1. Resource Efficiency: OpenVZ allows for better resource utilization than traditional VMs because it shares resources like CPU and RAM among containers. This means it can host more virtual environments on the same hardware.
1. High Performance: As all OpenVZ containers share the same OS kernel, operations in a container can run almost as fast as on the host itself. Traditional VMs, on the other hand, include an additional OS layer which can decrease performance.
1. Dynamic Resource Allocation: OpenVZ allows for dynamic resource allocation, where resources can be adjusted on-the-fly depending on the requirements of individual containers. In contrast, traditional VM typically need to be rebooted for resource changes to take effect.
1. Disk Space: OpenVZ containers consume less disk space as they share the same OS kernel and system libraries. Traditional VMs require a full copy of the guest OS including a separate set of system libraries.
1. Fast Provisioning: OpenVZ containers can be created, destroyed and cloned more rapidly compared to traditional VMs because they don’t need to boot an entire operating system.
1. High Density: OpenVZ can host more containers on the same hardware compared to traditional VMs, as containers share a lot of their OS with the host.
1. Migration: OpenVZ supports live migration, i.e., the ability to move a running container between physical machines with virtually no disruption of service.
1. Isolation: Each container in OpenVZ is isolated from each other providing a good level of security.
1. Easy Administration: OpenVZ simplifies system administration. You don’t have to administer individual OS for each VM, as all containers share the same OS.
1. Cost-effective: As OpenVZ utilizes resources effectively and efficiently, it helps to cut down hardware, electricity, and cooling costs making it more cost-effective compared to traditional VMs.
