Resending commands I’m using to everyone. # rbd-fuse -p pool -r image /mnt/trim/ # losetup /dev/loop0 /mnt/trim/image # kpartx -av /dev/loop0 # mount /dev/mapper/loop0p1 /mnt/fstrim/ # fstrim -v /mnt/fstrim/ /mnt/fstrim/: 1.1 TiB (1167710830592 bytes) trimmed I don’t use qemu, kvm. Anyone can help with this? On 11 May 2015, at 14:26, Edgaras Lukoševičius <edgaras.lukosevicius@xxxxxxxxx> wrote: > Hello, > > I have ceph pool (size=2) and three RBD images (2TB each) and I have noticed, that deleting data does not reclaim data on ceph. > What I have done is mount RBD device as a loopback device loop0, mounted it to a filesystem, ran “fstrim” and got response: > > /mnt/fstrim/: 1.1 TiB (1167710830592 bytes) trimmed > /mnt/fstrim/: 1 TiB (1125871489024 bytes) trimmed > /mnt/fstrim/: 1.1 TiB (1186485440512 bytes) trimmed > > Now that would be almost perfect if not the fact, that space was not reclaimed on ceph itself. Using “ceph osd df” I still see same usage even after waiting few hours and I don’t see any action. > > I’m using ceph v0.94-2 and kernel 3.10 > > What is the proper way to reclaim unused space? I had pool size 3, but had to lower it to two, to avoid getting my OSDs full. > > Thanks. -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
