You can use several commands to save only information that has changed since the last save operation or since a particular date and time.
You can use the Save Changed Objects (SAVCHGOBJ) command to save only those objects that have changed since a library or group of libraries was last saved. This can be particularly useful in a situation where programs and data files are in the same library. Typically, data files change frequently and programs change infrequently. You can use the SAVCHGOBJ command to save only the files that change.
You can use the Save Document Library Object (SAVDLO) command to save only documents and folders that have changed. Likewise, you can use the Save (SAV) command to save objects in directories that have changed since a particular point.
You might also choose to save changed objects if your batch work load is heavier some nights. For example:
| Day | Batch workload | Save operation |
|---|---|---|
| Friday night | Light | Save menu option 21 |
| Monday night | Heavy | Save changes only1 |
| Tuesday night | Light | Save menu option 23 |
| Wednesday night | Heavy | Save changes only1 |
| Thursday night | Heavy | Save changes only1 |
| Friday night | Light | Save menu option 21 |
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