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X Node Data Sets

When installation JCL is created for a change package, a PDS is created for each installation site. The name of the PDS follows this format:

devmodel.X.sitename where:

  • devmodel: DEV MODEL DSNAME on the Global Parameters - Part 6 of 7 panel (CMNGGP06)

  • X: Fixed node name to distinguish the library from package staging libraries.

  • sitename: Site on the function:SITE INFORMATION panel (CMNPRSTI) for the package

    Note: There will be no sitename node for packages residing on an A instance.

This library is often referred to as the X node data set.

The members in this library contain all of the jobs associated with the distribution, installation, baseline ripple, DB2 bind, backout, revert, and temporary package component delete processes for the package.

Member names in the X node data set follow this naming convention:

applttpp where:

  • appl: Three or four character application mnemonic

  • tt: Two character transaction code

  • pp: Last digits of the package number:

    • Two digits where the application mnemonic is four characters

    • Three digits where the application mnemonic is three characters

  • The JCL in each X node data set member is file tailored from the skeleton with name CMNtt, where tt is the two character transaction code. (The name of the skeleton that is actually used may have a suffix, such as I if the ChangeMan ZMF IMS Option is licensed.)

  • Installation jobs are often referred to by their transaction code. For example, "the 30 job" means the job for transaction code 30 that was file tailored from the CMN30 skeleton and is in X node data set member appl30pp.

  • Before customization, installation job names follow the same naming convention as the X node data set members that contain them. Exit program CMNEX008 can be used to customize the job names, but the member names in the X node data set stay the same.

Since a P instance site may not be on the same LPAR or have shared DASD with the D or DP instance where the X node data set is created, a copy of each X node data set is transmitted to its target site in the distribution phase of the package installation process.

The naming convention for the transmitted production X node data set is:

prdmodel.X.sitename where:

  • prdmodel: PRD MODEL DSNAME on the Global Parameters - Part 6 of 7 panel (CMNGGP06)

  • X: Fixed node name to distinguish the library from package staging libraries.

  • sitename: Site on the function:SITE INFORMATION panel (CMNPRSTI) for the package

The contents of the production X node data set are exactly the same as the development X node data set for the same site.