Media Server Encryption Option (MSEO) security
The media server encryption option (MSEO) security type provides a client level data encryption solution. Encrypted tape data is transported and stored in a vault off site lowering data loss risk in a total disaster recovery scenario. The master server, media server, MSEO, and client are all run within a local enterprise data center. The MSEO can relieve CPU intensive operations on the individual clients. This is comparing MSEO to client side encryption by moving encryption operations to the media server. However, MSEO can affect CPU performance on the media server. The MSEO to tape traffic is encrypted. Client to media server traffic is not encrypted. Keep the keys on the MSEO device so that encrypted data can be accessed in the future.
The following figure shows an example of the media server encryption option (MSEO) configuration.