Virtual private server.
As a rule, a virtualization system is deployed on powerful machines (usually server processors Xeon E5, E7,
stephost.md use Xeon E5), with ECC RAM.
Second. A server control panel is provided, unlike the dedicated ones, where you have to pay for it separately (although there are also may be problems with connecting with it.)
And with the control panel, you immediately get almost complete monitoring of resources (processor, memory, network, drive), which allows, if necessary, to optimize work processes, if something goes wrong.
The increase / decrease of resources occurs programmatically, which means much faster, and without the participation of technicians.
Otherwise, everything is like a dedicated server.
And I call such servers "Big opportunities in a small package"