Saving the System Software
You should have a backup set that saves just the system software. The topic Other Backup Set Types describes how to set up the SAVSYS backup set. This backup set saves only the QSYS library, which contains the IBM i operating system, security information, licensed internal code, private authorities, and device configurations. Because this type of save requires that the system be in a restricted state, use the Restricted State Utility and schedule a Robot Schedule job to run the save command unattended. These saves can use the menu options discussed in this section, but they must be run from the system console.