I'm new to all this.
I am setting up a R-PI for photo backups only.
I'm going to attach 2 USB external hard drives formatted EXT4 with photos on them already. Both the drives are 2 TBs.
What option do I follow to simply add them to NAS without wiping them so I
have access to the medias from another PCs in my LAN.
All the documents I'm seeing referring me to wiping the drives first.