Virtuozzo

Virtuozzo

Infobox_Software
name = Parallels Virtuozzo Containers
developer = Parallels, Inc.
latest_release_version = 4.0
latest release date = January 2008
operating_system = Windows and Linux
platform = x86, x86-64, IA-64
genre = OS-level virtualization
website = [http://www.parallels.com/virtuozzo Virtuozzo]

Parallels Virtuozzo Containers is a proprietary operating system-level virtualization product produced by Parallels, Inc. A version that supports Linux has been available since 2001; a version that supports Microsoft Windows became available in 2005.

Description

Parallels Virtuozzo Containers creates multiple, isolated containers (otherwise known as virtual environments, or VEs), or Virtual Private Servers, or VPSs), on a single physical server. This allows the sharing of hardware, systems management effort, and sometimes software licenses among different workloads.

A container behaves in most respects as if it were a stand-alone server. Each container has its own superuser (root or Administrator), set of users/groups, IP address(es), processes, files, applications, system libraries and configuration files. Container is completely accessible via the network. Due to virtualized network stack, a container owner can have his own routing tables and firewall (iptables) rules.

Parallels Virtuozzo Containers can support tens to hundreds of containers on a single server due to its use of operating system-level virtualization.Fact|date=March 2008 The host OS can be Linux or Windows. With a Windows host OS, the virtual environments on the server have to be the same OS as the host OS. For example, a host machine running Windows 2003 would have containers also running Windows Server 2003. The Linux edition is more flexible, allowing containers to appear to have different distributions of Linux.

Operating system-level virtualization

Parallels Virtuozzo Containers virtualizes at the operating system level, rather than the hardware level as other Virtual Machine (VM) products frequently do. Whereas VMs attempt to virtualize "a complete set of hardware," containers represent a "lighter" abstraction, virtualizing instead "an operating system instance". All containers run atop a single operating system kernel. The containerization mechanisms multiplexes this one OS kernel to look like multiple OS (and server) instances, especially from the perspective of running applications, users, and network services. Parallels Virtuozzo Containers for Linux is based on OpenVZ, which is available under the GNU General Public License, and its concepts are similar to several other operating system-level virtualization implementations, including HP-UX Secure Resource Partitions, Solaris Containers, Linux-VServer and FreeBSD Jail.

Because they virtualize less, containers impose lower overhead than VMs. As a result, more containers can be supported on a given server. Parallels Virtuozzo Containers supports servers with up to 64 CPUs and 64 GB of RAM.

Comparison to other technologies

Parallels Virtuozzo Containers employs a virtualization approach which differs from most other virtualization technologies. Parallels Virtuozzo Containers was designed to be a low-overhead, fast-performing solution with many tools for simple management, since its early adopters include service providers with thousands of containers to manage.

Since 2001, Parallels Virtuozzo Containers has been running in service provider environments, which house hundreds of different customers on a single server, without an external firewall. Because they rely on the services of a single kernel, all containers on a given server run the same kernel, but everything else — system libraries, configuration and program files — can be different in different containers. That means that different Linux distributions can coexist on a single "Parallels Virtuozzo Containers for Linux" server.

External links

* [http://www.parallels.com/virtuozzo Parallels Virtuozzo Containers official site]
* [http://wiki.openvz.org/Main_Page OpenVZ website]
* [http://wiki.openvz.org/Introduction_to_virtualization A short intro into three different virtualization techniques]


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См. также в других словарях:

  • Virtuozzo — es un producto de software propietario para virtualización de sistema operativo producido por SWsoft, inc. Una versión que soporta Linux ha estado disponible desde 2001; una versión que soporta Microsoft Windows llegó a estar disponible en 2005.… …   Wikipedia Español

  • Virtuozzo — (ausgesprochen „Virtuoso“) ist eine proprietäre Software, um Betriebssysteme zu virtualisieren, und wird von Parallels, Inc. (vor 2008 SWsoft, Inc.) entwickelt und vertrieben. Die Linux Version ist seit 2001 erhältlich, die Version für Microsoft… …   Deutsch Wikipedia

  • Virtuozzo — популярное решение для виртуализации ОС, созданная компанией SWsoft, Inc (ныне носит название ). Существуют версии Virtuozzo для работы в Windows. Версия для Linux базируется на проекте Описание Система была создана и ориентирована на простоту… …   Википедия

  • Parallels Virtuozzo Containers — виртуализация на уровне OS Тип виртуализация Разрабо …   Википедия

  • SWsoft — Type Privately held company Industry Computer software Genre Virtualization Founded 1997 …   Wikipedia

  • Parallels, Inc. — Infobox Company company name = Parallels, Inc. company company type = Privately held company key people = Sergey Belousov, Chairman and CEO num employees = 900+ (as of May 2008) foundation = 1999 location = flagicon|Switzerland Neuhausen am… …   Wikipedia

  • OpenVZ — виртуализация на уровне ОС Тип виртуализация Разработчик Сообщество …   Википедия

  • Ourinternet — Our Internet, founded in 1998[1], is a family owned and run company located in Fort Lauderdale, Florida. Company s primary focus is providing private label reseller hosting services and VPS hosting solutions based on Virtuozzo[2] Contents 1… …   Wikipedia

  • Xen — es un monitor de máquina virtual de código abierto desarrollado por la Universidad de Cambridge. La meta del diseño es poder ejecutar instancias de sistemas operativos con todas sus características, de forma completamente funcional en un equipo… …   Wikipedia Español

  • Parallels — Тип …   Википедия


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