Knowing what to save and how often to save it
You should save the parts of your system that change often daily. Every week, you should save the parts of your system that do not change often.
You cannot recover from a site loss or certain types of disk failures if you do not regularly save everything. If you save the right parts of your system, you can recover to point 4 (the last save) that is shown in the backup and recovery timeline.
Parts of your system that change often
This table shows the parts of the system that change often and need to be saved daily.
Item description | IBM-supplied? | When changes occur |
---|---|---|
Security information (user profiles, private authorities, authorization lists) | Some | Regularly, as new users and objects are added or authorities are changed1 |
Configuration objects in QSYS | No | Regularly, when device descriptions are added or changed, or when you use the Hardware Service Manager function to update the configuration information1 |
IBM-supplied libraries that contain user data (QGPL, QUSRSYS) | Yes | Regularly |
User libraries that contain user data and programs | No | Regularly |
Folders and documents | Some | Regularly, if you use these objects |
Distributions | No | Regularly, if you use the distribution function |
User directories | No | Regularly |
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Parts of your system that do not change often
This table shows the parts of the system that do not change often, you can save these on a weekly basis.
Item description | IBM-supplied? | When changes occur |
---|---|---|
Licensed Internal Code (LIC) | Yes | Program temporary fixes (PTFs) or new release of the operating system |
Operating system objects in QSYS library |
Yes | PTFs or new release of the operating system |
IBM® i optional libraries (QHLPSYS, QUSRTOOL) | Yes | PTFs or new release of the operating system |
Licensed program libraries (QRPG, QCBL, Qxxxx) | Yes | Updates to the licensed programs |
Licensed program folders (Qxxxxxxx) | Yes | Updates to the licensed programs |
Licensed program directories (/QIBM/ProdData, /QOpenSys/QIBM/ProdData) | Yes | Updates to the licensed programs |