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Multiple Linklist Parameter Library Members

IP.com Disclosure Number: IPCOM000079153D
Original Publication Date: 1973-May-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

McTiernan, WJ: AUTHOR

Abstract

In IBM OS/360, SYS1. PARMLIB is a system data set having a member LNKLST00, which contains library names to be concatenated with the system data set SYS1. LINKLIB to form the system library for a specific IPL (Initial Program Load). When libraries, other than the ones currently existing in LNKLST00, are needed for an IPL, the LNKLST00 member must be modified prior to the IPL. To avoid this limitation and procedure, multiple LNKLST members are used. They are named LNKLSTXX; where XX is an alphameric suffix added to LNKLST to identify unique members. In this manner, several LNKLST members, containing various library names used for the different IPLs, can be created and used. The member, or members, desired for the current IPL can be selected via a system parameter: LNK = (aa [, bb, cc, ...] ) where aa, bb, cc, etc.

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Multiple Linklist Parameter Library Members

In IBM OS/360, SYS1. PARMLIB is a system data set having a member LNKLST00, which contains library names to be concatenated with the system data set SYS1. LINKLIB to form the system library for a specific IPL (Initial Program Load). When libraries, other than the ones currently existing in LNKLST00, are needed for an IPL, the LNKLST00 member must be modified prior to the IPL. To avoid this limitation and procedure, multiple LNKLST members are used. They are named LNKLSTXX; where XX is an alphameric suffix added to LNKLST to identify unique members. In this manner, several LNKLST members, containing various library names used for the different IPLs, can be created and used. The member, or members, desired for the current IPL can be selected via a system parameter: LNK = (aa [, bb, cc, ...] ) where aa, bb, cc, etc. are appended to LNKLST to form the unique member names.

With the above procedure, the needed LNKLST members are created only once and no constant updating is needed. Each member selected for the current IPL is read during NIP (Nucleus Initialization Program) processing and the contents are used in creating the system library.

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