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esxi

Networking NSX VMware

Configure Jumbo frame support in NSX

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.

By Daniël Zuthof, 4 monthsJanuary 20, 2025 ago
vCenter log disk errors
Homelab Linux VMware vSphere

vSphere Tidbits: vCenter Log partion full due to vLCM

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…

By Daniël Zuthof, 1 year ago
ESXi Host Certificate Status
Homelab VMware vSphere

vSphere Tidbits: Fix ESXi Host Certificate Status alarm

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…

By Daniël Zuthof, 1 year ago
Homelab Networking Security VMware vSphere

FortiGate support overview for vSphere

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…

By Daniël Zuthof, 2 years ago
Homelab Networking VMware vSphere

Fixing missing NIC drivers for ESXi hosts

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…

By Daniël Zuthof, 2 years ago
VMware NSX
Homelab Networking NSX VMware vSphere

Deploy NSX 4.x Edge nodes on unsupported vSphere

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…

By Daniël Zuthof, 2 years ago
Homelab Security VMware vSphere

Update VMware Tools package on ESXi

In most cases VMware Tools are available as part of the ESXi installation. When updating or upgrading vSphere on an ESXi host, the VMware Tools could be updated, but most of the time not to the latest version. In this post I’ll show you how ESXi hosts can updated to Read more…

By Daniël Zuthof, 2 years ago
Homelab VMware vSphere

Manually updating ESXi Hosts

How to manual update you ESXi host with the latest VMware patches.

By Daniël Zuthof, 2 years ago
Homelab Networking VMware vSphere

ESXi 8 on the Maxtang NUC

My latest homelab addition is the Maxtang NX6412 NUC which was given by VMware, together with Cohesity (many thanks!) at VMware Explore EU (in the US co-sponsored by NetApp) to all vExperts who registered for the gift. After adding RAM and a SATA SSD, it was time it ran vSphere Read more…

By Daniël Zuthof, 2 years ago
Homelab PowerCLI PowerShell VMware vSphere

Create ESXi 8 Customized ISO Installer

Once and a while ESXi needs to be installed on a device of which the drivers (NIC / Storage) are not built into the ISO installer (yet). In my case it’s needed for the vExpert homelab Maxtang NUC device. This device has a Realtek PCIe NIC’s not supported by ESXi Read more…

By Daniël Zuthof, 2 years ago

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