Filesystem            1K-blocks     Used Available Use% Mounted on
devtmpfs                 487592        0    487592   0% /dev
tmpfs                    502220        0    502220   0% /dev/shm
tmpfs                    502220    13004    489216   3% /run
tmpfs                    502220        0    502220   0% /sys/fs/cgroup
/dev/mapper/rhel-root  10258432  4336784   5921648  43% /
/dev/vda1               1038336   152624    885712  15% /boot
/dev/vdb1              25670884 12359584  11984248  51% /mailstore
tmpfs                    100444        0    100444   0% /run/user/0
