{"id":125,"date":"2018-09-17T17:40:24","date_gmt":"2018-09-17T15:40:24","guid":{"rendered":"https:\/\/vmoller.dk\/?p=125"},"modified":"2018-09-17T17:46:36","modified_gmt":"2018-09-17T15:46:36","slug":"unable-to-use-htaware-mitigation-tool-on-a-single-esxi-host","status":"publish","type":"post","link":"https:\/\/vmoller.dk\/index.php\/2018\/09\/17\/unable-to-use-htaware-mitigation-tool-on-a-single-esxi-host\/","title":{"rendered":"Unable to use HTAware Mitigation tool on a single ESXi host"},"content":{"rendered":"

This blog post is not about the L1 Terminal Fault (L1TF -> VMware KB56931<\/a>) but about the HTAware Mitigation tool version 1.0.0.9 (HTAwareMitigation-1.0.0.9.zip) that seems to have issues when used on single hosts (instead of clusters) \u2013 here is the problem that I have observed.<\/p>\n

You run the command:<\/p>\n

Set-HTAwareMitigationConfig -VMhostName <hostname> -Enable<\/p><\/blockquote>\n

Followed by<\/p>\n

Get-HTAwareMitigationConfig -VMhostName <hostname><\/p><\/blockquote>\n

\"\"

Get-HTAwareMitigationConfig not working on single host<\/p><\/div>\n

 <\/p>\n

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

<\/p>\n

 <\/p>\n

Therefore, at this moment a quick fix could be setting the value manually under the host advanced settings:
\nVMkernel.Boot.HyperthreadingMitigation = true<\/strong><\/p>\n

\"\"

VMkernel.Boot.HyperthreadingMitigation setting<\/p><\/div>\n

 <\/p>\n

After that\u00a0the Get-HTAwareMitigationConfig can be used to confirm the setting<\/p>\n

\"\"

Get-HTAwareMitigationConfig working!<\/p><\/div>\n

 <\/p>\n

So all there is left now to do: reboot!<\/em><\/p>\n

 <\/p>\n

This settings could be done by various scripting tools – but if you only have a few host the manually way might be the fastest way to go \ud83d\ude42<\/p>\n

Feel free to provide your own fix in the comments section bellow!<\/p>\n","protected":false},"excerpt":{"rendered":"

This blog post is not about the L1 Terminal Fault (L1TF -> VMware KB56931) but about the HTAware Mitigation tool version 1.0.0.9 (HTAwareMitigation-1.0.0.9.zip) that seems to have issues when used on single hosts (instead of clusters) \u2013 here is the problem that I have observed. You run the command: Set-HTAwareMitigationConfig -VMhostName <hostname> -Enable Followed by […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[20,25,6,7],"tags":[23,17,21,4],"class_list":["post-125","post","type-post","status-publish","format-standard","hentry","category-esxi","category-powercli","category-vmware","category-vsphere","tag-esxi","tag-patching","tag-powercli","tag-vsphere"],"_links":{"self":[{"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/posts\/125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/comments?post=125"}],"version-history":[{"count":11,"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/posts\/125\/revisions"}],"predecessor-version":[{"id":139,"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/posts\/125\/revisions\/139"}],"wp:attachment":[{"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/media?parent=125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/categories?post=125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/tags?post=125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}