Install ESXi (6.7) on a host with a 1-core CPU

Usually installing ESXi (since 5.0) on a host with just one CPU core will simply fail. If you only have a single CPU core then the installation terminates with the following error: CPU_CORES_ERROR: Your machine has [1] cpu core(s) which is less than recommended [2] cpu cores. Since I have a server in my lab with just one core ( why? good question ๐Ÿ™‚ ) I needed to get myself a workaround in order to get ESXi installed in my lab environment. (more…)

NSX-v backup retention script

The NSX-v manager is not being backed up via snapshot-based backups. This isn’t officially supported. Therefore a file/configuration based backup method used to backup the configuration of your NSX manager periodically.

Unfortunately, there is no retention setting available in the NSX manager so if you are not careful the backup directory will grow in a rapid fashion and fill up your disk very fast. Via this easy script I’ve written, you can enable backup retention for your NSX-v backup files. (more…)

Creating an LACP LAG on a Ubiquiti UniFi switch for Synology NAS

Currently, I am moving my in-house lab to my garage. I installed a cabinet in the garage, bought a new Ubiquiti 24 ports switch which functions as a layer 2 switch inside of the cabinet.

My Synology is now connected to a LAG interface on my 16 Ports Layer 3 switch. Since I’m planning to move all of my hardware to my cabinet in the garage I also need to move the Synology, connect it to the UniFi switch and create a LAG again.

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Project ‘moving Lab to garage’

A couple of years ago I started my lab by buying just one server and play around with it, deploying OSes, testing software and that kind of things. Over the years a lot more hardware has been added to the lab in order to be able to test all kind of scenarios and types of deployments like Disaster Recovery, Cross-site NSX, vSAN (Stretched Clusters), multi vCenter deployments, metro clusters.. you name it!ย  (more…)