VMware Update Manager

Updating your hosts with VMware Update Manager

Last Updated 23rd November 2021

Objective

VMware Update Manager allows you to keep your hosts up to date by installing Bug Fixes and Security Patches without intervention from our team.

vCenter updates or major updates will still require our involvement.

This guide will present the Update Manager functionalities

Requirements

Instructions

Maintenance Mode

Before working on a host, you'll need to put it in maintenance mode.

Indeed, patching often requires a restart of the host and would impact your live VMs.

With that in mind, in the vSphere interface menu, go to the Hosts and Clusters dashboard.

Maintenance

On the left side, find your host and right-click on it.
In the Maintenance Mode section, select Enter Maintenance Mode.

Maintenance

Make sure the box in the following window is checked and click OK.

Maintenance

Assuming DRS is implemented, any live VM will be moved.

If you customized your environment, you may have to manually move live VMs from your host before putting it in Maintenance Mode.

You may see the following warning:

Maintenance

Your host is now showing in maintenance mode.

Maintenance

Update Manager

Select your host and go to the Update tab.

You can see a summary of what is set and its compliance.
Before trusting what is shown, let's set the baseline against which compliance will be checked.

Update

In the Attached Baselines section, click on Attach then Attach Baseline or Baseline Group.

Update

There are predefined Baselines which are the recommended patching level for your hosts depending on criticality of the updates.

We'll be using the Critical Patches in this example but you can either use or create your own baselines. You can also apply several baselines to cover different scopes for a same host.

Select the required baseline and click Attach.

Update

Now, the compliance summary may look very different than it used to.

Update

Back in the Attached Baselines section, check the box to select all assigned baselines and click on Remediate.

Update

Select the host and click on Remediate again.

Update

The updating process starts and will last for a while. Your host will restart if needed.

Update

Once the process has gone through, the compliance check will happen again (you can force it by clicking on the check compliance link) and you will see a green checkmark on the Compliance level.

Update

Your host is now fully up-to-date.

Don't forget to get it out of Maintenance Mode and it will be back in production.

Go further

Join our community of users on https://community.ovh.com/en/.


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