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?

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