High ICA download time when using static VDI on azure

High ICA download time when using static VDI on azure

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Article ID: CTX463458

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Updated On:

Description

ICA file download takes longer time than expected on citrix cloud workspace .
VDIs hosted in Azure .

Resolution

  • Set Auto-scale capacity to 100% for Peak hrs. 
  • Set Peak hrs. using auto-scale before users logs in . 
  • Edit the Delivery group property AutomaticPowerOnForAssignedDuringPeak to True.
  • Set-BrokerDesktopGroup -Name xxx -AutomaticPowerOnForAssignedDuringPeak $True
Note: This will make all static VDIs in delivery group powered on in Azure during assigned peak hours . Please consider the cost before implementation .

Remote powershell SDKs can be used to manage citrix DaaS environment
https://docs.citrix.com/en-us/citrix-daas/sdk-api.html

Problem Cause

In Azure , MCS machines gets deleted as it is on-demand provisioning , if the user clicks to launch machine in workspace, it then powers on during launch request after user clicks on thier respective desktop in workspace . After that it registers, prepare itself for incoming session request and then ICA file gets downloaded. This process sometimes can take upto 4-5 minutes , hence the delay . 

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