Hi,
WAIK / ADK is required for EADR and EADR is from my point of view the best way for DR of a physical server. In virtualized environments the VE integration might be the better choice.
Please have a look at my articles regarding EADR at: http://www.data-protector.org/wordpress/?s=EADR
Especially have a look at "recover your cell server".
Best regards
Daniel