Hi there, According to the official man page: http://docs.ceph.com/docs/jewel/man/8/rbd/ export-diff [–from-snap snap-name] [–whole-object] (image-spec | snap-spec) dest-path Exports an incremental diff for an image to dest path (use - for stdout). If an initial snapshot is specified, only changes since that snapshot are included; otherwise, any regions of the image that contain data are included. So if initial snapshot is NOT specified, then: rbd export-diff image@snap1 will diff all data to snap1. this cmd equals to : rbd export image@snap1. Is my understand right or not??
Thanks Zhongyan
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