Enable Per-Volume Deduplication

Enable deduplication on a single volume.
vol --edit name --size mebibytes [--description text] [--perfpolicy name] [--dedupe_enabled {yes|no}]

Enable volume deduplication.

vol --edit vol1 --size 60 --description TestVol --perfpolicy policy1 --dedupe_enabled yes

Create volume with deduplication enabled.

vol --create vol1 --size 60 --description TestVol --perfpolicy policy1 --dedupe_enabled yes