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Quick Tip - How to check if vSAN TRIM/UNMAP is enabled in VMware Cloud on AWS Cluster?

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While the original question was for checking whether a specific VMware Cloud on AWS (VMC-A) cluster has the vSAN TRIIM/UNMAP feature enabled, the solutions below is applicable to any recent vSAN 7.x or 8.x deployment. There are two ways you check, either using the vSphere UI by selecting the cluster and navigating to Configure->vSAN->Services and expanding the Advanced Options tile or simply leveraging PowerCLI and the vSAN API to retrieve the exact same information.

vSphere UI

vSAN API using PowerCLI

$clusterName = "Cluster-1"
$vsanConfigSystem = Get-VsanView -Id VsanVcClusterConfigSystem-vsan-cluster-config-system
$clusterMoRef = (Get-Cluster $clusterName).ExtensionData.MoRef
$vsanConfigSystem.VsanClusterGetConfig($clusterMoRef).unmapConfig

 

Easily retrieve WordPress blog statistics 

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Happy New Year! 🥳

I wanted to kick off the new year with something that I had shared at the end of 2022, which was a break down on the number of blog posts that I have published over the years.

A number of folks had reached out asking how they could do the same for their own blogs and so I wanted to share the solution that I had used.

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ESXi Advanced & Kernel Settings Reference

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Every time I need to recall or reference a specific ESXi Advanced or Kernel Setting for a customer or field inquiry, I typically need to look at a live ESXi host to see whether a given setting is defined for that version of ESXi and also how to access and/or update the settings. Depending on the interface (vSphere API, vSphere UI, ESXCLI, etc.) that you are using, you may only be able to see a subset of these properties.

For example, some ESXi Advanced Settings are only available using the vSphere API/UI while others are available in both the vSphere API/UI and ESXCLI, with the latter being a common utility for customers to view or update these settings. Similarly, for ESXi Kernel Settings, not only are there new options that are introduced with each ESXi release, but being able to easily check the default values and minimums and maximums can also be useful. I should also mention using the vSphere API/UI, you can also accessed the ESXi Kernel Settings which are prefixed with VMkernel.

As a huge VMware Automation person, I was surprised that I had not thought about creating a reference for the ESXi Advanced and Kernel Settings for recent ESXi releases? I figure this would benefit more than just myself and I have put together the following Github repo: https://github.com/lamw/esxi-advanced-and-kernel-settings where you can see all the default ESXi Advanced and Kernel Settings for ESXi releases across 6.0, 6.5, 7.0 and 8.0.


For those interested, this was generated using some PowerCLI automation and below are the two snippets for pulling the ESXi Advanced Settings (supported and runtime values) using the vSphere API and the ESXi Kernel Settings, which I used the ESXCLI interface that is exposed through the PowerCLI Get-EsxCli cmdlet.

UPDATE (08/13/24) - vCenter Server Advanced Settings Reference is now available.

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