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218 bytes removed, 02:45, 27 November 2018
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== General ==
===== What So what is a container (Virtual Environment, Virtual Private Server, VPS, VE)Virtuozzo? =====:See [[Container]]Virtuozzo is a Linux based virtualization platform, combining container and hypervisor virtualization, into a single product. While primarily built for service providers to run cloud services and applications, it is used by variety of businesses, including MSP, SMB and Enterprises.
===== What are highlights of is OpenVZ technologyand how it compares to Virtuozzo? =====In short, OpenVZ is the only highly scalable virtualization technology with near-zero overheada free and opensource portion of Virtuozzo. It includes core of Virtuozzo functionality, strong isolation like kernel and rapid customer provisioning that's ready command line management tools for production use right nowcreating and managing containers. Deployment of Virtuozzo includes everything that OpenVZ improves efficiencydoes, flexibility plus additional features and quality of service in services available with the enterprise environmentcommercial version only.
===== Who needs How does Virtuozzo 7/OpenVZ? How it can be used? pair compares to its predecessor (Virtuozzo versions 4.x and 6/OpenVZ) =====:See [[Use cases]]Previously, OpenVZ and Virtuozzo were built out of the same code base with some unique patches applied. That warranted the user interfaces to be similar but not identical. With Virtuozzo 7, the compatibility will be on the binary level - effectively the open source components will be the same between OpenVZ and Virtuozzo.
===== What applications can run inside an How OpenVZ containerusers will benefit from it? =====OpenVZ components will be undergoing the same testing procedures as the commercial product. Also, some new features previously available on Virtuozzo only (notably hypervisor) will become available on the product built for OpenVZ community users.
Most applications can be installed to a container without any modifications===== What support options are available for Virtuozzo 7? =====For the moment, only preview (beta) versions of Virtuozzo 7 are available. OracleThey are intended for development and testing only, DB/2, Weblogic, Websphere and other big applications run just fine inside an OpenVZ containernot for production. Applications and services do Virtuozzo 7 is not have to be aware of OpenVZyet commercially supported. HoweverFor supported commercial version, direct access please refer to hardware is not available by default[http://www.odin.com/products/virtuozzo/ Virtuozzo 6].
===== How is Why I need Virtuozzo/OpenVZ different from other technologieswhen LXC exist? =====:See our [[Introduction to virtualizationcomparison]]of different virtualization solutions.
===== How is When OpenVZ secured & updatedwill be in upstream kernel? =====Our kernel developers [http:See [[Security]//openvz.org/File:Kernel_patches_stats.png work hard]to merge containers functionality into the upstream Linux kernel, making OpenVZ team the biggest contributor to Linux Containers (LXC) kernel, with features such as PID and network namespaces, memory controller, checkpoint-restore and much more.
===== How scalable is OpenVZ? =====
===== I want to show my appreciation to OpenVZ technology scales as well as standard Linux kernel — up to thousands of CPUs and terabytes of RAM. Besides, a single container could be scaled up from taking a little fraction of available resources up put some logo to all resources available dynamically — you do not even have to restart the containermy site. For example, containers can natively use up Where to all available CPUs which is different from hypervisor technology which requires special tricks like co-scheduling and even the best hypervisors are inefficient with more then 4-8 vCPUsget it? =====:See [[Artwork]].
===== How does OpenVZ improve efficiency What kind of servicesdocumentation is available? =====
For existing hardware, OpenVZ allows to utilize its processing power better by improving average load :Aside from 3-5% to at least 30-50%this wiki, while still providing ability to handle peak loads. To decrease complexity, OpenVZ provides standardized and centralized server management, logically decoupled from actual hardware. And when its time to buy new serverswhich contains lots of information, you can now use few more powerful servers instead of many little ones — with added benefits of better reliability, better peak performance check extensive [[Man|manual pages]] and typically longer lifespan[http://docs.openvz.org Virtuozzo documentation].
===== Who needs OpenVZ? How does OpenVZ improve flexibility of servicesit can be used? =====:See [[Use cases]].
By providing unified ===== How scalable platform with such unique features as rapid application and updates provisioning. Each container is hardware independent and can be moved to another OpenVZ-based system in seconds over the network. This allows for ease of hardware maintenance (move out all containers and do whatever you need with the box) and improved availability (keep a synchronized copy of your container elsewhere and start it up when primary service failed). If your old box is not able to cope with peak load anymore, just move your containers to a new one.? =====
===== What is the OpenVZ technology scales as well as standard Linux kernel — up to thousands of CPUs and terabytes of RAM. Read more about [[WP/Containers_density|OpenVZ containers density]] and [[performance overhead? =====]].
Near zero. There is no emulation layer, only security isolation, == Installation and all checking is done on the kernel level without context switching.upgrade ==
===== What are performance expectations? ===== Peak performance is achieved when only one container has active tasks. In this case, it could use 100% of available resources: all CPUs, all physical memory, all disk and network bandwidth. OpenVZ is not limiting you to a single-CPU virtual machine.  ===== I want to show my appreciation How to install OpenVZ and put some logo to my site. Where to get it? =====:See [[Artwork]].
===== Are there any control panels There are two versions of OpenVZ available for OpenVZ? =====:'''FIXME'''
===== What kind of documentation is available? =====* [[Roadmap|stable version]]: OpenVZ legacy (based on RHEL5 and RHEL6 kernels).* [[Roadmap|development version]]: [[Virtuozzo]] Linux distribution based on RHEL7 kernel.
:Aside from this wiki, which contains lots of information, you can check extensive [[Man|manual pages]] and [http://docs.openvz.org]. == Installation and upgrade == ===== How to install OpenVZ? ===== :See [[Quick installation]]
===== What hardware is supported by OpenVZ kernel? =====
:See [https://hardware.redhat.com/ RHEL Hardware Compatibility List].
 
===== How existing OpenVZ users can upgrade to the [[Virtuozzo|new version]]? =====
While there is no in-place upgrade, we prepared [[Upgrade_script_from_OpenVZ_to_Virtuozzo_7|upgrade script]] for OpenVZ users to move their containers to the new platform. The script allows to transfer containers from old to new OpenVZ version (or from OpenVZ to Virtuozzo).
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