SYNCHIO System Option: z/OS

Specifies whether synchronous I/O is enabled.
Valid in: Configuration file, SAS invocation
Category: SAS files
PROC OPTIONS GROUP= SASFILES
Default: NOSYNCHIO
z/OS specifics: Default value

Syntax

SYNCHIO | NOSYNCHIO

Required Arguments

SYNCHIO
causes data set I/O to wait for completion.
NOSYNCHIO
allows other logical SAS tasks to execute (if any are ready) while the I/O is being done.

Details

The SYNCHIO system option is a mirror alias of the system option NOASYNCHIO. NOSYNCHIO is equivalent to ASYNCHIO.