MAXASSIZE

MAXASSIZE is the maximum region size (in bytes) for an address space that was created by rlogind, telnetd, and other daemons. The MAXASSIZE value limits the amount of storage below 2 GB, including both above and below the 16 MB line. If MAXASSIZE is greater than LDALIMIT (the <16M limit), then the LDAELIM (the >16M limit) is set to MAXASSIZE - LDALIM.

You can set a system-wide limit in BPXPRMxx and then set higher limits for individual processes. Use the RACF® ADDUSER or ALTUSER command to specify the ASSIZEMAX limit on a per-process basis as follows:

ALTUSER userid OMVS(ASSIZEMAX(nnnn)