A Microsoft file hosting and synchronization service.
Thanks for the quick reply.
That's actually my point however. If I deleted files on one of the computers without realizing it, I'll lose them on all storage locations.
I think the best way for me to do this is to get a big external drive, copy separate device/cloud files to it in separate folders, then get a product like AllWaySync and sync them additively. Then I can distribute that to all sources and turn OneDrive sync back on.
You have the OneDrive recycle bin and OneDrive File History to rescue a file deleted or modified by mistake. You have to monitor your recycle bins.
If I had to go to all my devices to delete a file then that would be inconvenient.
You can make backups periodically of all your cloud data for longer-term storage.