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Huge CIFS snapshots after dedupe

acistmedical
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Somehow our CIFS snapshots get huge after dedupe.

For example, if i dont run dedpue for a week, my snaps are few hundred mb each, i take them twice a day, noon and midnight.

However, when i run dedupe, it somehow increases the size of a last snap. i just run full dedupe (took 6 h), my last snap was 230mb befrore the dedupe, the same snap is now 70Gb, after the dedupe had run.

Also, if i schedule dedupe to run at 11 and then run snap at 12 the snap is way bigger than if there is no dedupe scheduled at all.

Whats going on??

The same things happens on both controllers.

BTW, im running full dedupe on another CIFS volume now and i can actually see the last snap growing as dedupe progresses. It was 124Mb before i started, then i checked it at 39% of dedupe, it was 21Gb, now at 45% of dedupe  its grew to 26Gb.

what the ???????

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