Which one to choose between KVM and OpenVZ?
Both types of virtualization have distinct advantages and disadvantages. Choose which one is suitable for you.
OpenVZ is an operating system-level server technology that's actually based on the Linux kernel and OS. You can only run linux operations systems in an OpenVZ VPS and you cannot make any kernel level modifications inside the VPS. The VPS's on the host rely on the hosts kernel. One advantage of this is that it doesn't have the overhead a true hypervisor does.
KVM is true virtualization where the VPS operates as its own server, independently of the host node. Almost any operating system can run on three platforms: Linux, BSD or Windows. Since KVM is true virtualization, reliability and uptime on average should be greater under KVM.
Both types of virtualization have distinct advantages and disadvantages. Choose which one is suitable for you.
OpenVZ is an operating system-level server technology that's actually based on the Linux kernel and OS. You can only run linux operations systems in an OpenVZ VPS and you cannot make any kernel level modifications inside the VPS. The VPS's on the host rely on the hosts kernel. One advantage of this is that it doesn't have the overhead a true hypervisor does.
KVM is true virtualization where the VPS operates as its own server, independently of the host node. Almost any operating system can run on three platforms: Linux, BSD or Windows. Since KVM is true virtualization, reliability and uptime on average should be greater under KVM.
