Planet Hypervisor

Changes to Hotfixes and Maintenance for XenServer Releases

XenServer (XS) is changing as a product with more aggressive release cycles as well as the recent introduction of both Current Release (CR) and Long Term Service Release (LTSR) options. Citrix recently announced changes to the way XenServer updates (hotfixes) will be regulated and this article summarizes the way these will be dealt with looking forward. To first define a few terms and clarify some points, the CR model is intended for those who always want to install the latest and greatest versions, and these are being targeted for roughly quarterly releases. The LTSR model is primarily intended for installations that...

Mapping metod of solution on system of boolean equations tasks of type 23 && advanced Z(k) approach for tasks of type 18

Consider  following sample testing Demo of EGE 2016 Solution via building basic diagram and generated table via mapping has been setup Next sample ¬A => (Z(30) => ¬Z(20)) A + ( ¬Z(30) + ¬Z(20)) ¬(Z(30)Z(20)) +A (Z(30)Z(20)) => A 30 = 11110 v 20= 10100 —————— Result = 11110 =30 A(max) = 30 Advertisements

From the Field: XenServer 7.X Pool Upgrades, Part 2: Updates and Aftermath

The XenServer upgrade process with XenServer 7 can be a bit more involved than with past upgrades, particularly if upgrading from a version prior to 7.0. In this series I’ll discuss various approaches to upgrading XS pools to 7.X and some of the issues you might encounter during the process based on my experiences in the field. Part 1 dealt with some of the preliminary actions needed to be taken into consideration and the planning process, as well as the case for a clean installation. You can go back and review it here. Part 2 deals with the alternative, namely a...

From the Field: XenServer 7.X Pool Upgrades, Part 1: Background Information and Clean Install

The XenServer upgrade process with XenServer 7 can be a bit more involved than with past upgrades, particularly if upgrading from a version prior to 7.0. In this series I’ll discuss various approaches to upgrading XenServer (XS) pools to 7.X and some of the issues you might encounter during the process based on my experiences in the field. Part 1 deals with some of the preliminary actions that need to be taken into consideration and the planning process, as well as the case for a clean installation. Part 2 deals with the alternative, namely a true in-place upgrade procedure, and what issues may...

Solution of one system of equations in boolean variables having style like x1 => x2 => … =>x6=1 && y1 => y2 => … =>y6 =1 && x1 => y1 via Mapping method

Original system looks like :- x1 => x2 => x3 => x4 => x5 => x6 =1 y1 => y2 => y3 => y4 => y5 => y6 =1 x1 => y1 =1 Down here we follow approach originally developed in http://www.loiro.ru/files/news/news_943_etodotobrajeniya-mea-2013-10.pdf Build basic diagram and define function F( ) to apply Mapping method suggested  […]

XenServer 7.2 now available!

Hello XenServer community! The XenServer team is proud to announce the release of version 7.2, which includes an array of improvements that further simplify and refine the user experience and enable even greater platform management scalability. Click here to learn more about the new features available in XenServer 7.2. See you on the XenServer page on Citrix.com! Andy M.  

Google Summer of Code 2017 with Bazel

This year Bazel has given me an invaluable opportunity to work with them as a Google Summer of Code 2017 participant and I am very excited to share this information. I will be working on project titled “Code completion for .bzl files” under guidance of Mr. Laurent Le Brun. The aim is to create a standalone […]

Solution of one system of equations in boolean variables via bitmasks in regards of training for Unified State Examination in Informatics (Russia)

In brief, bitmasks are supposed to be a core tool for solution of systems of equations in Boolean variables versus method suggested at https://inf-ege.sdamgia.ru/test?theme=264 for task 11 which is pretty much similar to sample been analyzed bellow ************************************* Original task looks like :- ************************************* Determine total number of corteges {x1,…,x9,y1,….,y9} which and only which satisfy […]

Creating backups with XenServer

Backup is an essential part of the business workflow for many of our customers - be it SMB, Enterprise Server Virtualisation or Virtual Desktop Infrastructure. Making the backup experience smoother is high up on our wishlist at XenServer Engineering and the delivery of improved VM import/export performance in XS 7.1 shows our commitment to that end. To continue improving our services supporting the backup ecosystem, we would like to better understand how you use backup with XenServer   How often do you backup? Do you have multiple jobs for monthly, weekly, daily backups? How do you create your backups? Use VM Export to backup...

XenCenter 7.1 update now available!

A hotfix (XS71E001) has been released for customers using XenCenter as the management console for their XenServer 7.1 virtual environments.  This hotfix offers improvements in XenCenter UI responsiveness, as well as several fixes associated with host health check analysis, status reports and updates. Additional information pertaining to this hotfix can be found here. As always, we encourage customers read the hotfix release notes and install the hotfix to avoid any of the issues described in the notes.