Filesystem            1K-blocks     Used Available Use% Mounted on
devtmpfs                 487540        0    487540   0% /dev
tmpfs                    502916        0    502916   0% /dev/shm
tmpfs                    502916    13044    489872   3% /run
tmpfs                    502916        0    502916   0% /sys/fs/cgroup
/dev/mapper/rhel-root  10258432  4563620   5694812  45% /
/dev/vda1               1038336   152624    885712  15% /boot
/dev/vdb1              16382844 12357832   3169768  80% /mailstore
tmpfs                    100580        0    100580   0% /run/user/0
