Step 1: Power on controller

You must power on the controller shelf to confirm that it is working correctly.

1. Turn on the power switch on the rear of each drive tray that is connected to the controller-drive tray.
2. Wait two minutes for the drives to spin up.
3. Turn on the power switch on the rear of the controller-drive tray.
4. Wait three minutes for the power-up process to complete.
5. If you are performing a complete controller replacement for either E2800 or E5700 controllers, proceed to one of the following procedures based on your drive security scenario.

   Complete controller replacement type	Procedure and prerequisites
   All unsecured drives, neither External or Internal Key Management	Proceed to After you finish.
   Mix of secured and unsecured drives, Internal Key Management	You first must create an internal security key and then import the security key manually to unlock the secured drives. After the drives are unlocked, you can access the drives. Create internal security key Controller swap with internal key management and one or more drives secured
   All secured drives, Internal Key Management	Controller swap with internal key management and one or more drives secured
   Mix of secured and unsecured drives, External Key Management	Proceed to After you finish. Attention: After performing the controller replacement, the controllers will automatically resynchronize with the External Key Management Server and the drives will unlock and be accessible. Note: If you receive a seven-segment display lock-down code of L5 after performing a controller replacement of mixed secured drives with internal key management, contact technical support.
   All secured drives, External Key Management, you have temporarily switched back to Internal Key Management for the controller replacement procedure	You must first unlock the secured drives using the Internal Key Management procedure. After the drives are unlocked, then you transition back to External Key Management by creating a new external security key for the storage array. Controller swap with internal key management and one or more drives secured Create external security key
   All secured drives, External Key Management, you have not temporarily switched to Internal Key Management for the controller replacement procedure	Controller swap with external key management and all drives secured