YAMS – Yet Another Migration Script

I was asked if I could write a script that could be used for moving VMs to another data center location. Sounds easy right? Well, there were some specific requirements that made it a bit more challenging… Downtime for the VMs should be kept to a minimum. Some clusters re-use…

Migrating Windows PSC to VCSA – failed to send HTTP data

I was working on a migration to get rid of a vCenter/PSC running on a Windows server. So I started the VMware Migration Assistant on the PSC that I wanted to migrate. Then I started the vCenter Server Appliance Installer on a different Windows server and filled in the configuration…

Upgrading ESXi 6.0 hosts with PowerCLI

The last step in my migration project was to actually upgrade the hosts to a supported version. This means that all hosts are upgraded to 6.7 except for those hosts that are a bit to old and only support 6.5. For the upgrade, I used Update Manager to store the…

Migrating ESXi Hosts to Another vCenter Server

As part of a migration project, ESXi hosts needed to be migrated to a new vCenter appliance. The Cisco 1000v distributed virtual switch was stripped out and converted to standard switches. So basically it was a matter of disconnecting, and removing the hosts from the old vCenter and adding them…

Building a lab – recurring issues

As I am preparing for an exam (VCAP Network Virtualization Deployment) is started a rebuild of my lab. During this process, I encountered several issues. With this post I keep track of all the issues and solutions. Keep in mind that I try to write them down in the order…

vCenter Update Manager gives error status 404 in IE 11

I was working in my home lab testing a migration of hosts from vCenter 6 (Windows) to the 6.7 VCSA. The steps outlined in the article “How to move ESXi/ESX host from one vCenter Server to another” (1004775) worked flawless but for some reason Update Manager didn’t work… I tried…

It’s official!! vExpert 2019

A couple months ago I applied for the VMware vExpert Program. I had to show them I share my knowledge and always try to help others. And also be an evangelist for VMware and its solutions. Yesterday I got a confirmation email that I had been added to the program!…

Find a datastore or RDM by LUN ID

Sometimes the storage team wants to clean up their LUNs but they only know the LUN ID. And they ask you, the ESXi admin, where that LUN is used… Not an easy question if you don’t have an administration of your LUNs. You can use the UI and do some…