Installing licenses for the replacement controller in ONTAP
You must install new licenses for the replacement controller if the degraded controller was using ONTAP features that require a standard (controller-locked) license. For features with standard licenses, each controller in the cluster should have its own key for the feature.
Until you install license keys, features requiring standard licenses continue to be available to the replacement controller. However, if the degraded controller was the only controller in the cluster with a license for the feature, no configuration changes to the feature are allowed. Also, using unlicensed features on the controller might put you out of compliance with your license agreement, so you should install the replacement license key or keys on the replacement controller as soon as possible.
The licenses keys must be in the 28-character format.
You have a 90-day grace period in which to install the license keys. After the grace period, all old licenses are invalidated. After a valid license key is installed, you have 24 hours to install all of the keys before the grace period ends.