Hi,Jason: As discussed last time,After setting conf_rbd_qos_bps_limit, the speed of discard is also limited, which can make operation such as mkfs.xfs very slow, though we can add -K option to solve this problem, but we can't make sure that other operation or application never call discard interface, so if the discard operation can be not limited by conf_rbd_qos_bps_limit option, and if so, is there any other risk? Thanks. Beset Regards, LiuGangbiao _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx