Thanks for the insight. Based on that I found the fstrim command for xfs file systems.
http://xfs.org/index.php/FITRIM/discard Anyone had experiences using the this command with RBD image backends? ~jpr On 04/15/2014 02:00 PM, Kyle Bader wrote: >> I'm assuming Ceph/RBD doesn't have any direct awareness of this since >> the file system doesn't traditionally have a "give back blocks" >> operation to the block device. Is there anything special RBD does in >> this case that communicates the release of the Ceph storage back to the >> pool? > VMs running a 3.2+ kernel (iirc) can "give back blocks" by issuing TRIM. > > http://wiki.qemu.org/Features/QED/Trim > _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
