Product set for z/OS and closely-related products

The z/OS® product set consists of all z/OS elements and features and other products that either must be installed with z/OS, or that you choose to install with z/OS. Some products must be installed with z/OS because they share load modules with z/OS load modules. Others can be installed separately but are difficult to maintain separately because of frequent service dependencies or local installation policies. Products in these two categories should always be part of the z/OS product set.

Note: Remember to add products to the z/OS product set that install into data sets that cannot be concatenated, such as SYS1.NUCLEUS. For example, the PSF product should be treated as part of the z/OS product set because it installs into SYS1.NUCLEUS.

Other products within the MVS™ SREL need not be installed with z/OS and are not difficult to maintain separately. However, unless your installation has a reason to place them in a separate product set, you should consider including them in the z/OS product set.