VM Spanning or Storage Pool

Hello,

When creating VMs are you combining disks using Disk Management Spanning or Server Manager Storage Pools?

Data usage, random fileserver data

Excluded boot OS, this is a basic separate disk.

I'm reading that dynamic disk is obsolete and storage pools should be used. But is this relevant for VMs when storage is managed via hardware RAID e.g. SAN, Fibre attached etc

Thank you,

Leo.