Find VM NUMA locality with PowerShell

When working with NUMA we’d like to be able to monitor how much of the VMs memory is coming from the local NUMA node. In ESXTOP you can find the value by going to the Memory page, enable the NUMA counters and look at N%L for example. What I was missing for my environment was a daily quick view on how the VMs N%L … [Read more...]

Same EVC level, still no VMotion

To save on Microsoft SQL licenses, we decided to merge two VMware Clusters into one. The clusters were in different vCenters and the source Cluster was running ESXi 6.5u2 and the target cluster was ESXi 6.5u1. Both clusters were at the same Westmere EVC Level but a Cross vCenter VMotion failed with “The target … [Read more...]

Bluetooth Mouse stuttering in Windows 10

As you read in my previous post, I’ve made the switch to Windows 10 from OSX and was running into some issue with my Wifi. Now, a few weeks later I switched my cable mouse to a new nice Bluetooth mouse, the Logitech MX Master 2S. Although it is a really nice mouse to work with, with long battery life, I was … [Read more...]

DELL XPS 13 – 9365 and network disconnect in sleep mode

Recently I got a new Dell XPS 13 – 9365 and I truly love the machine. The display is very crisp at 3200 pixels wide, the tough screen is awesome and it is a very light machine. There was just one thing, one very annoying thing…. Every time I get up from my desk to talk to someone or get a coffee and lock my … [Read more...]

Datacenter Migration with VEEAM Backup & Replication and PowerShell

For new customers we often need to migrate their virtual machines from their datacenter into our datacenter. We use VEEAM Backup & Replication for this because it offers us the ability to pre-sync the VMs a few days before the migration and on the day of the migration it self, the last data sync is very short and … [Read more...]

vCenter appliance database issue

Recently I had an issue in my homelab environment. Because of some power outages, my vCenter Appliance hadn’t been shutdown correctly and now vCenter didn’t start correctly anymore. After some searching I found that the database could not be loaded. In the VMware KBs I couldn’t find anything that … [Read more...]

VIB requires VSAN 6.0.0-2.34 but the requirement cannot be satisfied within the ImageProfile

Today I tried to upgrade my ESXi hosts to ESXi 6.0 Update 2. Since it is just a home lab booted from USB and I don’t use update manager, the easiest way for me is to update using the downloaded ZIP bundle. In my SSH session I ran: esxcli software vib update … [Read more...]

Authentication server returned unexpected error: ns0:RequestFailed

Was fighting a strange logon issue with vSphere 5.5 SSO. After configuring SSO against Active Directory and testing logins with the temporary user account handed to me by the customer, all was fine. But when I had the customer test with their own account, he couldn’t login and received the following message … [Read more...]

Cisco UCS firmware update bug

Just ran into a Cisco UCS bug. When upgrading the UCS firmware of your environment, some B200M4 blades may reboot spontaniously. I won’t tell you how I found out, but be sure to read this article: Cisco Bug: CSCut61527 – B200M4 could reboot on shallow_chkpt when BMC returns invalid FRU … [Read more...]