Why do I have an extra hard drive?
You are seeing the listing for both the logical volume and the physical disk on which that logical volume resides - note the Apple_APFS container disk1 matches the APFS container scheme Identifier disk1 - lines 6, 7, &amp; 10 of your output from diskutil.

Suggest you look in the GUI version of disk util to get a sense of physical disk and logical volume - I think that will make it clearer for you:







hope this helps mate.