[SOLVED] SCSI vs VirtIO Block

[ju4nj3]

Hello everyone,

Please, could you someone explain this?

https://pve.proxmox.com/wiki/Qemu/KVM_Virtual_Machines







VIRTIO BLOCK






Thank you,
Juan

 

[Stoiko Ivanov]

please post the complete config of the VM

 

[LnxBil]

please post the complete config of the VM

What he meant is the 'Options' tab as well. There you configure the SCSI controller type.

 

[ju4nj3]

Hi, thank you for your replies.

Both machines match except its controller disk type.

Some further investigation with CrystalDiskMark throw similar results.

SCSI



bootdisk: scsi0
cores: 2
cpu: host
ide2: local:iso/virtio-win-0.1.141.iso,media=cdrom,size=309208K
memory: 8192
name: vps1
net0: virtio,bridge=vmbr0
numa: 0
ostype: l26
scsi0: local:101/vm-101-disk-0.raw,size=100G
scsihw: virtio-scsi-pci
smbios1: uuid=6b5ed530-6e41-4b05-9c77-41aa39c353d1
sockets: 2
vmgenid: 26ef9267-7c06-45db-8022-a3d5ea9a0fac


VirtIO Block



bootdisk: virtio0
cores: 2
cpu: host
ide2: local:iso/virtio-win-0.1.141.iso,media=cdrom,size=309208K
memory: 8192
name: vps2
net0: virtio,bridge=vmbr0
numa: 0
ostype: l26
scsihw: virtio-scsi-pci
smbios1: uuid=f5ae8711-6dec-461d-b099-366844fc3de7
sockets: 2
virtio0: local:102/vm-102-disk-0.raw,size=100G
vmgenid: d986b906-59a6-4b9a-8850-99a2a94700a7

So... at some point Novabench score is wrong.

Juan

 

[Stoiko Ivanov]

Given that the difference is roughly 1:10, it could be that NovaBench simply has an error in converting Bytes/s to MB/s (ignoring a decimal-point)

 

[ju4nj3]

Thank you very much Stoiko!

Best regards.

 

[Stoiko Ivanov]

You're welcome! - please mark the thread as solved - that way other users know what to expect!

 

[ju4nj3]

Excuse me Stoiko, can't see the option 'Mark this thread as solved' on Thread Tools.

 

[sb-jw]

Edit the first post and mark it as Solved.

 

[ju4nj3]

Excuse me sb-jw, there is no option to mark it as Solved editing the first post.