Virtio-SCSI and DISCARD with KVM

Hey all, at first thanks for providing such a nice environment to manage vservers! :-)

I have one question regarding a KVM instance: I would like to use the virtio scsi driver instead of ide/virtio and also setup discard='unmap' on the virtual disk, but I dont see how this can be done inside CloudMin.

Is this possible?

I plan to deploy sparse disk images and want to use fstrim inside the guest to keep those images sparse.

Thanks in advance!

Best regards, Simon

EDIT: I found a way to do it through manual config hacking: Open up /etc/webmin/servers/xxx.serv Set if for disk to none and add an id and discard=unmap:

Add required scsi device through the kvm args

Restart through cloudmin panel