On 08/11/2015 04:35 PM, Mike Snitzer wrote: > I'll have to defer to the lvm2 developers, I thought we added explicit > logging when lvm2 issues discards (as part of lvremove, etc) -- Peter, > and/or Alasdair? > Yes, we log that like (visible in the verbose -vvv output): "Discarding X extents offset Y sectors on /dev/Z." Also, when removing a volume, we issue this message: # lvremove vg1/lvol0 Do you really want to remove and DISCARD logical volume lvol0? [y/n]: For this, the "devices/issue_discards=1" must be set - it's not by default. -- Peter _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/