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.