Each time you change a system value, you need to save the system values.
Saving the system values is critical to your system if any of the following situations occur:
In any situation, if you save your current system values settings, you will not lose your system value information.
System values are stored in the system library, QSYS. You save the QSYS library when you do the following:
If you need to recover your entire system, you will automatically restore your system values when you restore your operating system. You can also save your system information, using the SAVSYSINF command. For more information, see Save system information, located in the iSeries™ Backup and Recovery information.