On Mon, 9 Feb 2009 08:29:52 -0600, Linda Hagedorn wrote: >I need to know which of these sentences is true: > > The order the datasets were typed into PROGxx is the > order the libraries will be searched, and the order they > were typed can be relied upon. > - or - > LLA will determine which modules will provide the best > performance for fetch and therefore, LLA could chose any > library out of the typed (in PROGxx) sequence order. The > order the datasets were type into PROGxx cannot be relied > upon for search sequence.
LNKLST is a concatenation and is searched like any other concatenation, from top to bottom until the member is found. The first member found is the one that is used. LNKLST is normally defined by SETPROG ADD statements in PROGxx. The default for SETPROG ADD is ATBOTTOM and if you use that for each data set, the LNKLST data sets will be defined in the order that your SETPROG ADD statements are encountered. Remember that you can have multiple PROGxx members adding to the LNKLST concatenation and you can order the data sets in other ways if you choose. In addition, you can create a new LNKLST set and insert data sets wherever you like using the SETRROG or SET PROG command. When the new LNKLST set is activated, new jobs will use the new LNKLST set. This is documented in the Init and Tuning Giude, Init and Tuning Reference and System Commands manuals. -- Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
