Overview of VMSES/E Saved Segment Support

Managing saved segments requires a system view rather than a product view. A typical z/VM® system consists of the z/VM product plus a number of application products. z/VM uses saved segments for various functions, and many of the applications that run on z/VM also use saved segments. Some of the saved segments that reside on a z/VM system might have requirements for the same storage space. In addition, some saved segments might have dependencies on other saved segments.

VMSES/E saved segment support allows you to:
  • View a segment map that shows all the segment spaces, member saved segments, discontinuous saved segments (DCSSs), and saved systems known to VMSES/E (defined in a saved segment data file) or defined on your system.
    Notes:
    1. Saved systems are displayed in the segment map only to help you plan the layout of your saved segments. You cannot use VMSES/E segment map functions to define or build saved systems.
    2. Logical saved segments are not displayed in the map. However, the displayable definition record for a member saved segment or DCSS known to VMSES/E indicates whether it is a physical saved segment that contains logical saved segments, and the physical saved segment is displayed in the map.
  • Customize saved segment definitions to meet the requirements of your installation. You can add, change, and delete definitions. Then you can view the results of your changes in the segment map before you actually build the saved segments.
  • Use the VMSES/E build process to automate the building of saved segments. VMSES/E keeps track of the saved segments that need to be built.