*Comparison between Virtuozzo and OpenVZ*

Virtuozzo is SWsoft’s virtualization and automation solution built on top of OpenVZ. Differently from OpenVZ, Virtuozzo provides improvements and additional functionality in the areas of density, management tools, recovery, and other areas. Specific benefits of Virtuozzo compared to OpenVZ can be found below:

* Higher VPS density. Virtuozzo provides efficient memory and file sharing mechanisms enabling higher VPS density and better performance of VPSs.

* Management Tools. Virtuozzo ships with number of management, monitoring, troubleshooting, and administration tools significantly reducing management, administration, and deployment costs.

* Specific tools include VZMC — GUI-based administration, management, monitoring, and provisioning tool.

* VZCC — browser-based administration, management, monitoring, and provisioning tool.

* PowerPanel — browser-based recovery and administration tool for VPS owner.

* Number of additional shell utilities.

* Support and Maintenance. Virtuozzo™ is a commercial product supported and maintained by SWsoft with options for 24×7 phone support and guarantees on maintenance schedules.

* Advanced Recovery, Monitoring, and Back-up tools.

* Physical-to-VPS and VPS-to-Physical migration tools. Those tools allow easy conversion of existing physical machines into Virtuozzo™ VPS (and vice-versa) facilitating the adoption of virtualized infrastructure.

* Common client-server XML-based management API (VZAgent). API allows easily integration of Virtuozzo into existing management infrastructure and development of additional management and monitoring modules.

* Traffic accounting tools. These tools enable bandwidth management and control for individual VPSs and provide additional security mechanisms for VPSs running on the same host.

Other benefits of Virtuozzo:

* Integration with SWsoft’s Plesk control panel solution.

* Discounts on Plesk licenses.

* Name-based hosting (no need for public IP for each VPS).

* Easy to use installation utility.

"Article Source":http://blog.eukhost.com/2006/10/11/virtuozzo-over-openvz