VMware updates the Horizon Cloud with On-Premises Infrastructure software components periodically to include new features and bug fixes. VMware typically updates the in-cloud management environment on a weekly basis and updates the Horizon Cloud Node software components on a roughly quarterly basis. The normal update process takes place without incurring any system downtime.
An update affects the following components.
Horizon Cloud environment, running in the cloud.
On-premises Horizon Cloud Node software, running in a hyper-converged appliance, such as VxRail or vSAN Ready Node.
VMware agents used in the master images
On-Premises Horizon Cloud Node Software Updates
The Horizon Cloud Node software update process is performed in the following stages.
Downloading new software, an automatic process
Scheduling the update
Migrating to the new version
The first stage, downloading new software, takes place when a new version of software is available. Horizon Cloud triggers the Horizon Air Link appliance to download the new version of the software. The Horizon Air Link appliance builds an inactive parallel environment. This stage is transparent to you and does not cause any downtime.
When the first stage finishes, the Administration Console signifies that an update is available.
To check the update availability for a Horizon Cloud Node, select and click a node. If an update is available, an on-screen message describing the update appears next to the software version number.
The second stage, scheduling the update, occurs between you and the VMware Operations team. Arrange a convenient time for the update to take place. Typically, the update itself, or the migration from the existing version to the new version, takes about five minutes. As a best practice, schedule the update at a time when the environment is least busy. After the update is scheduled, the Administration Console displays the scheduled time in a top banner. To reschedule the update, contact VMware Operations.
The third stage, migration to the new version, takes place at the scheduled time, at which point, VMware Operations trigger the migration. The process takes around five minutes to complete, and migrates the data and configuration from the running environment to the new environment. During the migration, the following rules apply.
You cannot perform administrative tasks or log in to the Administration Console.
Any end users attempting to connect to desktops cannot do so.
End users with connected desktop sessions can continue to use their systems without any downtime.
When the update finishes, you can log back in to the Administration Console. To see the software version currently running, selectand click a node. The page displays the current software version running. Click the software version number to see associated release information.
You can now update the guest operating system agents.
After a Horizon Cloud Node update, the old environment remains in the system in a powered-off state in case rollback is needed. The old powered-off environment is automatically deleted after 30 days.