Oracle Logging Analytics enables you to use your own encryption key that you have stored in OCI Vault to encrypt your logs. After you place your request for the encryption using your own keys by contacting Oracle Support, based on the size of your log data, Oracle creates a dedicated block volume or object storage bucket. This ensures that your data is separated and can be selectively encrypted. See Security of Your Logs in Logging Analytics and Allow the Use of Customer-Provided Keys for Encrypting Logs.