An important part of your job as system manager is to choose how to
organize the information on your computer system. Traditionally, MPE
systems used accounts, groups and users to structure and allow access
to information.
As of release 4.5 of the operating system, MPE/iX
implements features of POSIX, the IEEE portable operating
system interface standard. One such feature is the Hierarchical File
System, or HFS, which organizes accounts, groups and users under a single
root directory and allows the creation of additional directories to
implement a multi-level file system. This chapter explains the Hierarchical
File System and other features of POSIX that you need to know to organize and
allow access to the information on your computer system. It also gives you
information on the following topics:
creating accounts, groups, and users
creating and working with directories
assigning capabilities, user IDs and group IDs
limiting accounts and groups
setting file space limit for the HPSPOOL account
specifying file access permissions
changing security defaults
