diff --git a/node.sh b/node.sh
index 755843b..3c0e0b0 100755
--- a/node.sh
+++ b/node.sh
@@ -26,6 +26,8 @@ device='nvme0n1'
 mkdir -p /ceph/osd_$device/etc/ceph/ /ceph/osd_$device/var/lib/ceph/bootstrap-osd /ceph/osd_$device/var/lib/ceph/osd
 (docker exec ceph_mon ceph auth get client.bootstrap-osd) > /ceph/osd_$device/var/lib/ceph/bootstrap-osd/ceph.keyring
 (docker exec ceph_mon ceph config generate-minimal-conf) > /ceph/osd_$device/etc/ceph/ceph.conf
+echo -e '\tbdev_enable_discard = true' >> /ceph/osd_$device/etc/ceph/ceph.conf
+echo -e '\tbdev_async_discard = true' >> /ceph/osd_$device/etc/ceph/ceph.conf
 docker run --rm --net=ceph --hostname $(hostname) --privileged -v /ceph/osd_$device/etc/ceph:/etc/ceph -v /ceph/osd_$device/var/lib/ceph:/var/lib/ceph -v /dev:/dev --entrypoint ceph-volume docker.io/ceph/daemon:latest-octopus lvm prepare --bluestore --dmcrypt --data /dev/$device
 rm /ceph/osd_$device/var/lib/ceph/bootstrap-osd/ceph.keyring