Wednesday, 23 July 2025

VMware vSphere Version 9 – Configuration Maximums

 

Today we got into a conversation about VMFS datastores and the question was:

In vSphere version 9, what is the version of VMFS and will it allow a VMFS datastore of greater than 64TB?

I had a think, and then thought, “do you know what, I’ve never checked.”

When I did my very first VCP man years ago, I had to memorise the Configuration Maximums guide, fortunately now, that is not a requirement.

But if I’m being asked questions, it’s good to know where to look.

To answer the question:

The version of VMFS is still version 6, and the maximum Datastore is 64TB.

Where did I get this information? I got it from the VMware

https://configmax.broadcom.com/home

However, here’s the disclaimer (thanks VMware)

Guide to Config Max

The View Limits tab provides the information of configuration maximum limits of the selected VMware products for a specific version.

The Compare Limits tab enables you to compare the configuration maximums limits between two versions of the same VMware products.

Disclaimer:

The limits can be affected by other factors, such as hardware dependencies.

For more information about the supported hardware, refer to the corresponding hardware compatibility guide.

It might not be possible to maximize all configuration settings and expect your desired outcome.

To ensure that you do not exceed supported configurations for your environment, consult individual solution limits.

The recommended configuration limits do not represent the theoretical possibilities of your product.