z/OS system installation and maintenance
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System installation and maintenance using SMP/E

z/OS system installation and maintenance

System Modification Program Extended (SMP/E) is the z/OS® tool for managing the installation of software products on a z/OS system and for tracking modifications to those products.

SMP/E controls these changes at the component level by:

  • Selecting the proper levels of code to be installed from a large number of potential changes.
  • Calling system utility programs to install the changes.
  • Keeping records of the installed changes by providing a facility to enable you to inquire on the status of your software, and to reverse the change if necessary.

All code and its modifications are located in the SMP/E database called the consolidated software inventory (CSI), which is comprised of one or more VSAM data sets.

SMP/E can be run either using batch jobs or using dialogs under ISPF/PDF. With SMP/E dialogs, you can interactively query the SMP/E database and create and submit jobs to process SMP/E commands.

  • The SMP/E view of the system
    A z/OS system might appear to be one big block of code that drives the CPU. Actually, z/OS is a complex system comprising many different smaller blocks of code, and that's how SMP/E sees z/OS.
  • How the SMP/E environment is similar to a public library
    To properly perform its processing, SMP/E must maintain a great deal of information about the structure, content, and modification status of the software it manages. Think of all the information SMP/E has to maintain as if it were all the information contained in the public library.
  • SMP/E data sets for inventory, zones, and libraries
    To install z/OS elements in target and distribution libraries, SMP/E uses a database made up of several types of data sets.
  • What is a SYSMOD?
    SMP/E can install a large variety of system updates, provided they are packaged as a system modification or SYSMOD. A SYSMOD is the actual package of elements and control information that SMP/E needs to install and track system modifications.
  • The SMP/E process for installing z/OS elements or service
    This summary of SMP/E processing illustrates how z/OS elements or service updates are installed.
  • SMP/E commands
    Three commands– RECEIVE, APPLY, and ACCEPT– drive the SMP/E process for installing z/OS elements or service.
Parent topic: z/OS software maintenance

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