This post discusses configuring Jumbo frames in NSX to enhance VM-to-VM and upstream connectivity. It emphasizes setting MTU values systematically across several components like dvSwitch, Tunnel Endpoints, and VM Guest OS. Proper configuration improves bandwidth but requires careful adjustments to avoid packet loss and operational issues.
In NSX Manager 4.1.x, attempts to update the IDS/IPS signatures failed due to an expired license. The appropriate license, “NSX Firewall with Advanced Thread Prevention,” was added, allowing successful signature updates.
During re-install of my Cloud Director lab, I noticed that the installation of ovftool (officially named OVF Tool) is not documented. Which seems odd to me, because with 2 variants at hand, it should. In this post I show you how. It’s good to know that ovftool for Linux is Read more…
In November 2022, I wrote a post on my endeavor about installing PowerCLI on my Windows box. I needed PowerCLI 13 ImageBuilder feature, which was the only way to add the USB Network Native Driver for ESXi fling to a custom ESXi ISO image. Check these posts here: PowerCLI 13 Read more…
vCenter raised several alarms because its /storage/log partition was full. The errors were: Find the large logs Logging into the vCenter appliance using SSH is a good starting point for troubleshooting. When searching for the largest file in the /storage/log partition it showed: Of the files listed above, the updatemgr-vmon.log.stderr Read more…
When logging into my Lab vCenter the other day, I noticed one of my lab hosts showed an red “ESXi Host Certificate Status” alarm. That was the case because the host was 5 years connected to vCenter and therefore the hosts certificate was expired. Luckily fixing the Host Certificate Status Read more…
Many enterprises and service providers use Fortinet products like FortiGate, often running them as a VM’s. If running them virtually on vSphere, what are the current supported versions? FortiOS supported vSphere versions The vSphere 8 support status for FortiGate appliances in VM factor (including the pay-as-you-go variant) was until recently Read more…
Once in a while new hardware is released that makes a difference. Such a device is the Intel Optane series of high-performance SSD’s for professional use, which was released in late 2017. In this case I’m talking about the Intel Optane P4800X and P5800X and their consumer counterparts (900P and Read more…
You may recognize this. You’ve updated your ESXi hosts via vSphere Lifecycle Manager (vLCM) or similar method, the host rebooted during remediation and… that’s it. Your host is not reachable anymore. That happened to my lab server last week, while updating it to the latest ESXi 8.0 patch release. So Read more…
NSX 4.0 onwards only supports vSphere 7 and later. In my homelab I’m still running ESXi 6.7 which is joined to a vCenter 8 instance. It’s because the RAID controller in my host is unsupported in ESXi 7+ and no native drivers are available. Running an older ESXi version is Read more…