Hi,
src-image is 1GB (provisioned size). I did the following 3 tests.
1. rbd export src-image - | rbd import - dst-image
2. rbd export --export-format 2 src-image - | rbd import --export-format 2 - dst-image
3. rbd export --export-format 2 src-image - | rbd import - dst-image
With #1 and #2, dst-image size (rbd info) is the same as src-image, which is expected.
With #3, dst-image size (rbd info) is close to used size (rbd du), not the provisioned
size of src-image. I'm not sure if this image is actually useable when write into it.
The questions is that, is #3 not supposed to be used at all?
I checked doc, didn't see something like "--export-format 2 has to be used for
importing the image which is exported with --export-format 2 option".
Any comments?
Thanks!
Tony
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