Setting the z/OS UNIX limits in BPXPRMxx
MAXASSIZE specifies the maximum address space
(process) region size. Set MAXASSIZE in SYS1.PARMLIB(BPXPRMxx) to
2G, which is the maximum value allowed.
MAXTHREADS specifies the maximum number of active
threads for a single process. Set MAXTHREADS in SYS1.PARMLIB(BPXPRMxx) to
1500 or higher.
MAXTHREADTASKS specifies the maximum number of
active MVS tasks for a single
process. Set MAXTHREADTASKS in SYS1.PARMLIB(BPXPRMxx) to
1500 or higher.
MAXPROCUSER specifies the maximum number of processes
that a single z/OS® UNIX user ID can have concurrently active. Set MAXPROCUSER in SYS1.PARMLIB(BPXPRMxx) to
50 or higher.
These values can be checked and set dynamically until the next IPL with the following console commands:
DISPLAY OMVS,OSETOMVS MAXASSIZE=2GSETOMVS MAXTHREADS=1500SETOMVS MAXTHREADTASKS=1500SETOMVS MAXPROCUSER=50