ppetraki@:seastar$ sudo hdparm -tT /dev/sdb
/dev/sdb:
 Timing cached reads:   5912 MB in  2.00 seconds = 2956.25 MB/sec
 Timing buffered disk reads: 652 MB in  3.01 seconds = 216.79 MB/sec


ppetraki@:seastar$ lsscsi 
[0:0:0:0]    disk    ATA      Samsung SSD 850  2B6Q  /dev/sda 
[1:0:0:0]    disk    ATA      Micron_M600_MTFD MU01  /dev/sdb