This blog post is not about the L1 Terminal Fault (L1TF -> VMware KB56931) but about the HTAware Mitigation tool version ( that seems to have issues when used on single hosts (instead of clusters) – here is the problem that I have observed.

You run the command:

Set-HTAwareMitigationConfig -VMhostName <hostname> -Enable

Followed by

Get-HTAwareMitigationConfig -VMhostName <hostname>

Get-HTAwareMitigationConfig not working on single host


As you might see the “Set-HTAwareMitigationConfig -VMhostname <hostname>” command doesn’t seem to do anything!

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I recently wanted to make sure that my lab environment was on the latest VCSA version (Platform Service Controller and vCenter) so I went to the VAMI interface on my PSC and quickly discovered that there were no updates – that’s was strange because my PSC was at build 8217866 (build and according to the vSphere version list KB2143838 there has been released some newer versions Continue reading