Difference of behavior between virtual disks according to their type HDD, SSD or NVME

[David_MOSIEK]

Hello everyone,

I am wondering if a VM with a virtual HDD disk will concretely behave differently according to its type of virtual disk, HDD, SSD or NVME ?

What does it change for the VM ?

Also, I'm curious to know, if that's not a secret, how those differences are implemented in VMWare Workstation or ESXI.

Have a nice day,

Yours,

David MOSIEK.

IT teacher

[reptw144]

Hello,

Things could behave differently. Are you experiencing a bottleneck? SSDs are always better than HDDs in terms of performance. The vmdk file runs on one of those types of disks, so it should impact performance.

What can affect performance in the data center? By the way, is the host where your vmdk resides full-flash, hybrid-flash, or fully mechanical?

You can also manually configure Shares and Limit - IOPS or select a VM storage policy. The storage policies in certain storage environments determine how the virtual machine storage objects are provisioned and allocated within the storage resource to guarantee the required level of service.

Reference:

https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-resource-management/GUID-7686FEC3-1FAC-4DA7-B6...

Hope this is helpful!

Kind regards!