Citrix Provisioning Services Failover: Myth Busted!
For a long time if you asked many experts in the field how long it takes for a Provisioning Services (PVS) server to failover, many would have cited an old case study where it took 8 minutes to failover approximately 1500 VMs. This was quite long ago and much has changed over the years so we wanted to see if failover time still plays a part in PVS server sizing. In this post, I’ll be sharing lessons learned from recent testing that shows scaling out PVS servers because of high failover time is a thing of the past. I will be covering all this assuming you have an understanding of PVS, if not you can check out the eDocs and the Virtual Desktop Handbook to read up.
In order to test failover times, an environment with 1000 Windows 8.1 x64 target devices running the PVS 7.1 target software was used. In accordance with Citrix best practices, the Windows 8.1 image was optimized as per CTX140375. Environment details are summarized at the end of the post.
There were three scenarios run to determine failover time. These tests were run first to determine failover time as a factor of the number of target devices and then as a factor of registry changes as specified in CTX119223. The three scenarios are listed below:
Read the entire article here, Citrix Provisioning Services Failover: Myth Busted!