$ dmesg | grep 'sd.*logical blocks'
[    1.681544] sd 0:0:0:0: [sda] 1000215216 512-byte logical blocks: (512 GB/477 GiB)
[    1.995583] sd 1:0:0:0: [sdb] 3907029168 512-byte logical blocks: (2.00 TB/1.82 TiB)
[    2.316035] sd 2:0:0:0: [sdc] 234441648 512-byte logical blocks: (120 GB/112 GiB)
[    2.973461] sd 4:0:0:0: [sdd] 5860533168 512-byte logical blocks: (3.00 TB/2.73 TiB)