If I use a HD that has other files on it for my back up HD, will the back up process erase other files on the HD? Or make a separate folder for back up ?
iMac 27″, macOS 11.0
If Time Machine needs to reformat the volume, it'll erase other data on it. Otherwise, it'll remain, but your working data and backups should be on separate drives; one may fail at any time.
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Thanks Niel! I went to Best Buy (some distance away from where I live and didn't want to make that trek in the rain) and bought a new WD 2TB external. You are so right. Everything should be clean. Just wanted to know, in a pinch, if one used an external with other files on it, if TM would automatically erase the disc before it backed up your computer. I was considering my G-Tech drive that had 3 TB on it. Thanks again.
Time Machine
