Forum Discussion
Azure Virtual Desktop (AVD) | Scaling plans and Autoscaling
Please verify documentation here: https://docs.microsoft.com/en-us/azure/virtual-desktop/autoscale-scaling-plan., which came with slight delay. When searching the table of contents for autoscale you will find additional articles how to use diagnostics and FAQ
Ensure your review limitations and ensure you have the custom RBAC role set-up :)!
evasse That makes no sense, an example:
Host pool with 10 hosts x10 sessions = 100 sessions max.
Ramp up starts @ 8AM
Ramp up capacity treshold is 60%
Hosts at start ramp up is 40%
In this case @ 8AM, 4 hosts (40%) will be active and max 40 people can login. Based on the docs and what you're saying, no more hosts will be started, because we never hit 60% (=60 sessions) of total capacity.
If I'm mistaken, please elaborate where my logic is flawed.
Robert Folkers To my understanding the threshold of 60% means the actual user sessions / all user sessions on the currently running VMs.
Robert Folkers You're logic is right. I had the same problem but now looking at the json (log) it is not the total hostpool capacity but it is the percentage of the current running hosts. So if 5 hosts are running with 10 sessions per host, in my opinion, it calculates the percentage of the current sessions and if that is above the percentage of in this case max 50 sessions, it will power up machines so the percentage will be below your percentage.
robbie64 Thanks for verifying this!
- The next VM will be started when the 61st session is requested. Based on the inputs when 40 sessions are on active in that host pool there is no need to start additional VMs.
