Please let me know the Advantages and the Dis on the above hosting options . we have the idea on the normal application like exchange in the above options . Coz I have limited in the Knowledge in the oracle operational and implementation . I have few comment on the each case .
Onsite (on- Premises) - we have to look after the Infrasture with the separate new skill adding to IT department . I can see some level of cost saving altogether . but I did not have the right way to analyze the power/AC .
Manage service : we don't want to worry about the Infrasture /backup and the AC /power . other thing is access from the outside very easy due to external hosting and we don't want to invest extra for Firewall .
please share your idea in the above comment