It might be a no brainer, but I think this post will save some time for people if they are using the google search engine well. It took me too much time to figure this out for such a simple thing as this.(more…)
Since I passed my VCDX defense back in september this year (2020) I heavily invested in new goods for my homelab. See this blogpost for some detailed hardware information that I’ve chosen for my homelab. Any questions? Please feel free to reach out to me.(more…)
Insufficient locker space while installing ESXi 7.0
During the upgrade of ESXi in my NUC cluster I encountered an error that had something to with available space on the system disk(s). I have my ESXi installed on a USB device because I need to use both internal disks (2) for vSAN when I need it.
To resolve this issue I performed the following steps:
- Download the ESXi Offline Bundle .ZIP
- Logon to the ESXi host with SSH
- Rename the /store folder: # mv /store /store.old
- Remove the /store.old folder: # rm -rf store.old
- Browse to the directory where the ESXi offline bundle is located:
# cd /vmfs/volumes/SYNOLOGY-STORAGE/CIFS\ ISO\ library/VMware/vSphere\ 7.0/
- Perform the update of ESXi via the esxcli:
# esxcli software profile update -d /vmfs/volumes/SYNOLOGY-STORAGE/CIFS\ ISO\ library/VMware/vSphere\ 7.0/VMware-ESXi-7.0.0-15843807-depot.zip -p ESXi-7.0.0-15843807-standard
I hope this is useful for somebody. If there is anything to add or remark, please let me know!
Enable Jumbo Frames on Ubiquiti Unifi Security Gateway (USG)
Everyone who owns an Unifi product is familiar with SDN controller, the UI and how to configure it. When you need Jumbo Frames or MTU sizes above the default of 1500 you need to adjust your configuration. On the Unifi Switches this can easily be done from the controller UI itself. As you can see in the screenshot below (from my own Unifi SDN Controller), you only have to do one-click in order to enable it on the switch. This can be done on all the switches.
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  cpu core(s) which is less than recommended  cpu cores. Since I have a server in my lab with just one core ( why? good question 🙂 ) I needed to get myself a workaround in order to get ESXi installed in my lab environment. (more…)