I’m trying out “The Big Mean Folder Machine” version 2.29 to consolidate (or “merge”) various years of photo cruft. The process of culling and consolidation will hopefully allow me to have a single photo directory backed up to Amazon Glacial forever. I believe as I mentioned in another post, mechanical disks fail so having a redundant and offsite backup strategy is crucial. And certainly a key part of of this is limiting the number of places you’re storing your local data so that you can create redundancy.
I’ll write more here when I get all this data and drives sorted out, but so far I was able to run a scan and it the BMFM was able to create a folder hierarchy from multiple drives. I may need to do some merges first and then a split.