RM Logo
Technical Rating: 
Support Home PageSupport
Print This PagePrint This Page
Add to 'My Library' Add to 'My Library'

How to patch and reboot Hyper-V hosts with Windows Updates
Published Date : 16 May 2017   Last Updated : 01 Oct 2018   Content Ref: TEC5697304  





Procedure

This article provides an overview of applying Windows® Updates to your Hyper-V hosts and rebooting them so that you can maintain the security of the Hosts as well as the VMs (virtual machines).

For both scenarios described below you should plan the appropriate downtime and communicate this to your user base.

The Hyper-V infrastructure is mainly classified into standalone hosts and clustered hosts. Depending on your infrastructure, please follow the procedures below:

Identify whether the host is clustered or not:

  • Check for the presence of Cluster Service.
    1. Log on to the Hyper-V host and select Services.
    2. Check for Cluster Service being present.

If the Cluster Service is not present, the Hyper-V host is standalone, so please follow the 'Patching standalone Hyper-V Hosts' section below.

If the Cluster Service is present, the Hyper-V host is a node in a failover cluster. Follow the 'Patching clustered Hyper-V hosts' section below.

Note: ALL RM installed multi-host setups will have CAU - Cluster Aware Updating - enabled.

Patching standalone Hyper-V hosts
The patches are configured to "Notify for download and auto install" only. You will need to check Windows Update on the host monthly, download and install the updates and manually reboot the host to complete the patch installation. If this is the only Hyper-V host in the site and the primary domain controller is virtualised, then you will need to select a suitable time to perform the reboot (as there will be downtime for your users).

Reboot standalone host:

  1. RDP to the Hyper-V host.
  2. Run Server Manager, Tools, Hyper-V Manager.
  3. Shut down each virtual machine in a controlled manner.
  4. Now run Windows Update on the host and download and install the available updates. 
  5. Reboot the Hyper-V host.
  6. After the reboot, open Hyper-V Manager and power on each virtual machine, starting with your domain controller(s).

Patching clustered Hyper-V hosts
Clustered Hyper-V hosts are CAU (Cluster Aware Updating) enabled and Windows Update patches the host as per the default RM schedule (Saturday at 18:00hrs). A manual reboot of the host is necessary to complete the patch installation. To reboot a clustered host:
Note: Reboot only one Hyper-V host in the cluster at a time.

  1. RDP to the Hyper-V host.
  2. Run Server Manager, Tools, Failover Cluster Manager, Nodes.
  3. Right-click the Hyper-V host and select Pause, Drain Roles (this will live migrate all virtual computers on the Hyper-V host to another node in the cluster. You will need to ensure that you have sufficient resources on the other node(s) to support this).
  4. Reboot the Hyper-V host.
  5. After the reboot, open Failover Cluster Manager, Nodes.
  6. Right-click the host and select Resume, Fail Roles Back.

Repeat steps 1 to 6 above for each of your Hyper-V hosts.



FEEDBACK
Did the information in this article help answer your question?
 Yes
 No
Please add any comments about this article in the box below. If you answered No then it is important you tell us why so that we can change the article if required. We can only respond if you log in to the RM Support website or provide your contact details. Note: If you need help with a technical query, please log a call online or telephone our support team.
Thank you for your feedback, which is sent directly to the RM Knowledge team. We address every message received with the intention of improving our Knowledge Library articles. If you have an unresolved technical issue, please contact RM Support.


If this article has not helped provide a solution then it is also possible to log a call...



Document Keywords: reboot Hyper-V hosts, Windows Updates, Hyper-V, Hyper V, patch, patch creation


Please read - important disclaimer information.
http://www.rm.com/_RMVirtual/Includes/csredirect.asp?cref=&title=Standard Content Disclaimer


Top Of PageTop of page