NAME          ALIGNMENT MIN-IO OPT-IO PHY-SEC LOG-SEC ROTA SCHED    RQ-SIZE   RA WSAME
sda                   0   4096      0    4096     512    1 deadline     128 4096    0B
|-sda1                0   4096      0    4096     512    1 deadline     128 4096    0B
|-sda2                0   4096      0    4096     512    1 deadline     128 4096    0B
`-sda3                0   4096      0    4096     512    1 deadline     128 4096    0B
  |-rhel-root         0   4096      0    4096     512    1              128 4096    0B
  `-rhel-swap         0   4096      0    4096     512    1              128 4096    0B
sr0                   0    512      0     512     512    1 cfq          128  128    0B
