You can use SMIT as described below or simply use lsattr/chdev.
The former will list the current setting as in:

  # lsattr -E -l sys0 -a maxuproc
  maxuproc 40 Maximum # of processes allowed per user True

and you can then increase the maxuproc parameter:

  # chdev -l sys0 -a maxuproc=200
  sys0 changed

If you just type 'lsattr -E -l sys0' you will get a list of all
parameters, some of which can be changed but not others.

If you want to use smit, do as follows:

smit
  System Environments and Processes
    Change / Show Operating System Parameters
      - on this screen you can change by overtyping the following fields:
        - Maximum number of PROCESSES allowed per user
        - Maximum number of pages in block I/O BUFFER CACHE
        - Maximum Kbytes of real memory allowed for MBUFS
      - toggle fields exist for:
        - Automatically REBOOT system after a crash  (false/true)
        - Continuously maintain DISK I/O history (true/false)

Info 1.30 erroneously suggests that in AIX 3.2.5 you can set different
limits for different users.


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