Choosing web hosting: Open VZ vs. Xen

Started by rajan, Aug 23, 2022, 12:04 AM

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rajanTopic starter

As I'm not well-versed in shared hosting servers, I'm seeking guidance on whether to opt for Open VZ or Xen. For the past year, I've used GoDaddy's hosting services which come with royal domains and there haven't been any apparent issues. However, I recently received a newsletter from them announcing their new VPS on Xen. I'm contemplating trying it out given the fairly reasonable prices.

Would you like me to provide more information on web hosting or any other related topic?


OpenVZ drawbacks include the inability to install a different OS other than the pre-installed Linux, a File system failure impacting all VPS owners on the same physical server, difficulty in loading necessary modules into the OS without assistance from the hosting provider, and increased core load with each new VPS due to multiple VPSs on one core.

As for Xen, disadvantages include the need for a server reboot to make changes to server characteristics or tariff and higher costs due to no overselling of resources.

If you're considering switching to VPS, it's important to understand the limitations and benefits of each type of virtualization technology and assess your specific needs. VPS can offer greater flexibility, control, and performance compared to shared hosting plans.

Gareth Freeman

When deciding between OpenVZ and Xen, I personally opted for Xen, but it's important to consider several factors when making your decision, including your resource needs, desire for private access to the machine's SSD, and desired level of protection.

While OpenVZ may be a more budget-friendly option, there are hidden downsides to consider. Many people switch to Xen for its increased resources and more transparent feedback. It's important to carefully weigh the pros and cons of each option before making a final decision.

it's worth noting that there are other types of virtualization technologies besides OpenVZ and Xen that may better suit specific needs or budget constraints.


OpenVZ is a Linux-based containerization platform that enables multiple operating systems to run on a single host system. Each container works as an independent Linux system, with root-level access rights and isolation at the file, user/group, process, and network levels. Server providers offer OpenVZ containers with allocated RAM, processor cores, and hard disk space, which are sold as Linux virtual web servers. Some of the CPU and memory resources are allocated to each container, while some resources can be borrowed temporarily from unused resources of other containers.

However, OpenVZ has its limitations, such as the inability to change the kernel settings or install additional kernel modules. OpenVZ 6, which is based on the older Linux 2.6, is still widely used, and very few providers offer the latest version, OpenVZ 7. Nevertheless, OpenVZ requires less energy, allowing for more VPS from one physical server.

In contrast, Xen is an open-source type 1 hypervisor that runs directly on the host hardware. It enables VMs to run on any OS, including Linux, Windows, and BSD, with the ability to update the kernel, change its settings, or use additional kernel modules. To reduce costs, Xen uses paravirtualization to perform hardware operations more efficiently. Additionally, Xen Hardware Virtual Machine (Xen-HVM) mode can be used with hardware virtualization provided by the host system.

Ultimately, when choosing a virtualization platform, it's important to consider the specific needs and requirements of your project to determine which platform is best suited.