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Script to get and set ESXi thumbprint for vSphere Management Assistant

With this simple script you can get and set the ESXi thumbprint on the vSphere Management Assistant. This is necessary starting with vSphere 6, also explained in this knowledge base article: KB2108416

vCPU and logical CPU sizing with Hyper-Threading explained

When sizing virtual machines you should be aware of the number of physical cores available in your ESXi-host and whether or not it has Hyper-Threading enabled. If you blindly follow the number of vCPU's you can add that VMware presents to you, then you could end up with VM's that offer poor performance. If you want to understand Hyper-Threading and why this is important for sizing please read the articles that I have listed at the bottom of this page.


Horizon View Direct-Connection Plugin streamlines configuration

Working with the vSphere 6.0 Web client

Staying safe while manually modifying a VMX file

How vRealize Orchestrator delivers enhanced administrative powers

vRealize Orchestrator workflow to find a workflow by it's ID

When you have the ID of a workflow then how do you find out what the name of the workflow is and where it's located. To simplify this search I have created this workflow.

You can download the workflow here.

This is the code of the scripting element that is used for the search:

Using the Switch element in vRealize Orchestrator

vRealize Orchestrator (v6) contains a switch element that can be used to evaluate a series of values. In scripting and programming languages the switch construct is also named Case or Do Case.

For example if we want to check the status of a VM and there are three possible values then we would have to use three if statements or three decision elements to check what the status is.

if status = poweredOn 
if status = poweredOff 
if status = suspended 

vRealize Orchestrator workflow with approvals and timeout

This workflow demonstrates an approval process whre two approvers will have the opportunity to approve or deny a request and when both approvers don't respond within the time limit then the workflow will continue as if it was approved. So this will actively give the two approvers a time window to deny a request after which it is automatically approved. Is designed to use n AD group for approver 1 and another AD group for approver 2.

Need directions for the VMware certification roadmap?

Advanced Service Designer Change My Password Form

Change the currency setting for vRealize Automation / vCAC

The currency for a vRealize Automation (vCAC) deployment defaults to US Dollar. This can be changed by modifying the Currency Region Name setting. This setting can be found in the Infrastructure tab under Administration - Global Properties.

Various Orchestrator examples

This package contains several examples that I use in Orchestrator training.

download the package here (version February 2020) 

Import the package from the Packages-tab in the Orchestrator client.

What's in the package?

There are several workflows in this package that demonstrate the functionality of vRealize Orchestrator. Their purpose is to educate, comments are always welcome.

vCenter Orchestrator workflows to create and delete snapshots for folder of VMs

These two workflows allow the user to create a snapshot of all virtual machines in a folder and to remove all snapshots of all virtual machines in a folder.

Download the workflows in a package

Workflow to create snapshot of virtual machines in a folder

The Case of the Missing Orchestrator Extension (and how it was solved)

Execute an Orchestrator workflow from a REST client

In this article I explain how to execute a vRealize Orchestrator workflow by invoking a REST method from a REST client. 

Sources used for this article are How to use the REST API to Start a Workflow from and the Orchestrator REST API documentation that you can find on your own Orchestrator server at this url: https://yourvcoserverFQDN:8281/vco/api/docs/index.html

Orchestrator workflow to register ssh public key on an ESXi host

How to troubleshoot VMware vCloud Automation Center issues

VMware Learning Zone video-based training

The VMware Learning Zone is a new subscription-based service that gives you a full year of unlimited, 24/7 access to official VMware video-based training.

Top VMware experts and instructors discuss solutions, provide tips and give advice on a variety of advanced topics. (link)


How to fix a vCenter Appliance No-Networking problem

This problem might occur with your vCenter Server Appliance. But it could also happen with other Linux-servers. It might happen when you move the virtual machine, clone it, restore it, recover it from replication or perform any other action where the MAC Address of the virtual machine changes. This is what you would see on the console of the virtual appliance:

vCenter Appliance No Networking error

vCAC and vCenter Orchestrator workflow to move Virtual Machines to a Resource Pool

This article describes how to create a workflow in vCenter Orchestrator that, when executed from vCAC, moves a provisioned Virtual Machine to a specified Resource Pool. If the Resource Pool does not exist it will be created.


- vCAC Plugin installed in vCO and configured (documentation and download for plugins)

Create your first vRealize Orchestrator Workflow

This article is based on the Java-client in vRealize Orchestrator v6/7. For an updated article that contains the instructions for the HTML-based client in version 7.7 and version 8 click here.

VMware changing vCenter architecture in vSphere 6

VMware releases certification track for NSX platform

Import existing virtual machines in vCloud Automation Center

Virtual machines from an existing vSphere environment can be imported into vCloud Automation Center to manage them from there. You perform this action as an Infrastructure Administrator with a tool named Infrastructure Organizer that you will find under the Infrastructure tab in your vCAC administration portal.

vCloud Automation Center Import virtual machines

Modify the Session Time Out for vCloud Automation Center 6.x

The default timeout value for the vCAC web console is 30 minutes. You might find this not long enough or too long, whatever your reasons are, if you want to change it you can.

Access the vCAC Appliance through SSH (with Putty for example) or access the virtual appliance console directly to modify this file:

for 6.0  /usr/lib/vcac/server/webapps/shell-ui-app/WEB-INF/web.xml

for 6.2  /usr/lib/vcac/server/webapps/vcac/WEB-INF/web.xml

previously rumored hardware initiative Marvin unveiled: introducing EVO:RAIL


Configure vCenter privileges for access to vCenter Operations Manager

After deployment of vCenter Operations Manager there are two users in the system that have access to the entire environment. These are the built-in admin-user of vCops and any user that is assigned to the Administrator role in vCenter. In the image below you can see that there are two privileges assigned in the Administrator role that allow anyone assigned a permission with this role to access vCenter Operations Manager as an administrative user.

How to reset vCenter Operations Manager Configuration to the default settings

It is possible to reset your vCenter Operations Manager configuration to the default settings. This applies to the default policy but also to any other policies that you may have created in your environment. Open the Configuration panel, click the Default Policy or any other policy you would like reset. Next in the Clone from field select Original Defaults and click Ok to save the settings. All configuration settings for that policy are now reset to the default vCops settings.

Free eLearning VMware Log Insight V2 Fundamentals

VMware has released a free on-line training module that walks you though what Log Insight is and how you can configure it.

Free eLearning VMware Log Insight V2 Fundamentals