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Warm wishes and welcome to all AS400 Administrators and Operators.



This is exclusive blog for iSeries system Administrators working anywhere in the world. Also a place for guys and gals who want to share knowledge pertaining to iSeries. This blog has been designed for exchanging knowledge on AS400 or iSeries server administration and operations.



Wednesday, March 17, 2010

Can QGPL Library Safely Be Placed In QSYSLIBL?

The general question regards whether or not it is safe to place QGPL library in the system library list, thus in QSYSLIBL, as opposed to having it remain in the user library list, thus QUSRLIBL. There is no system restriction or fundamental reason why that should not be done. One needs to be careful to not accidentally place the library name in both of the library lists, because that can cause major difficulties.


There is a possibility that some particular application has some dependency that requires that QGPL be in the user library list but hopefully there will be few of those. One should keep in mind that if a particular user uses commands and programs from his own current library for which there are similarly named objects in QGPL, then if the QGPL library is changed from the user library list to the system library list, situations may occur causing the wrong version of these objects to be used. If the object names are library qualified, this problem is not a possibility; whereas if the library qualification is merely *LIBL, this problem could occur.

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