Veeam B&R v8: Watch out if you are using public IP addresses

During the last month, I implemented Veeam v8 for two big shops. It happened that both customer using public IPv4 addresses for all servers and so of course also the Veeam Server. In the first project I noticed directly the session log of the backup jobs, which included the info text “Network traffic will be […]

Storage vMotion: Invailid configuration for device ’12’

During one of my latest vSphere projects I came across a strange error message. In a brand new vSphere 5.5 environment I added a existing VM from a datastore, which was also connected to the old vSphere 4.1 environment. Previously the VM for sure got shutdown from the old environment. When I tried to storage […]

How to fake a VMs guest OS CPUID

For the most software products the license verification is done with license keys. During my time in the IT I have also seen some products, where the license is tied to the underlying hardware of your server. Mostly this is realized with license files, which include the ID of your CPU. The application checks if […]

VMware VCAP5-DCA exam tips

Meanwhile it´s already 5 months ago that I passed the VCAP5-DCA exam. There are already so many exam experience posts out there, that I will keep this one quite short and just want to outline 3 strategies that helped me a lot, which you may not find in all of the other posts: 1.)    Use […]

Nested ESXi – VALIDATE_HOST_HW ERROR: vendor VIB for HP found, but host is VMware, Inc

During the last couple of months I noticed more and more people got to my blog by searching for a term like „vendor vib for hp found but host is vmware”. This error message during the installation of a nested ESXi host was discussed in the comment section of my article vSphere 5.1: Quick Start […]

Disk consolidation: Unable to access file

Last week a customer called me with a strange behavior of some VMs. He noticed that his backup software (HP Data Protector) left snapshots on some VMs. After he manually removed it, he got the message “Virtual machine disk consolidation is needed”. Starting the consolidation process always ended up with the pop-up you can see […]

VMUG Germany – Schwalbach / 07.06.2013

I just signed up for the upcoming VMUG in Schwalbach (Germany) on 07.06.2013. Most sessions are focused on security and there are some great speakers like Bas Raayman and Holger Daube. The EMC² office seems also to be a great place for a VMUG (not only because I just have to travel 2km 🙂 ). […]

VMware vExpert 2013

Last week VMware announced the list of vExperts for 2013. I still can´t believe it, but my name is on that list!! It feels awesome to be part of this exclusive part of the VMware community and I´m really looking forward to the upcoming time in this group. There are already so many blog posts […]

VMware VCAP5-DCD exam experience

Yesterday I passed the VCAP5 Datacenter Design exam and want to share my thoughts and study ressources with you in this post. This was by the way my first VCAP exam and of course I knew this would be a real challenge and I didn´t got disappointed 🙂 If you read some other exam experience […]

Voting for the top VMware & virtualization blogs 2013 opened

Today Eric Siebert started the annual voting for the top VMware & virtualization blogs on his blog Eric is doing a great job for the community to put so much effort in this voting every year and his vLauchpad is a great resource for many people. The fact that my blog got also listed […]