1 server for hosting this applications : CRM and HR.
1 server for the networking admin, and Plesk application
-Important : could you validate that all the services/servers are included in this specification for this business? For the SAN solution we use :SAN FC / iSCSI
The network: I have 5 points to clarifier :
implement a BGP? Or rent bandwidth from an ISP?
b) Suppose that I would like to implement my own BGP: which architecture is the best? which router/firewall/switch I need to buy ?
b.)In fact I would to be independent from any ISP(resellers of Bandwidth), so I would like to start with a small network and then develop this network in function of business.