VMware vCenter Orchestrator (vCO) installation ‘gotchas’

I needed a portable vCO lab environment, so I quickly installed the vCenter Server appliance, a ESXi host and the vCO appliance (5.5.2) on top of my notebook with VMware workstation. For different reasons (mostly releated to my small lab setup) I had a bunch of problems during the setup of the vCO appliance, which […]

Trendmicro Deep Security: Filterdriver for vSphere 5.5 Update Manager

It seems that Trendmicro has no updated package of the filterdrivers for Deep Security with vShield Endpoint for vSphere 5.5. At least the zip package you can download from the official site is for vSphere 5.0. The VIB file which is contained within this package works fine with 5.5 and is also supported according to […]

vCNS: Empty Summary Page

I recently performed an vSphere Upgrade to 5.5 including vShield Manager / vCNS. Before I started with the vShield Manager Upgrade I wanted to check the status of the Endpoint service on the ESXi Hosts. If you select a host within vShield Manager and navigate to the summary tab you normally see the status of […]

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 🙂 ). […]