System Options under z/OS

MSGSIZE= System Option: z/OS

Specifies the size of the message cache.

Default:	196,608
Valid in:	configuration file, SAS invocation
Category:	System Administration: MEMORY, Environment: ENVFILES
PROC OPTIONS GROUP=	MEMORY and ENVFILES
z/OS specifics:	all

Syntax

MSGSIZE=n | nK | nM | nG | MIN | MAX | hexX

n | nK | nM | nG: specifies the size of the message cache in multiples of 1 (bytes); 1,024 (kilobytes); 1,048,576 (megabytes); or 1,073,741,824 (gigabytes). You can specify decimal values for the number of kilobytes, megabytes, or gigabytes. For example, a value of 8 specifies 8 bytes, a value of .782k specifies 801 bytes, and a value of 3m specifies 3,145,728 bytes.
MIN: sets message cache size to 0 and tells SAS to use the default value.
MAX: sets message cache size to 2,147,483,647.
hexX: specifies message cache size as a hexadecimal number of bytes.

The MSGSIZE= option is set during the installation process and normally is not changed after installation.