Single external hard drive is showing up as two separate drives in Disk Utility
I have a 500GB external hard drive (SeaGate Free Agent Go) that was "partitioned" on a mac some time ago, and I want to remove the partition. When I plug it into my mac (MacOS Big Sur 11.0.1) the Disk Utility shows it as two separate disks, with two separate names (that I chose when the disk was separated). One of these 250 sections was used for my Time Machine backups 2 years ago, but I no longer need or want them separated. I want to be able to combine them again into a single 500GB space instead of two 250GB drives. How do I do this?
MacBook Pro 13″, macOS 11.0