Use Time Machine to backup external drive
Hi,
I'm trying to use Time Machine to backup my Mac and my external drive (LaCie 2TB HDD) where all my photos are stored. When I look at the settings under "exclude these items.." my external hard drive is there and grayed out, meaning it won't be part om the Time Machine and I can't change it.
Are there any solutions for this problem?
iMac 27″ 5K, macOS 11.6