Using the disk usage tool
When you click the Disk Usage icon, AIX displays information for all currently mounted file systems as shown in this example:
Filesystem 512-blocks Free %Used Iused %Iused Mounted on /dev/hd4 16384 7024 58% 1069 27% / /dev/hd2 1359872 493128 64% 17071 11% /usr /dev/hd9var 16384 13528 18% 305 15% /var /dev/hd3 32768 30984 6% 87 3% /tmp /dev/hd1 16384 15368 7% 136 7% /home /dev/lv00 1015808 983440 4% 66 1% /var/psf /dev/lv01 2015232 1951888 4% 16 1% /var/psf/segments /dev/lv02 3014656 2919936 4% 17 1% /var/pdThe first column displays AIX file systems that are also directories. These directories are all subdirectories of the /dev parent directory, which means that they contain special files for I/O devices. The most important column is the fourth from the left that displays the percentage of each file system used.