Planning to install in a saved segment

Defining frequently used data (such as licensed programs) as saved segments provides several advantages:

Several users can access the same physical storage, therefore use of real storage is minimized.
Using saved segments decreases the input and output rate and the DASD paging space requirements, thus improving the performance of the virtual machine.
Saved segments attached to a virtual machine can reside above its defined virtual storage.
In the install process a physical saved segment is defined and its logical saved segment loaded.

Segment planning should be done at the system level. A VMSES/E tool, VMFSGMAP provides system-level management support functions.

In Step 5: Define and build High Level Assembler saved segment (optional), the process of defining and building a saved segment is shown in detail. If you are unfamiliar with this process, refer to z/VM: Saved Segments Planning and Administration.