Relocating VM’s with “vDS host error: see faultCause” issues

Introduction The other day I was trying to move a couple of virtual machines on one of our environments and I faced some awesome general system errors! Great. I’ve seen these before and figured I’d write this in a quick blogpost this time around. The error message I faced from …

How to resolve a VMware vCenter Server PSC convergence failure

The other day I had to converge a couple of vCenters to an embedded Platform Services Controller (PSC) configuration, because we updated all the vCenter’s and since VMware is moving away from the External PSC configuration. In the release we are running (most current 6.7 U3 release) VMware has a …

Virtual Machine BootTime property is not being populated

Ever so often you come around something that you haven’t seen before. Well this issue is one of those things. In our environments we use loads of metrics and properties that we gather from the vCenter Server and expose them to the customer in our own custom front-end portal. One …

How to: Fix vMotion issues because of Emulex driver logging

Recently I was troubleshooting an environment that had some weird issues regarding the centralized VMware Tools repository that we configured. I will not bore you with these details, they will get explained in a future blogpost. But I also had some issues regarding vMotion on this environment. At first I …

VMSA-2020-0006 / CVE-2020-3952 Demo PoC

The 14th of April I wrote about the recently released VMware Security Advisory (VMSA) VMSA-2020-0006 also known under its CVE name by CVE-2020-3952. At the time of writing that blogpost there weren’t any Proof of Concepts (PoC’s) available to show us what kind of information could be obtained through abusing …

Security update: VMSA-2020-0006 / CVE-2020-3952

The 9th of April VMware issued a new VMware Security Advisory (VMSA) VMSA-2020-0006. This Security Advisory discusses CVE-2020-3952 in length. The vulnerability received a CVSSv3 score of 10 out of 10. Which means this is a very serious security issue. This also means you should patch your vCenter Server environment …

vSphere 7.0 completely transforms VMware’s portfolio!

Introduction vSphere 7.0 with Kubernetes is going to be released soon! The announcement just went live today during the “Modern Apps Virtual Event”. A couple of weeks ago I followed multiple sessions regarding the new VMware and vSphere product releases and updates and witnessed all its beauty. Today the NDA …

How to fix: vSphere VUM: GUI error that prevents upgrades!

If you, as a vSphere Administrator, regularly update a vSphere environment you should be using vSphere Update Manager. vSphere Update Manager is the tooling that VMware made so that you don’t have to install patches through the command line on each host, or do updates on each host separately! And …

How to shrink VCSA logical volumes before an upgrade

I found that especially when you migrate Windows vCenter servers to the VCSA you might end up with a deployment size that is less than optimal. Some people say; don’t worry, it’s just thin provisioned. But I’m an old-school guy and I like to keep things neat and simple. The …

How to fix an expired VCSA Machine SSL certificate with a bugged vmware-eam service

Recently we’ve had some weird issues on one of our customers vCenter Servers. For starters the vMotion and Storage vMotion features weren’t working anymore because of time-outs. Which is weird and something I’ve never seen before. So we started troubleshooting the VCSA server and noticed that it couldn’t retrieve the …