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692 bytes added, 02:45, 27 November 2018
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{{Virtuozzo}}
 
== General ==
===== What is a container (Virtual Environment, Virtual Private Server, VPS, VE)? =====
:See [[Container]].
===== Who needs OpenVZ? How it can be usedSo what is Virtuozzo? =====:See [[Use cases]]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 applications can run inside an is OpenVZ containerand how it compares to Virtuozzo? =====OpenVZ is a free and opensource portion of Virtuozzo. It includes core of Virtuozzo functionality, like kernel and command line management tools for creating and managing containers. Virtuozzo includes everything that OpenVZ does, plus additional features and services available with the commercial version only.
Most of applications can be installed ===== How does Virtuozzo 7/OpenVZ pair compares to a container without any modificationsits predecessor (Virtuozzo versions 4. Oracle, DBx and 6/2OpenVZ) =====Previously, Weblogic, Websphere OpenVZ and other big applications run just find inside an OpenVZ containerVirtuozzo were built out of the same code base with some unique patches applied. Applications and services do not have That warranted the user interfaces to be aware of OpenVZsimilar but not identical. HoweverWith Virtuozzo 7, direct access to hardware is not available by defaultthe compatibility will be on the binary level - effectively the open source components will be the same between OpenVZ and Virtuozzo.
===== How is OpenVZ different users will benefit from other technologiesit? =====:See [[Introduction to virtualization]]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.
===== How is OpenVZ updated and why it is secureWhat support options are available for Virtuozzo 7? =====For the moment, only preview (beta) versions of Virtuozzo 7 are available. They are intended for development and testing only, not for production. Virtuozzo 7 is not yet commercially supported. For supported commercial version, please refer to [http:See [[Security]//www.odin.com/products/virtuozzo/ Virtuozzo 6].
===== Why I want to show my appreciation to need Virtuozzo/OpenVZ and put some logo to my site. Where to get itwhen LXC exist? =====:See our [[Artworkcomparison]]of different virtualization solutions.
== Installation and upgrade === When OpenVZ will be in upstream kernel? =====Our kernel developers [http://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.
===== What hardware is supported by OpenVZ kernel? =====
:See [http://www.parallels.com/en/products/virtuozzo/hcl/ Virtuozzo HCL].
===== Why there are different kernel flavours available I want to show my appreciation to OpenVZ and what do they meanput some logo to my site. Where to get it? =====:See [[Different kernel flavors (UP, SMP, ENTERPRISE, ENTNOSPLIT)Artwork]].
===== How do I rebuild the kernelWhat kind of documentation is available? =====:See [[Kernel build]].
===== What does 021stab018 in OpenVZ kernel version mean? =====:See Aside from this wiki, which contains lots of information, you can check extensive [[Kernel versioningMan|manual pages]] and [http://docs.openvz.org Virtuozzo documentation].
===== Who needs OpenVZ? How it can I check package signaturesbe used? =====:See [[Package signaturesUse cases]].
===== Is it possible to run x86 container on a x86_64 archHow scalable is OpenVZ? =====:Sure :) We actually did some work on that to enable migration of x86 container from x86 to x86_64 and back, and to enable using 32-bit iptables in 32bit container on an x86_64 system.
===== What filesystems should I choose for saving my containers? =====: The safest choice is ext2/3 OpenVZ technology scales as well as standard Linux kernel — up to save your containersthousands of CPUs and terabytes of RAM. Remember that ReiserFS is less stable than ext2Read more about [[WP/3.: If you choose to use XFS, there will be no support for disk quota inside Containers_density|OpenVZ containersdensity]] and [[performance]].
== Networking Installation and upgrade ==
===== How do I set up VPN for a containerto install OpenVZ? =====:See [[VPN via the TUN/TAP device]].
===== What is veth and how do I use it? =====There are two versions of OpenVZ available:See [[Virtual Ethernet device]].
===== Why doesn't net-snmpd work * [[Roadmap|stable version]]: OpenVZ legacy (based on my containers? =====RHEL5 and RHEL6 kernels).* [[Roadmap|development version]]:See [[SNMPD in containerVirtuozzo]]Linux distribution based on RHEL7 kernel.
== User Beancounters ==See [[Quick installation]]
===== What are those User Beancounters? =====See [[UBC]]. ===== What units are UBC parameters measured in? =====See [[UBC parameter units]]. ===== How do I set up a container which hardware is able to get X Mb of RAMsupported by OpenVZ kernel? =====:See [[Setting UBC parameters]]. ===== I can not start a program in containerhttps: it reports out of memory. What do I do? =====See [[Resource_shortage]]. ===== How can I reset <code>failcnt</code> in <code>/proc/user_beancounters</code>? =====See [[UBC failcnt reset]]hardware. == Troubleshooting ======= My kernel crashedredhat. What should I do? =====:See [[When you have an oops]]. ===== I see a lot of processes in D state. What does that mean? =====:See [[Processes in D state]com/ RHEL Hardware Compatibility List].
== Quick reference card for === How existing OpenVZ users can upgrade to the [[Virtuozzo|new version]]? ====={{PDFlinkWhile there is no in-place upgrade, we prepared [[Upgrade_script_from_OpenVZ_to_Virtuozzo_7|[http://pronicsupgrade script]] for OpenVZ users to move their containers to the new platform.fi/~eero/mirrors/openvz-reference-cardThe script allows to transfer containers from old to new OpenVZ version (or from OpenVZ to Virtuozzo).pdf openvz-reference-card.pdf]}}
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