Introduction

This article is a summary of the top support articles related to updating, install and migration of Citrix environments including Controllers and VDA. The most commonly used support articles and guides are below. 

There are three main areas covered in this summary including Controller upgrades and adding new controllers to sites,  mIgrating the site to a new database as well as VDA install and update content. 

We would strongly advise that all customers follow the detailed upgrade and migration steps outlined in our product documentation before proceeding with any of the below support articles. 

Upgrade a deployment - Upgrade Procedure

Top Support Knowledge Content

Upgrading Controllers and Sites

• CTX459938 - Citrix Studio Mandatory Upgrade

• CTX462378 - "Re enter the Controller address or enter a new address" opening Studio.

Databases: Configuration, Migration and Scripts

• CTX280675 - Migrate Citrix databases to new database SQL server (cluster, Always On or Mirroring)

• CTX558936 - Migrate Citrix Virtual Apps and Desktop databases to a new SQL server

• CTX231029 - Broken database connection for a Citrix XenApp/XenDesktop Controller Service

• CTX127998 - Database Access and Permission Model for XenDesktop

• CTX284751 - SQLLocalDB event ID 512

• CTX218357 - Virtual Apps/Desktops: How to reconfigure DB connection strings in DDC during a failed upgrade.

• CTX225347 - How to evict a DDC using TSQL

Upgrading\Installing VDA

• CTX209255 - VDA Cleanup Utility Tool

• CTX215798 - VDA Software Installation Failed with Error 1603: "Could not open key”

• CTX297141 - VDA upgrade failure when deployed through SCCM

• CTX278869 - Virtual apps and desktops - 1912/2203 - Citrix Infrastructure / OS upgrade

Tools and Resources

• VDA Cleanup Utility 

(Starting with Version 2003, the VDA has a built-in uninstaller)

When errors occur during an upgrade from an earlier version of the VDA, When unexpected behavior or performance is experienced after an upgrade from an earlier VDA. If a VDA upgrade is not possible due to feature incompatibility and a clean uninstall is required. The VDA cleanup utility removes components, files, and registry values of VDA 5.6 and later

• Automated Configuration tool for Virtual Apps and Desktops

This tool is designed to help automate the migration of Virtual Apps and Desktop configuration (such as policies, applications, machine catalogs, and others) from one or more On-Premises site(s) to the Citrix Virtual Apps and Desktop service (CVADs) hosted on Citrix Cloud. It can also be used to migrate information between different Cloud regions or tenants. The migration can be performed in stages by executing the tool multiple times, allowing administrators to easily achieve the desired configuration state.