SAS System Options for IMS Databases

IMSDLBKO= SAS System Option

Determines the value of the BKO parameter when SAS invokes an IMS/ESA DLI or DBB region.

Valid in:	SAS invocation, OPTIONS statement
Category:	Engine, DATA step
Default:	IMSDLBKO=*
Tip:	Not restrictable

IMSDLBKO= * | Y | N

DLIBKO= * | Y | N

*: specifies that the BKO parameter is null in the IMS region parameter list, so the default IMS action is taken.
Y: specifies that a DASD log data set must be used. When IMSDLBKO=Y and the SAS session abends, all database updates since the last CHKP call are backed out automatically unless the system crashed.
N: specifies that a DASD log data set must not be used.

Note: The BKO parameter setting determines whether updates in a disk log are backed out automatically if the program abends. [cautionend]