Applies to NetApp E-Series Array Description In the event of a dual controller failure on an array with secure drives enabled the drives will need to be unlocked with the security key. Without the sec...Applies to NetApp E-Series Array Description In the event of a dual controller failure on an array with secure drives enabled the drives will need to be unlocked with the security key. Without the security key, the newly replaced controllers will not be able to access the configuration stored on the drives.