Immediately after creating encryption keys, it is strongly recommended that you back up all keys (secondary backup). You can back up encryption keys to a file or to a key management server. If you do not use a key management server, you can back up encryption keys to a file using the Backup Keys to File window. If you use a key management server, the keys are automatically backed up. When you configure the key management server in the Edit Encryption Environmental Settings window, you can also schedule regular backups.
CAUTION:
You are responsible for storing the secondary backup keys securely. Include this process in your corporate security policy. If the primary data encryption key becomes unavailable and the secondary backup data encryption key does not exist, the system cannot decrypt the encrypted data.
Encryption keys that you create are backed up in batch.