Hi Albert, to free unused space you must enable trim (or do an fstrim) in the vm - and all things in the storage chain must support this. The normal virtio-driver don't support trim, but if you use scsi-disks with virtio-scsi-driver you can use it. Work well but need some time for huge filesystems.
Udo On 19.05.2016 19:58, Albert Archer wrote: > Hello All. > I am newbie in ceph. and i use jewel release for testing purpose. it > seems every thing is OK, HEALTH_OK , all of OSDs are in UP and IN state. > I create some RBD images (rbd create .... ) and map to some ubuntu > host . > I can read and write data to my volume , but when i delete some content > from volume (e,g some huge files,...), populated capacity of cluster > does not free and None of objects were clean. > what is the problem ??? > > Regards > Albert > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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