The storage system automatically creates and stores a primary backup of each encryption key. In addition, you can create secondary backups of the encryption keys. If a primary backup key is unavailable, the secondary backup is required to restore the key.
Important: The creation and secure storage of backup keys must be included as part of your corporate security policy. To ensure data availability, it is strongly recommended that you back up each encryption key or group of keys immediately after they are created and also after each hardware maintenance in which a drive or EBEM is replaced. You are responsible for storing the secondary backup keys securely.
CAUTION:
If a primary backup key becomes unavailable and no secondary backup key exists, the system cannot decrypt the encrypted data.