How does one safely delete old Time Machine backup files?
I'm trying to find a way to safely delete Time Machine backup files from my external G-RAID hard drive. Time Machine currently keeps hourly backups for the past 24 hours, daily for the past month, and then weekly for all previous months.
It is these previous months where I would like to go back a couple of years and delete most, if not all, of the intra-month backup files, the objective being to reduce backups beyond two years ago to roughly month-end files, eliminating the ones in between.
I started to simply delete the folders for the above-described backups in Finder, but thought better of it, as I'm not sure how Time Machine would react to the missing folders/files. I saw a post that indicated they might get stuck in my Trash bin. Another post suggested deleting the backups from within the Time Machine interface, but I could not figure out how to do that.
Any help would be greatly appreciated.
Thanks,
Scott
iMac 27", macOS 10.14