Before you begin: You need to know the PID of the process. To find the process, issue D OMVS,A=ALL.

Perform the following steps to change the process limits for an active process.

1. Display information about the current parmlib limits for a process with the ID nnn.
   Example: Issue:

   d omvs,limits,pid=nnn

   Result: You will get a display similar to the following:

   BPXO051I 16.42.32 DISPLAY OMVS 277                                    
   OMVS     000D ACTIVE          OMVS=(6F)                               
   USER     JOBNAME  ASID        PID       PPID STATE   START     CT_SECS
   MEGA     MEGA1    0020 0050331651   33554434 1CI--- 16.31.46      .051
     LATCHWAITPID=         0 CMD=sh -L                                   
   PROCESS LIMITS:        LIMMSG=NONE                                    
                     CURRENT  HIGHWATER    PROCESS                       
                       USAGE      USAGE      LIMIT                       
                                                                         
   MAXFILEPROC             6          7        256                       
   MAXFILESIZE           ---        ---    NOLIMIT                       
   MAXPROCUSER             3          4    NOLIMIT                       
   MAXQUEUEDSIGS           0          1       1000                       
   MAXTHREADS              0          0        200                       
   MAXTHREADTASKS          0          0       1000                       
   IPCSHMNSEGS             0          0        500                       
   MAXCORESIZE           ---        ---    4194304                       
   MAXMEMLIMIT             0          0     16383P 

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2. Change the high memory limit, MEMLIMIT, in the address space containing PID nnn.
   Example: Issue:

   SETOMVS PID=nnn, memlimit=16M

   Result: You will get a message that the SETOMVS command was successful.

   _______________________________________________________________

3. Check that the limit has been changed.
   Example: Issue:

   D OMVS,LIMITS,PID=nnn

   Result: You will see a display similar to the following:

   BPXO051I 16.44.40 DISPLAY OMVS 283                                      C
   OMVS     000D ACTIVE          OMVS=(6F)                                  
   USER     JOBNAME  ASID        PID       PPID STATE   START     CT_SECS   
   MEGA     MEGA1    0020 0050331651   33554434 1CI--- 16.31.46      .051   
     LATCHWAITPID=         0 CMD=sh -L                                      
   PROCESS LIMITS:        LIMMSG=NONE                                       
                     CURRENT  HIGHWATER    PROCESS                          
                       USAGE      USAGE      LIMIT                          
                                                                            
   MAXFILEPROC             6          7        256                          
   MAXFILESIZE           ---        ---    NOLIMIT                          
   MAXPROCUSER             3          4    NOLIMIT                          
   MAXQUEUEDSIGS           0          1       1000                          
   MAXTHREADS              0          0        200                          
   MAXTHREADTASKS          0          0       1000                          
   IPCSHMNSEGS             0          0        500                          
   MAXCORESIZE           ---        ---    4194304                          
   MAXMEMLIMIT             0          0        16M *

   _______________________________________________________________

When you are done, you have changed the process limit.