You will need to backup and restore Notification Server KMS encryption keys for the following reasons.
Migrating data from one computer to another
Disaster recovery. Note: you should make a backup of the KMS files and store them in a secure place (we recommend to store the KMS files on a different server),
IT Management Suite (ITMS) 7.6, 8.0, 8.1, 8.5
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:
Start the Symantec Installation Manager
On the Installed Products page, click Repair installed products
On the Repair Product page, click Backup or restore Notification Server configuration, and then click Next
On the Backup or Restore Notification Server Configuration page, do one of the following:
To back up KMS encryption keys:
Select Back up KMS encryption keys
Browse and select the location where you want the backup file to be stored. Symantec recommends storing the backups on a different server
Provide a password for the cryptographic keys backup file. You need this password for decrypting the backup file during the restore process.
Click Back Up
The Backup Notification Server Cryptographic Keys page appears after the installation is completed.
To restore KMS encryption keys:
Select Restore KMS encryption keys (restore using the .zip file.
Browse and select the KMS encryption keys backup file.
Enter the password to decrypt the backup file, and then click OK