On Wed, Dec 23, 2015 at 10:29:04AM +0100, Wido den Hollander wrote:
This allows user to use the volume wiping functionality of the libvirt storage driver.
All data from the volume will be wiped by calling rbd_discard() in chunks of the underlying object and stripe size inside Ceph.
This will ensure all data is zeroed and leaves the user with a completely empty volume ready for use again.
Based on the name 'rbd_discard' it sounds like this is going to call TRIM/DISCARD on the underlying storage too ? If so, then I don't think that this is an appropriate approach for this API. The virStorageVolWipe API should clear the data, *without* having any effect on the storage of the API - ie we don't want to discard underling storage blocks as a side effect Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|