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!
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.
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…)
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! (more…)
Currently i’m running my home lab environment on three physical Intel NUC devices. ESXi 6.5 is installed on each one of the NUCs and they are running a vSAN cluster (two M2 SSD inside each NUC, one for cache and the other for the capacity tier). Each NUC comes with 32 GB memory and a Intel(R) Core(TM) i5-6260U CPU @ 1.80GHz installed as well. Due to the fact that the Intel NUCs are just not flexible enough for me to test certain scenarios I decided to expand my existing lab environment.