NetApp ASA C Series Install page 248

The controller module moves slightly out of the chassis.
6. Slide the controller module out of the chassis.
Make sure that you support the bottom of the controller module as you slide it out of the chassis.
7. Set the controller module aside in a safe place, and repeat these steps for the other controller module
in the chassis.
== Step 2: Move drives to the new chassis
You need to move the drives from each bay opening in the old chassis to the same bay opening in the
new chassis.
1. Gently remove the bezel from the front of the system.
2. Remove the drives:
a. Press the release button at the top of the carrier face below the LEDs.
b. Pull the cam handle to its fully open position to unseat the drive from the midplane, and then
gently slide the drive out of the chassis.
The drive should disengage from the chassis, allowing it to slide free of the chassis.
When removing a drive, always use two hands to support its weight.
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Locking latch
Locking pin