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
[email protected]
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
