Hi there,
According to the official man page:
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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