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I am using Time Machine to backup an external HDD (A) (2 TB) linked to my computer to an external 6 TB HDD drive.
I now had to shift the data from HDD (A) to a new 3 TB one (B). Is there a way to continue the backup of the data so that Time Machine doesn't think it has to start the backup of (B) from scratch? Does TM automatically detect that the data on the new hard drive (B) are the same as the ones previously backed up on the old hard drive (A)?
Given how flimsy HDD are, I thought this would be a common problem. But I didn't find anything in the questions.