How to verify if a virtual machine disk is recognized as a Virtual SSD

Products

• VMware vSphere ESXi

Issue/Introduction

This article provides instructions on how to verify whether a virtual machine disk (VMDK) is recognized and configured as a Virtual SSD by the ESXi host.

Environment

VMware ESXi 8.0

Resolution

To determine if a virtual disk is recognized as a Virtual SSD, check the vmware.log file generated during the virtual machine's power-on process.
If the message "identified as Virtual SSD device" is recorded for the target disk (e.g., scsi0:1) in the vmware.log, it indicates that the virtual disk is recognized as a Virtual SSD.

Example output in vmware.log:
yyyy-mm-ddThh:mm:ss.nnnZ In(***) vmx - DISK: OPEN scsi0:1 '/vmfs/volumes/***/***/***.vmdk' persistent R[]
yyyy-mm-ddThh:mm:ss.nnnZ In(***) vmx - DISK: DiskConfigureVirtualSSD:  Disk 'scsi0:1' identified as Virtual SSD device.

Additional Information

To intentionally disable or emulate the Virtual SSD recognition, refer to How to Emulate an SSD Virtual Disk on a Virtual Machine based on SSD lun's/disks.

仮想マシンのディスクが Virtual SSD として認識されているかを確認する方法