To install the Adabas Delta Save Facility, perform the following steps:
Verify you have prepared and installed the product license file, as described in the Adabas for Mainframes Version 8.5 installation.
If you plan to perform save operations online, allocate space for the DSIM data set and format the data set with the ADAFRM DSIMFRM function, as described in Adabas Utility Functions for Delta Save.
Add the ADARUN parameter DSF=YES to the nucleus and utility jobs used to operate the database (DSF=YES is required for the nucleus and the DSF-related functions of the ADASAV, ADARES, and ADAULD utilities; it is optional for the other utilities. See the section ADARUN Parameter DSF for more information);
To automatically submit a delta save job when the DLOG area usage exceeds a certain threshold, provide the delta save user exit along with the job control statements it requires, and specify the ADARUN DSFEX1 parameter.
Start the nucleus (with DSF=YES);
Using the Adabas Online System (either the demo or full version) "Install DSF" special function described in section Special Online Functions, allocate the DSF logging area;
Perform a normal Adabas database save operation (ADASAV SAVE) to create a full save data set and to enable Delta Save logging. If the save operation is online, merge the online full save data set with the DSIM data set to produce an offline full save, and to free the DSIM data set for further use.