KISS
Unless there is a strong reason to go this route, I would avoid it.
It just makes things too complicated.. and with SSD speeds being what they are these days and enterprise SSDs having supercaps for them to finish writing in case of power failure, I just dont see the point of this.
Yes, in some critical infraestructure it might be useful... but that infraestructure already has secure power AND I suspect everyone is using ACID databases properly.. so again, what is the point here?
This looks like a lot like the XBox One special small memory thing.. that they just god rid of.