NetApp StorageGRID SG6000 Manual page 135

About this task
You can determine if you have a failed controller in two ways:
• The Recovery Guru in SANtricity System Manager directs you to replace the controller.
• The amber Attention LED on the controller is on, indicating that the controller has a fault.
If both controllers in the shelf have their Attention LEDs on, contact technical support for
assistance.
Because the storage controller shelf contains two storage controllers, you can replace one of the controllers
while your appliance is powered on and performing read/write operations, as long as the following conditions
are true:
• The second controller in the shelf has Optimal status.
• The "OK to remove" field in the Details area of the Recovery Guru in SANtricity System Manager displays
Yes, indicating that it is safe to remove this component.
When possible, place the appliance into maintenance mode for this replacement procedure to
minimize the potential impact of unforeseen errors or failures.
If the second controller canister in the shelf does not have Optimal status or if the Recovery
Guru indicates that it is not OK to remove the controller canister, contact technical support.
When you replace a controller, you must remove the battery from the original controller and install it in the
replacement controller. In some cases, you might also need to remove the host interface card from the original
controller and install it in the replacement controller.
The storage controllers in most appliance models do not include host interface cards (HIC).
Steps
1. Unpack the new controller, and set it on a flat, static-free surface.
Save the packing materials to use when shipping the failed controller.
2. Locate the MAC address and FRU part number labels on the back of the replacement controller.
This figure shows the E2800 controller. The procedure for replacing the EF570 controller is identical.
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