Hi,

Currently, I’m interest in your shared hosting, however, I’m planning to move to a dedicated server in the future. I only have one question, what is the advantage and disadvantage of the dedicated server versus virtual server?

Dedicated server is more powerful but expensive.
Virtual dedicated server is cheaper than plain dedicated server but it is more reliable. VDS is an optimal solution for medium and small businesses as dedicated servers are for larger businesses.

VDS is a software isolated instance running on the phisical server. It looks like a full featured dedicated server with isolated OS software, etc. The only difference tehre could be many VDS servers on the phisical server and each VDS have much less resources to use than stand alone dedicated server.

thanks for your quick answer.

Can you give me an example of how many virtual server reside into one compute (sharing the same CPU, Hard disk and motherbord)? thanks.

Look here
Pay attention to option VPS per server