It definitely depends. If you use qcow2 files for your disks, they’re a copy-on-write format, which is slower than most file systems inherently. If the host system is also a copy-on-write file system, then it doubles your writes outright.
If you’re using raw disks/partitions, there is minimal overhead that usually comes down to usually miniscule driver differences. Although depending on what the VM platform supports, you might outright lose snapshot/restore support.
It definitely depends. If you use qcow2 files for your disks, they’re a copy-on-write format, which is slower than most file systems inherently. If the host system is also a copy-on-write file system, then it doubles your writes outright.
If you’re using raw disks/partitions, there is minimal overhead that usually comes down to usually miniscule driver differences. Although depending on what the VM platform supports, you might outright lose snapshot/restore support.
Yeah I’m running ZFS with raw disks, and most things are in containers anyways, just a few VMs for Windows or stuff that doesn’t like containers.