What is KVM?
KVM, also known as Kernel-based Virtual Machine is a full virtualization or the latest paravirtualization solution. For Linux on containing virtualization CPU extensions like Intel VT or AMD-V processor. It consists a loadable kernel module that provides the core virtualization infrastructure. KVM server can run many virtual machines or servers. Running unmodified Linux or Windows operating system is easy with KVM. Our KVM VPS have virtualized hardware, a network card, disk, graphics adapter and etc. There are many VPS in the market based on OpenVZ. They are not a true hardware and operating system virtualization. The kernel on the KVM is not shared and in our past experience, KVM VPS gets better performance. As OpenVZ VPS is not true isolated, any instance of over usage can affect another VPS on the same server.
In the first place, are you fully utilise the entire server? Based on our past experience, most servers utilises 60% or less. In other words, you use 60 dollars for a hundred dollars server. It is wasting money.
To optimise the usage, virtualization is the solution. Splitting the server, you are paying lesser than before. Now the server can be shared by more users. You can install Linux or Windows operating system on each guest environment. Only the hardware is shared and virtualized. With hardware emulation, you get the most compatible hardware. Basically, it is the same before. You can install any software and application. Virtualization helps to reduce carbon footprint, costs cutting and many possibilities like moving server, load balancing, a virtual switch etc.
If the server is not fully utilised, you can share the cost by installing another server. It is the same on managing server but less maintenance on hardware as you can see virtualization reduces the footprint and helped to save space. Less money for the same performance.
You can do more with Virtual Private Server
Many customers have chosen VPS. Despite the fact that, VPS are slightly more expensive. VPS guarantees resources. Like CPU and RAM, unlike shared web hosting. Actually, you do not share with others. In fact, if you have bad neighbours, your resources are not stolen. You use what was allocated. In addition, a dedicated IP you will get with each VPS. In the event, if another VPS IP address is blacklisted. You are not affected. Unlike shared web hosting, if IP address of the shared server has blacklisted. Eventually, all hosted on the entire shared server will have difficulty sending emails.
VPS runs its own services. Therefore, VPS do not share the common services. Like your web server, mail server and database server are running independently. Shared hosting runs these services as shared. If the web server has stopped. It will affect all customers.
VPS can be updated at any time. The update does not affect other guest machines. Security fixes or bugs can be remedied quickly. Unlike shared hosting, a scheduled maintenance is planned for such activity.
Lastly, VPS comes with root shell access. This can be useful sometimes. Like clearing of mail queue, unwanted file or server administrative tasks with only a few commands.