vSphere Web Client (Flash) no longer works with Firefox after upgrading from vCenter 6.0 to 6.5

We’ve just finished upgrading VMWare infrastructure from version 6.0 to version 6.5 and we’ve noticed that vSphere Web Client (Flash) is not working anymore with Firefox. After accessing vCenter IP Address, we select vSphere Web Client (Flash) as in the screenshot and we are getting the following error: “Error: Error #2134at com.vmware.flexutil.logging::StorageObjectWriter/initialize()at com.vmware.flexutil.logging::StorageObjectWriter$/getInstanceByName()at com.vmware.flexutil.logging::LocalStoreTarget/initialize() at com.vmware.flexutil.logging::LogManager$/addTarget()at com.vmware.flexutil.logging::LogManager$/addConfiguration()at com.vmware.flexutil.logging::LogManager$/onConfigLoaded()at ConfigurationLoader/onLoadSuccess()at flash.events::EventDispatcher/dispatchEvent()at flash.net::URLLoader/onComplete()” Our Firefox version is 70.0.1. The solution is pretty

How to add a USB Disk as VMFS Datastore in ESXi 6.7

After some time using VMWare Workstation as a playground for my VM home lab environment, and after learning and testing with VM ESXi Hosts, I decided that is time to move to a hardware lab. So I achieved, for the start, 2 servers for the ESXi hosts, and because there is no HDD on the servers, I have installed the ESXi software on an USB Stick. For the storage I

How to enable EVC (Enhanced vMotion Compatibility) on VMWare cluster v6.0

In today’s post we’ll see what is EVC, in which case is needed and how we can enable it on VMWare cluster. What is EVC Let’s see first what is EVC – source VMWare: EVC stands for Enhanced vMotion Compatibility. This is a vCenter cluster feature which simplifies vMotion compatibility issues across CPU generations. EVC automatically configures server CPUs with Intel FlexMigration or AMD-V Extended Migration technologies to be compatible

VMWare: vCenter 6.5 Upgrade Fails with VIX error

I had to upgrade vCenter from 6.0 to 6.5. It’s not the first one, I made a few recently cause we have a client with many sites that should be upgraded. Everything was good prepared or at least I was thinking so and I was ready to start. In the evening, after the working hours as it was planned, I’ve started and quite soon, at the 3rd step of stage

How to enable execution of PowerShell scripts and enable VMWare vSphere PowerCLI.

As a System Administrator, you can reduce sometimes a considerably amount of time by running PowerShell scripts across your Windows Systems. Most of the scripts that you find online will not run if you haven’t configured previously PowerShell, and will throw you an unpleasant error in red fonts.My Windows is in German, so the error could look even scarier. As you can see, my problem is with VMWare vSphere PowerCLI

VMWARE: How to reset a VM via SSH

Working with VMWare it’s a continues challenge, with new surprises every day, but fortunately, so far, only with happy endings. Let’s see today’s story. I am working for a client that has a vCenter with 6 ESXi hosts. In order to access it, I have to start a VPN, then connect to a Windows terminal server via RDP and from this machine again via RDP to another Windows terminal server.

VMWare Update Manager Error – VCSA 6.5: Host cannot download files from VMWare vSphere Update Manager patch store

After upgarding VCSA to version 6.5 at one of my clients, I’ve tried to upgrade also the ESXi Hosts. I’ve made the Baselines in VUM and attached them to the hosts. So far everything went smooth. After that I’ve scanned the hosts for updates and this is the moment when the error came up: “Host cannot download files from VMware vSphere Update Manager patch store.  Check the network connectivity and

Importing OVA into VCSA 6.5 fails – The operation failed for an unknown reason

I’ve experienced a problem while importing an OVA into VCSA 6.5. The error that I’ve got is the one bellow. As you can see it says that the problem occurs due to certificates that the browser does not trust. If you are checking the certificate in the web browser, you will see a certificate warning. The solution found is actually quite simple. You have to download the VMCA root certificates

Add a SD Card in VMWorkstation

Why I need to do this?! Because I’ve made a backup of a RPi’s SD Card to a Linux VM and now I would like to restore the created image file back to the SD Card. For the moment I’m doing this only to see how should be made, my RPi still works very good, but is always good to be prepared in case something goes wrong. Before starting the