$ diskutil list /dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *251.0 GB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_APFS Container disk1 250.8 GB disk0s2
/dev/disk1 (synthesized): #: TYPE NAME SIZE IDENTIFIER 0: APFS Container Scheme - +250.8 GB disk1 Physical Store disk0s2 1: APFS Volume Macintosh HD 134.3 GB disk1s1 2: APFS Volume Preboot 21.8 MB disk1s2 3: APFS Volume Recovery 509.8 MB disk1s3 4: APFS Volume VM 1.1 GB disk1s4
/dev/disk2 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk2 1: Microsoft Basic Data WD-Work 349.5 GB disk2s1 2: Microsoft Basic Data WD-Studio 349.5 GB disk2s2 3: Microsoft Basic Data WD-Others 301.1 GB disk2s3