Once upon a time, Fabian Deutsch <fdeut...@redhat.com> said: > I'm not sure which qemu disk drivers/busses support this, but at least virtio > does so. > I'm using it for development.
Using CentOS 7, I think qemu-kvm only supports discard on virtio-scsi drives using the raw format. Discard on qcow2 images is supported for newer versions of qemu-kvm. oVirt uses virtio by default; you can switch to virtio-scsi. However, if you use thin-provisioned disks, oVirt uses qcow2 format, so discard is not supported with CentOS 7's version of qemu-kvm. -- Chris Adams <c...@cmadams.net> _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users