Hi.. May I know how to check a size of the HDD (s) in a linux box. If I issued the following command, does it mean the total HDD size is 30G ?? Could it be some of the HDD space is not used ?? If yes, how to check the real disk space?? Besides, how do we check what is the RAID type and how many HDD is beside the box via linux command or other mean ? [root@linux root]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 4.0G 289M 3.5G 8% / /dev/sda9 6.6G 1.9G 4.5G 30% /apps /dev/sda1 250M 45M 193M 19% /boot /dev/sda6 5.0G 1.7G 3.1G 36% /home none 1.3G 0 1.3G 0% /dev/shm /dev/sda8 2.0G 83M 1.8G 5% /tmp /dev/sda7 4.0G 3.1G 712M 82% /usr /dev/sda5 6.9G 157M 6.4G 3% /var __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com