Hi, In order to reclaim space in Ceph you will need to use the discard feature of KRBD:
https://www.sebastien-han.fr/blog/2015/01/26/ceph-and-krbd-discard/ Kind regards, Caspar 2018-03-14 10:34 GMT+01:00 Mostafa Hamdy Abo El-Maty El-Giar < mostafaha...@mans.edu.eg>: > Hi , > > I found some thing strange in ceph. The actual stored data in mounted rbd > image is 156 G . > /dev/rbd0p1 985G 156G 779G 17% /mnt > > When I run ceph -s , I see the actual data is 316 GB. > > pgmap v27446382: 1024 pgs, 1 pools, 316 GB data, 81742 objects > 952 GB used, 44145 GB / 45098 GB avail > > also when I write some thing on the mount rbd and then remove it the > available space seen true in the mounted rbd , but with ceph -s command the > data become larger and can not see the data is removed. > > I understand the replication, I mean the actual data without replication. > When I remove some data , the ceph cluster can not see the new size of data > and does not change the data size. > > Please , any help in this problem. > > Thank you > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >
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