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Troubleshooting

ESXi

How to quickly find NSX-V KB85070 affected ESXi hosts

Introduction If you have worked or are working with NSX for vSphere (NSX-V) like me you are probably aware of the known bug that is present on some olders versions of NSX-V. Even the VMware Interoperability Matrix has a remark on this on all versions. The bug I am talking Read more…

By Bryan van Eeden, 2 monthsApril 24, 2023 ago
VMware

How to fix the Single-Sign On issue in the VMware Cloud Director 10.3.3 update

Introduction Last week VMware has release VMware Cloud Director (VCD) 10.3.3. After a small wait from the previous 10.3.2a version but this version was the one I was lingering for! This release would have fixed a lot of the operational issues we have on the environment, which I will post Read more…

By Bryan van Eeden, 1 yearApril 20, 2022 ago
ESXi

Nested ESXi 7 interoperability with ESXi 6.7

The nested ESXi appliances that William Lam provides to the community are great resources for testing. But what about interoperability? Can you run a nested ESXi 7 VM on a ESXi 6.7 server? Unfortunately the answer is; it depends. We can’t all be early adopters right? I currently work in Read more…

By Rudolf Kleijwegt, 1 yearApril 14, 2022 ago
ESXi

How to recover from deleted VM files

Recently I found my self having to recover a VM that had most of it’s files deleted. They were removed by a script that was intended to clean up a staging datastore. Unfortunately the VM in question was left on that staging datastore and the script did it’s magic. The Read more…

By Rudolf Kleijwegt, 1 yearJanuary 25, 2022 ago
Troubleshooting

Using localcli on ESXi for troubleshooting

Just a small ESXi Pro tip this time. I recently had a host that was experiencing issues and the management services were unresponsive. This is a major problem for troubleshooting as the esxcli commandset won’t work anymore at this stage. Now by accident I came across a tip from the Read more…

By Rudolf Kleijwegt, 3 yearsApril 28, 2020 ago
Troubleshooting

How to fix Veeam VM replication error ‘The given key was not present in the dictionary.’

Recently I’ve been getting an error on one of my replication jobs in one of our Veeam environments. The error message was a bit vague, and to be honest, I’ve never seen it anywhere behore. The error message was: If you browse to your log file location, usually under: You Read more…

By Bryan van Eeden, 3 yearsJanuary 4, 2020 ago
Microsoft

VMCI Sockets bug and missing MSR partition prevents VSS-aware backup (fixed)

Recently I had to do just that when a customer I recently on-boarded to our vSphere platform was having issues creating a VSS-aware backup. Even a quiesced snapshot command failed with an error. This issue took quite some time to investigate. And I was lucky enough to have a support Read more…

By Rudolf Kleijwegt, 4 yearsOctober 8, 2019 ago
Troubleshooting

How to shrink VCSA logical volumes before an upgrade

I found that especially when you migrate Windows vCenter servers to the VCSA you might end up with a deployment size that is less than optimal. Some people say; don’t worry, it’s just thin provisioned. But I’m an old-school guy and I like to keep things neat and simple. The Read more…

By Rudolf Kleijwegt, 4 yearsAugust 26, 2019 ago
Troubleshooting

Remediating Host with ESXi 6.5 VUM “The host returns esxupdate error code:15 error

The other day I was patching a couple of hosts on one of our environments. All worked out fine until I got one host that refused to update from vSphere ESXi 6.5 U1 to ESXi 6.5 U3. Throughout the day this host actually gave me loads of different errors. In Read more…

By Bryan van Eeden, 4 yearsAugust 2, 2019 ago
PowerCLI

Slow boot times ESXi with (p/v)RDM’s easy fix

Recently we have been having (extremely) slow boot times for a couple of hosts that we’ve been using for a new customer. We actually didn’t really notice this in the beginning, until we added hosts to the existing cluster and the reboot for that host took over 3 hours! The Read more…

By Bryan van Eeden, 4 yearsJuly 26, 2019 ago

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Recent Posts
  • How to quickly find NSX-V KB85070 affected ESXi hosts
  • How to fix the new VMware Cloud Director 10.4.x bug that crashes your cells
  • How to fix VUM not updating ESXi hosts due to old UserVars advanced settings
  • How to fix VMware Cloud Director 10.4.x bug that slingshots VM’s across clusters
  • How to fix a vCenter 6.7 to 7.0 U3h upgrade failure
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