I plan to enable inline data compaction but the volume already has large amuont of data. Does data compaction act on the existing data?
See The Solution
Okay, turns out, with ONTAP 9.1 this command (in advanced privilege) will compact existing data:
cluster::*> volume efficiency start -vserver <svm> -volume <volume> -scan-old-data true -compaction true
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It is inline process, activated whilst data is being written to the storage system, so will have no effect on already stored data:
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