You need to verify the properties (e.g. total space, used space, available space) of a disk in Linux
You use the /bin/df utility to view disk space information:
$ /bin/df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_testcentos-lv_root 14G 12G 1.7G 88% / tmpfs 499M 0 499M 0% /dev/shm /dev/sda1 477M 131M 321M 29% /boot
The -h switch will output the sizes in “human readable” form instead of number of 1K blocks. If a particular folder is not shown in the ‘Mounted on’ field, then work back up the path until you find a folder that is. In this example, all data on the machine is found on the lv_root logical volume, except for the files in /boot, which reside on a separate partition (/dev/sda1).