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 …

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 …

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 …

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 …

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 …

How to fix an expired VCSA Machine SSL certificate with a bugged vmware-eam service

Recently we’ve had some weird issues on one of our customers vCenter Servers. For starters the vMotion and Storage vMotion features weren’t working anymore because of time-outs. Which is weird and something I’ve never seen before. So we started troubleshooting the VCSA server and noticed that it couldn’t retrieve the …