Model: ATA HGST HTS725050A7 (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type     File system  Flags
 3      1049kB  47.5GB  47.5GB  primary  ext4
 2      47.5GB  95.1GB  47.6GB  primary  ext4         boot
 1      442GB   492GB   49.2GB  primary  ext4


Model: SABRENT  (scsi)
Disk /dev/sdb: 500GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type     File system  Flags
 1      1049kB  53.4GB  53.4GB  primary  ext4
 2      53.4GB  100GB   46.8GB  primary  ext4         boot
 3      140GB   180GB   40.1GB  primary  ext4


ray@ray-Kudu-Pro:~$ sudo lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
loop0    7:0    0    13M  1 loop /snap/gnome-characters/103
loop1    7:1    0  34.7M  1 loop /snap/gtk-common-themes/319
loop2    7:2    0   4.9M  1 loop /snap/canonical-livepatch/41
loop3    7:3    0  14.5M  1 loop /snap/gnome-logs/37
loop4    7:4    0   3.7M  1 loop /snap/gnome-system-monitor/54
loop5    7:5    0   3.7M  1 loop /snap/gnome-system-monitor/51
loop6    7:6    0  86.9M  1 loop /snap/core/4917
loop7    7:7    0   4.9M  1 loop /snap/canonical-livepatch/42
loop8    7:8    0  87.9M  1 loop /snap/core/5328
loop9    7:9    0    13M  1 loop /snap/gnome-characters/117
loop10   7:10   0  14.5M  1 loop /snap/gnome-logs/40
loop11   7:11   0 140.9M  1 loop /snap/gnome-3-26-1604/70
loop12   7:12   0    87M  1 loop /snap/core/5145
sda      8:0    0 465.8G  0 disk
├─sda1   8:1    0  45.8G  0 part /
├─sda2   8:2    0  44.3G  0 part
└─sda3   8:3    0  44.2G  0 part
sdb      8:16   0 465.8G  0 disk
├─sdb1   8:17   0  49.8G  0 part
├─sdb2   8:18   0  43.6G  0 part /media/ray/rootMX17
└─sdb3   8:19   0  37.4G  0 part /media/ray/Manjaro
sr0     11:0    1  1024M  0 rom