About this task
You can determine if you have a failed controller in two ways:
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.
Attention: 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.
Note: The storage controllers in the appliance do not include host interface cards (HIC).