Journaling data areas and data queues
When you start journaling for a data area or a data queue, the system writes journal entries for all changes to the data area or data queue.
The following restrictions apply for journaling data areas and data queues:
When you start journaling a data area, you specify whether you want after-images saved, or both before-images and after-images.
- For data areas, only local external data area objects may be journaled. The special data areas (*LDA, *GDA, *PDA) and DDM data areas cannot be journaled.
- For data queues, only local data queues are supported. DDM data queues cannot be journaled.
To start journaling for data areas and data queues, follow these steps.
- In iSeries™ Navigator, expand the system with the data area or data queue you want to journal.
- Expand File Systems.
- Expand Integrated File System.
- Expand QSYS.LIB.
- Select the library with the data area or data queue.
- Right-click the data area or data queue you want to journal and select Journaling.
Or, after you have created the journal, use one the following commands or API for each data area or data queue you want to journal:
- Start Journal (STRJRN) command
- Start Journal Object (STRJRNOBJ) command
- Start Journal (QjoStartJournal) API
Parent topic:
Starting journalingRelated concepts
Reasons to journal before-images