Error when adding ESX host to cluster - vSAN Disks Validation on the ESXI Host(s) failed. ESXi Host xxxxx has 3 different SSD disk sizes, only 2 are allowed.

Products

• VMware SDDC Manager

Issue/Introduction

When attempting to add an ESX host to a cluster, the workflow fails at the task "Validate vSAN disks for ESXi Host(s)".

The error message presented is "vSAN Disks Validation on the ESXI Host(s) failed. ESXi Host xxxxx has 3 different SSD disk sizes, only 2 are allowed", where xxxxx is the ESX host fqdn.

The remediation message presented is "Make sure that ESXi Hosts disks are eligible for use by vSAN.

Environment

VCF 5.x

Cause

The ESX host being added has 3 different disk sizes, there is a constraint in VCF that prevents this - only 2 different disk sizes are allowed.

Resolution

Please contact Broadcom Support to assist with implementing the work around.