Some time ago I wrote a Blog describing how to upgrade VMware Horizon with Zero downtime, you can fine the blog here.

Recently I have been asked a number of times if this is still the case if customers are using Cloud Pod Architecture for multi-site deployments.

I can confirm that Yes you can upgrade Horizon View with Zero downtime even if the View Pod is part of a Cloud Pod Architecture. There are however a couple of caveats.

First you must upgrade all the View connection brokers on a single site, don’t upgrade half on one site and then start on the second site, make sure all the view connection servers are at the same install version on site 1 before starting on site 2.

Second be aware that any new features that are part of the upgrade will not be available until all connection servers are upgraded across both sites.

To recap the order to upgrade Horizon Cloud Pod Architecture

1. Upgrade all Connection servers on Site one, this can be done with Zero Downtime following the Blog above
2. Upgrade all connection servers on site two, again this can be done with Zero Downtime following the Blog above

For more information you can refer to the product documentation here.