Open main menu

OpenVZ Virtuozzo Containers Wiki β

Changes

FAQ

1,405 bytes added, 10:18, 9 January 2021
Undo revision 23356 by 203.81.71.218 (talk)
{{Virtuozzo}}
 
== General ==
===== What is a Virtual Environment (Virtual Private Server, VPS, VE)? =====
See [[VE]]
===== Who needs So what is Virtuozzo? =====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 is OpenVZand 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.  ===== How does Virtuozzo 7/OpenVZ pair compares to its predecessor (Virtuozzo versions 4.x and 6/OpenVZ) =====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. ===== How OpenVZ users will benefit from it can be used? =====See [[Use cases]]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 different from other technologiesWhat support options are available for Virtuozzo 7? =====See [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 [Introduction to virtualization]http://www.odin.com/products/virtuozzo/ Virtuozzo 6].
===== How is Why I need Virtuozzo/OpenVZ updated and why it is securewhen LXC exist? =====See our [[Securitycomparison]]of different virtualization solutions.
===== I want to show my appreciation to When OpenVZ and put some logo to my site. Where to get itwill be in upstream kernel? =====See Our kernel developers [[Artwork]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.
== Installation and upgrade ==
===== What hardware is supported by I want to show my appreciation to OpenVZ kerneland put some logo to my site. Where to get it? =====:See [http://www.virtuozzo.com/en/products/virtuozzo/hcl/ Virtuozzo HCL[Artwork]].
===== Why there are different kernel flavours What kind of documentation is available and what do they mean? =====See [[Different kernel flavors (UP, SMP, ENTERPRISE, ENTNOSPLIT)]]
===== How do I rebuild the kernel? =====See :Aside from this wiki, which contains lots of information, you can check extensive [[Kernel buildMan|manual pages]]and [http://docs.openvz.org Virtuozzo documentation].
===== What does 021stab018 in Who needs OpenVZ kernel version mean? How it can be used? =====:See [[Kernel versioningUse cases]].
===== How can I check package signaturesscalable is OpenVZ? =====See [[Package signatures]]
===== Is it possible OpenVZ technology scales as well as standard Linux kernel — up to run x86 VPS on a x86_64 arch? =====Sure :) We actually did some work on that to enable migration thousands of x86 VE from x86 to x86_64 CPUs and back, terabytes of RAM. Read more about [[WP/Containers_density|OpenVZ containers density]] and to enable using 32-bit iptables in 32bit VE on an x86_64 system[[performance]].
== Networking Installation and upgrade ==
===== How do I set up VPN for a VEto install OpenVZ? =====See [[VPN via the TUN/TAP device]]
===== What is veth and how do I use it? =====See [[Virtual Ethernet device]]There are two versions of OpenVZ available:
== User Beancounters ======= How can I reset <code>failcnt</code> in <code>/proc/user_beancounters</code>? =====In short — only by stopping * [[Roadmap|stable version]]: OpenVZ legacy (based on RHEL5 and starting a VERHEL6 kernels). In some cases you need to keep VE in a stopped state for a few minutes* [[Roadmap|development version]]: [[Virtuozzo]] Linux distribution based on RHEL7 kernel.
Long answer: there can be many application who reads /proc/user_beancounters, and thus if you will reset it you gonna have problems with those other apps.Consider what happens if you will reset you sent/received packets/bytes statistics on the network interface — programs which reads will be screwed up.So the proper thing to watch for is not the current value of, say, failcnt, but whether it is increased (from the previous reading) or not. You can write a simple shell script to do just that.See [[Quick installation]]
== Troubleshooting ======= My What hardware is supported by OpenVZ kernel crashed. What should I do? =====:See [[When you have an oops]https://hardware.redhat.com/ RHEL Hardware Compatibility List].
===== I see a lot of processes in D state. What does that meanHow existing OpenVZ users can upgrade to the [[Virtuozzo|new version]]? =====: See While there is no in-place upgrade, we prepared [[Processes in D stateUpgrade_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).
Anonymous user
Retrieved from "https://wiki.openvz.org/Special:MobileDiff/1852...23371"