller A, is inverted from the bottom controller, controller

B.
The top of the controller-drive tray is the side with labels.

The configuration of the host ports might appear different on your system

depending on which host interface card configuration is installed.
Figure 12 CE4900 Controller-Drive Tray – Front View and Rear View
1. Drive Canister
2. Alarm Mute Switch
3. Link Rate Switch
4. Controller A (Inverted)
165