As to the resources that each individual client receives on a virtual server, they may not quite match the resources of a dedicated server, but they are usually enough for all but the largest enterprise level business establishments. Virtual technology also allows the resources of the server to be allocated to the business as they are needed, which saves a business from having to pay too early for services that they do not use or underestimate the services that they do need.
Virtual servers can be managed or unmanaged services. In a managed service, the virtual server host is responsible for all of the maintenance to the server. In unmanaged service, the client is responsible for the maintenance. This is usually only a wise course of action if a business has the manpower and the resources to take care of a server themselves. However, since the server itself is rented from the server hosting company, it is usually the best policy to let the server host take care of it, as they are the ones who actually own the server.
Businesses who are set to grow may also want to invest in an unmetered line. In the unmetered line of a virtual server the amount of data which is able to be streamed through the server has no limit, which will allow for the most growth possible for a business with traffic spikes and constant rises in traffic.
Certain types of software do not run well in virtual environments – this is really the only weakness of server virtualisation technology.