You will need to backup and restore Notification Server KMS encryption keys for the following reasons.
The Notification Server uses the Key Management System (KMS) encryption keys to protect sensitive data. You can take a backup of Notification Server
KMS encryption keys at any time in the Symantec Installation Manager (SIM).
To back up and restore Notification Server cryptographic keys:
To back up KMS encryption keys:
The Backup Notification Server Cryptographic Keys page appears after the installation
To restore KMS encryption keys: