Currently running ONTAP 188.8.131.52 and have a cifs volume which is currently at 4TB. Due to business reasons upgrading ONTAP is not an available option to us at this moment. In order to allow for further growth on this volume we are looking at disabling dedup ( as it appears we're limited to a 4TB dedup limit ).
My question is this, and so far I have no been able to find a clear answer. In order to grow this volume and disabling cifs do i need to run a df -s and account for the space savings when growing the size of the volume past 4TB. In our case here we're seeing a dedup savings of about 2.2TB. Or does the volume's existing data stay deduped and new data written within the volume simply remain un-deduplicated?