System Options under z/OS

DLDISPCHG System Option: z/OS

Controls changes in allocation disposition for an existing library data set.

Default:	COMPAT91
Valid in:	configuration file, SAS invocation
Category:	File Control: SASFILES
PROC OPTIONS GROUP=	SASFILES
z/OS specifics:	all

Syntax

DLDISPCHG= AUTO | BYREQUEST | COMPAT91 | NONE

When SAS is assigning a SAS library that the SAS job has already allocated as DISP=SHR, the DLDISPCHG option controls whether SAS re-allocates a library as DISP=OLD.

DLDISPCHG=AUTO: SAS determines whether to upgrade an existing DISP=SHR allocation based on all available information, including the level of authorization with which the client user ID (if applicable) and the SAS session itself have to access the library. AUTO is recommended for SAS/SHARE servers.
DLDISPCHG=BYREQUEST: SAS upgrades an existing DISP=SHR allocation only if it is explicitly requested by DISP=OLD on the library assignment. BYREQUEST is recommended for single user SAS sessions.
DLDISPCHG=COMPAT91: SAS applies the same rules as specified in SAS Release 9.1.3 when upgrading an existing DISP=SHR allocation. COMPAT91 is the default.
DLDISPCHG=NONE: SAS does not upgrade an existing DISP=SHR allocation under any circumstances.

Top of Page