Raid 1 on a Router Share?

I understand that the device needs connecting to a PC to configure the raid level. If raid 1 mirroring is configured, will the Duo continue to operate in raid 1 when connected to the ReadyShare USB port of a Netgear router, or is the raid functionality dependant on the Windows host software?

Oops, this is asking about My Book Duo not Cloud. Please move to appropriate section.