[SOLVED] Random access speed slowdown in Nested Proxmox

[Proxfan2025]

Hi.
Please take a look at the image comparison first. I ran Crystaldiskmark on a bare metal Proxmox and a nested Proxmox. The storage random access speed is clearly lower on the nested.
What could be the cause of this? I imagine it is the block size.
Memory cache is set to "none". Any Idea?

 

[Proxfan2025]

Well, I've temporarily stopped considering nested VMs. Now I know PVE already has good user management, so I'll try grouping & tagging without nested virtualization. Thanks.