Hi All, Our product (FS + block storage) uses FUSE to trap the filesystem calls. So, If I mount the filesystem on compute node then this way I can receive filesystem related calls also the IOs provided that I donot have cinder. But, this way I cannot trap/receive snapshot related calls. My question are, 1. How I can trap snapshot related calls? 2. Is cinder (volume driver) the only way? 3. Can I use loop devices? Thanks, Darshan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20141103/92340e41/attachment.html>