Hi, RBD has had support for sparse allocation for some time now. However, when using an RBD volume as a virtual disk for a virtual machine, the RBD volume will inevitably grow until it reaches its actual nominal size, even if the filesystem in the guest machine never reaches full utilization. Is there some way to reverse this? Like going through the whole image, looking for large consecutive areas of zeroes and just deleting the objects for that area? How about support for TRIM/discard commands used by some modern filesystems? Guido _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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