WilliamLam.com

Incorrect guestOS type for Nested ESXi causes vCLS issues with VMware Cloud Foundation (VCF) Holodeck Toolkit

by // Leave a Comment

Several months back, I started noticing an increase number of folks reporting problems powering on their vSphere Cluster Services (vCLS) VM when using the VMware Cloud Foundation (VCF) Holodeck Toolkit solution and the following workaround can be applied, which came directly from the Holodeck developers.

While a workaround exists including vCLS script located at C:\VLC\VLC-Holo-Site-1\vclsfix, it was very puzzling because this seems to only happen with the Nested ESXi VMs and the VCF Holodeck Toolkit and it was NOT observed when deploying a regular Nested ESXi environment, but I never took a closer look to see why that might be.

A few weeks back, I recieved an email from Mike Foley (former vSphere HA and vCLS PM), I came to learn the reason folks using the VCF Holodeck Toolkit was seeing this problem and it was specific to that solution due to how the guestOS was configured for the Nested ESXi VMs.

[Read more...]

Quick Tip - vSphere 7.0 Update 3o also supports disabling/enabling vSphere Cluster Services (vCLS) in vSphere UI

by // 2 Comments

I recently shared that in vSphere 8.0 Update, you can now easily manage the vSphere Cluster Services (vCLS) configuration by using either the vSphere UI or a new vSphere API, which simplifies this operation if you need to disable vCLS for a particular vSphere Cluster or if you need to remediate one by disabling and re-enabling the feature. Today, the process is less than ideal as you need to add a new vCenter Server Advanced Setting for each vSphere Cluster that you want to disable vCLS on.

For customers still on vSphere 7.x, I just found out from our vCLS Engineering team, that the latest vSphere 7.0 Update 3o, which was just released less than 24 hours ago, also includes this enhancement for managing vCLS configuration (enable/disable) using the vSphere UI!


One thing to note is that the new vSphere API that was introduced in vSphere 8.0 Update 2 to manage this exact same vCLS setting is not available in vSphere 7.0 Update 3o. If you wish to automate this configuration for vSphere 7.x environment, you will need to add the required vCenter Server Advanced Setting using the vSphere API.

Easily disable vSphere Cluster Services (vCLS) using UI/API in vSphere 8.0 Update 2

by // 5 Comments

As shared on Twitter/X yesterday, I just learned that we have made it much easier to disable (as well as enable) the vSphere Cluster Services (vCLS) using the vSphere UI and API in the upcoming vSphere 8.0 Update 2 release. vCLS is enabled by default when a new vSphere Cluster is created and is required for vSphere DRS functionality but there may be scenarios where you are not using vSphere DRS or if you need to perform some clean up, one easy way is to simply disable and re-enable the vCLS service

The current method today for disabling vCLS is by putting a vSphere Cluster into what is called Retreat Mode, which involves adding a new vCenter Server Advanced Setting that contains the Managed Object Reference (MoRef ID) of the vSphere Cluster that you wish to disable vCLS on. If that sounds a bit complicated, it certainly can be and this needs to be done for each and every vSphere Cluster that you wish to disable vCLS, which can add an additional operational overhead.

[Read more...]