The PRMGBL privilege lets the user's process create or delete
permanent global sections by executing the Create and Map Section
($CRMPSC) or the Delete Global Section ($DGBLSC) system service.
In addition, a process with this privilege (plus CMKRNL and SYSGBL
privileges) can use the Install utility (INSTALL).
Global sections are shared structures that can be mapped simultaneously
in the virtual address space of many processes. All processes see
the same code or data. Global sections are used for reentrant subroutines
or data buffers.
Grant this privilege with care. If permanent global sections
are not explicitly deleted, they tie up space in the global section
and global page tables, which are limited resources.