does the customer need to configure SecureData/Voltage to have encryption at rest implemented? I would think any data at rest needs to be encrypted. we did this with oracle using Vormetric. which was at the disk level.
Currently you can use SecureData/Voltage to encryption at rest by column. On the road map is a feature to encrypt data at rest by table.
The cool thing about Voltage is the FPE feature.
Please let us know if you have any specific questions.