
4.5 Variable I-nodes
In all UNIX implementations, when a file system is created, several data
structures known as i-nodes are written to the disk. For each file or directory
one such data structure is used which describes information pertaining to it. The
sort of information which is stored in the i-node includes file type, permissions,
size, user and group owner ids. Other critical pieces of information that are held
in the i-node are the disk addresses at which the files data is stored.
AIX, like other UNIX implementations, reserves a number of i-nodes for files and
directories in each file system that is created. In releases prior to AIX Version ...