Filesystem            1K-blocks     Used Available Use% Mounted on
devtmpfs                 486624        0    486624   0% /dev
tmpfs                    501252        0    501252   0% /dev/shm
tmpfs                    501252    12980    488272   3% /run
tmpfs                    501252        0    501252   0% /sys/fs/cgroup
/dev/mapper/rhel-root  10258432  3961756   6296676  39% /
/dev/vda1               1038336   152624    885712  15% /boot
/dev/vdb1              25670884 12369584  11974248  51% /mailstore
tmpfs                    100248        0    100248   0% /run/user/0
