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I want to exclude external hard drives from TM back ups, but can't add them to the list. I store 16TB data on EHDs which I don't want backed up to TM. How can I exclude them, i.e. add to the list of discs to exclude?
iMac 24″, macOS 15.1
Are you sure they are being backed up? If you can't add them to the Exclusion list, maybe they aren't being backed up.
Thanks Barney, I have now excluded all the EHDs through preferences etc. fine once I followed through carefully. I have four EHDs, backed up outside Time Machine, all I need to do is to back up the Mac and the relatively small amount of work I do on it as such, just a bit of admin really. I’ve connected a 3TB EHD as Time Machine, but I get a message that it doesn’t have enough space. So I erased it, encrypted it and reconnected, same message. Perhaps I’ve confused it! I’ll try later and see what it says then. Meantime thanks again for your input.
time machine exclusions
