["Duplication inconsistent" error]

Less than one month into using DP on OWC Thunderbay 6 drive DAS (84T) for single pool, I am getting a "duplication inconsistent" message.  On earlier threads about this issue, I see a recommendation to set "Automatically resolve file duplication mismatches" on but I am unable to find that option in the DP interface - can someone point this out for me?  Any other suggestions to deal with this problem?  Thanks in advance.

 

[Drivepool for external DAS using OWC Thunderbay 6 (72Tb)?]

I'm a newbie here...  having parity issues using Windows Storage Spaces with my external DAS (OWC Thunderbay 6 with 72Tb) that I cannot resolve.  Intend to backup and consider using Drivepool as better solution to create 72Tb pool for my large Video/Photo library.  I have 2 concerns re: Drivepool vs. Storage Spaces before I decide:

• I used parity with Storage Spaces to emulate the protection offered by RAID 5, but understand there is no parity option for Drivepool.  Would file duplication provide a comparable degree of protection from bad drives in the future?
• I do video/photo editing from an XPS15 laptop via Thunderbolt 3 connection to DAS and speeds with Storage Spaces were not always good - will Drivepool be comparable better, or worse in doing intensive I/O work from an external pool?

Thanks in advance for your expertise.