For Unix based OS such as Linux and Mac Operating System X, the formation of separate HDD partitions for /boot, /home, /tmp, /usr, and all files under the “/” is possible. Such type of portioning scheme has advantages: if 1 file system gets corrupted or inaccessible, the rest of the files and folder stay undamaged, hence decrease the chances of data loss; Other Hard disk partitions can be used read-only and the implementation of setuid files and the folders disabled thus enhancing safety; presentation may be improved. This technique has the drawback of sub dividing the hard disk drive into permanent size HDD partitions. A good execution wants the user to guess how much space each HDD partition will take, particularly for new one. Logical Volume Management, are used in servers, to enhanced the elasticity by letting files in volumes to increase into part physical hard disks drive; one more alternative is to resize current HDD partitions when required. Usually desktop computer are regularly involved of a single “/” having the entire file systems with much lesser swap partition. By default, Mac Operating System X systems use only 1 “/” that contain the whole file system as a point of cleanness.