Specify the address space region size. This sets the POSIX RLIMIT_AS resource values that a process receives when it is identified as a process.
The size is specified in bytes by default. You can select other units of measurement if desired, including kilobytes, megabytes, and gigabytes. When the value is stored on the target system, it is converted to bytes.
The soft limit is obtained from MVS; if it is greater than the MAXASSIZE value, the soft limit is set to the hard limit.
This value is also used when processes are initiated by a daemon process using an exec() after setuid(). In this case, both the RLIMIT_ AS hard and soft limit values are set to the MAXASSIZE specified value.
Note: The IEFUSI user exit can modify the region size of an address space. Users are strongly discouraged from altering the region size of address spaces in the OMVS subsystem category.
Default: 209715200
Range: 10485760 bytes (10 megabytes) to 2147483647 bytes (2 gigabytes).