Blog HPE
21. January 2022

How to Update HPE NC550SFP 2.x Firmware

For the next Home Lab update, I decided to increase my network infrastructure to 10Gbit. For this, I picked out VMware 7.0 U3 compatible HPE NC550SFP CNAs for a small amount of money. However, these were at a firmware level beyond the Stone Age and were not recognized by either the HPE DL380p Gen8 or ML310e Gen8 v2 and I had no link. So I […]

Basic Tutorials Blog
20. January 2022

How to Check a file with MD5 or SHA-256 Checksum on Windows

When downloading files for patching or drivers you may need to verify the file is complete.  This can be done by verifying the MD5 checksum from the steps below on your PC. 1. Open the Windows command line. Press Windows + R, type cmd and press Enter. 2. Go to the folder that contains the file whose MD5 checksum you want to check and verify. Command: […]

Blog VMware
18. January 2022

VMware ESXi 6.7 Upgrade to 7.0 (and 8.0) – Missing dependencies VIBs Error

In this project we had a stack consisting of 3 individual VMware ESXi 5.5 servers. These are the Cisco UCS C240M4S2 model with Intel XEON v3 CPUs. As mentioned earlier, 09/18/2020 was considered End of Support for ESXi 5.5 and so most are now forced to update their environments to the latest version. First we check via VMware Compatibility Guide if the hardware component, BIOS […]

Advanced Tutorials Blog
17. January 2022

UniFi Network – How to Install and Update via APT on Debian or Ubuntu

Welcome to a short tutorial on how to keep your Unifi controllers up to date. Please do not forget to make a backup of your Unifi machine before each update. If you don’t have root rights you have to use sudo for every command! 1. Install required packages before you begin with the following command: 2. Use the following command to add a new source list: 3. Add […]

Blog VMware
13. January 2022

How to export an ESXi 5.5 VM for Restore

In case you don’t have a backup solution in your home labs but also surprisingly in your company. I would like to show you a backup variant for your VMs. Please note that a backup is necessary in the home lab as well as in the company for long-term data consistency. This is by no means a professional backup solution but intended for the case […]

Home Lab Stage V
6. January 2022

irgNET – LAB 5.0 U2

I wish you all a happy new year and would also like to start with a Home Lab update. Between the last and this update nothing has changed on the hardware-site, but on the software level. Two very interesting VMware products were added: VMware vRealize Automation VMware Horizon Together with my colleague Manuel Billmaier, we run a hyperconverged solution from Dell called VxRail at Computacenter, […]

Home Lab Stage V
13. December 2021

irgNET – LAB 5.0 U1

Welcome to Update 1 of the major Update 5. In this episode, we now separate Site A from Site B completely with fire sections. Nevertheless, both data centers are connected via Fritz PowerLine adapters over the internal power grid. An honest opinion on my part: PowerLine adapters are not suitable for data center throughputs, since I can’t get more than 25 Mbit/s – however – […]

Blog VMware
6. December 2021

Home Lab Nomination by VMware vSAN

On Saturday my Home Lab was nominated by VMware vSAN and posted on their twitter page, something like that makes you proud after all. BIG THANKS to VMware 🙂 That’s just the beginning of a great Adventure.

Home Lab Stage V
3. December 2021

irgNET – LAB 5.0

Welcome to the 4th major update of my home lab. In this update I’ve changed the HPE Microserver Gen8 against a HP ML310e Gen8 v2, because it can have 32 GB of Memory and it contains Intel XEON E-v3 CPU just like my DL380 Gen8 servers. In this constellation I have migrated the Veeam Backup VM to the new host, plugged in the external 2 […]

Blog VMware
1. December 2021

Error 500 after upgrading VMware vCenter to 7.0.2.00200

I tried to update my ESXi hosts after updating to ESXi 7.0 U2 with build 17867351, but I received the following error message: After reviewing the logs and restarting the vCenter, I found no solution until I became aware of this Knowledge Base article from VMware, which subsequently solved my problem. To fix this error message, the VMware Update Manager database of the vCenter must […]