1.If need to reduce the VMFSL partition size for VMware ESXI, Need to add the option “systemMediaSize=min” by pressing “Shift+O” when installing the ESXI.

This is not working for ESXI 9.0, the VMFSL  size is default.

Related VMware document:

https://knowledge.broadcom.com/external/article?legacyId=81166

https://williamlam.com/2020/05/changing-the-default-size-of-the-esx-osdata-volume-in-esxi-7-0.html

Related Video: https://www.youtube.com/watch?v=qUgOwMheJcE

Before Revised:

After Revised: